A1BG is the official symbol for GeneID: 1, "A1BG alpha-1-B glycoprotein [ Homo sapiens ]", in the National Center for Biotechnology Information (NCBI) gene database for gene-specific information. To access information about this gene, use the "Home - Gene - NCBI" external link and enter "1[uid]", without the quotes, or the number one after the "/". The official name of this gene is "alpha-1-B glycoprotein". "The protein encoded by this gene is a plasma glycoprotein of unknown function. The protein shows sequence similarity to the variable regions of some immunoglobulin supergene family member proteins."
Transcription of eukaryotic genes is believed to be reasonably well understood. Not all the facts are known but phenomenology is probably complete. Each possibility to cause a simple computer program to transcribe the gene for A1BG is to be tested.
Most undergraduate university courses describe transcription, so many of the terms used here to analyze the transcription should be reasonably understood. Some usage of state-of-the-art refereed journal articles is included.
Although there are computer programs being used to predict the effects of gene expression, up-regulation or down-regulation, most of these are quite advanced and are not readily available for students or researchers outside specific universities or companies performing drug research and testing.
Just about any student with access to a computer in various forms is able to write small programs in a variety of computer languages to test for themselves whether or not a specific algorithm works to transcribe this gene.
The transcription start site for A1BG has probably been discovered through the use of reverse transcriptase. The publication demonstrating this has not been found. Further, the product of the gene has been detected, but exactly how the product has its messenger RNA initially transcripted is unspecified and perhaps unknown.
- 1 Notations
- 2 Control groups
- 3 Genomes
- 4 Genes
- 5 Gene expressions
- 6 Gene IDs
- 7 Gene clusters
- 8 Gene regulations
- 9 Upregulations
- 10 Downregulations
- 11 Gene similarities
- 12 Human DNA
- 13 Epigenomes
- 14 Alternate sites
- 15 Gene transcriptions
- 16 Immunoglobulin domain
- 17 Angiotensin-converting enzyme
- 18 A1BG-CRISP3
- 19 Genomic product
- 20 Strands
- 21 Preinitiation complexes
- 22 Promoters
- 23 Focused promoters
- 24 Dispersed promoters
- 25 Distal promoters
- 26 Proximal promoters
- 27 Core promoters
- 28 Nucleotides
- 29 Transcription start sites
- 30 TAFs
- 31 5'-untranslated region
- 32 TBP binding
- 33 RNA polymerase II holoenzymes
- 34 Hypotheses
- 35 See also
- 36 References
- 37 Further reading
- 38 External links
Notation: let the symbol / replace or.
For example, (A or C or G) becomes (A/C/G).
Notation: let the following table of International Union of Pure and Applied Chemistry (IUPAC) stand for the nucleotides indicated.
|IUPAC nucleotide code||Base|
|N||any base (A/C/G/T)|
For the transcription of A1BG, a control group would likely have a DNA segment that contains at least one transcription start site, e.g., G/A/T-G/C+1-G-T/C-G-G-G/A-A-G/C. This segment directs the RNA polymerase II holoenzyme complex to the exact TSS.
In terms of a promoter, this transcription by definition should occur in either the core promoter or the proximal promoter. If not fully understood, the TSS may occur in either a focused promoter or a dispersed promoter.
A transcriptional characteristic of a promoter element may be to be located between -8 and +2 relative to at least one TSS.
Each promoter element may be found in at least one gene or isoform.
Shown on the top diagram is the genomic context of A1BG as of 2010. The gene is overlapped by a non-coding RNA (NCRNA00181), and has nearby genes ZSCAN22 at the 5' end and ZNF497 (GeneID: 162968) at the 3' end. The nucleotides between genes ZSCAN22 (GeneID: 342945) and the 5'-end of A1BG, should contain the A1BG promoter. NCRNA00181, which overlaps A1BG, has numbered nucleotides 58863336 to 58866548.
In the lower diagram NCRNA00181 has undergone a name change to A1BG antisense RNA 1 (A1BG-AS1), GeneID: 503538.
Orthologs of A1BG occur in
- Acinonyx jubatus (cheetah),
- Ailuropoda melanoleuca (giant panda),
- Aotus nancymaae (Ma's night monkey),
- Balaenoptera acutorostrata scammoni,
- Bison bison bison,
- Bos taurus (cattle),
- Bubalus bubalis (water buffalo),
- Callithrix jacchus (white-tufted-ear marmoset),
- Camelus bactrianus (Bactrian camel),
- Camelus dromedarius (Arabian camel),
- Camelus ferus (Wild Bactrian camel),
- Canis lupus familiaris (dog),
- Capra hircus (goat),
- Cavia porcellus (domestic guinea pig),
- Ceratotherium simum simum (southern white rhinoceros),
- Cercocebus atys (sooty mangabey),
- Chinchilla lanigera (long-tailed chinchilla),
- Chlorocebus sabaeus (green monkey),
- Chrysochloris asiatica (Cape golden mole),
- Colobus angolensis palliatus,
- Dasypus novemcinctus (nine-banded armadillo),
- Echinops telfairi (small Madagascar hedgehog),
- Eptesicus fuscus (big brown bat),
- Equus asinus (ass),
- Equus caballus (horse),
- Equus przewalskii (Przewalski's horse),
- Felis catus (domestic cat),
- Fukomys damarensis (Damara mole-rat),
- Galeopterus variegatus (Sunda flying lemur),
- Gorilla gorilla (western gorilla),
- Heterocephalus glaber (naked mole-rat),
- Homo sapiens (human),
- Jaculus jaculus (lesser Egyptian jerboa),
- Leptonychotes weddellii (Weddell seal),
- Loxodonta africana (African savanna elephant),
- Macaca fascicularis (crab-eating macaque),
- Macaca mulatta (Rhesus monkey),
- Macaca nemestrina (pig-tailed macaque),
- Mandrillus leucophaeus (drill),
- Marmota marmota marmota (Alpine marmot),
- Mesocricetus auratus (golden hamster),
- Microcebus murinus (gray mouse lemur),
- Microtus ochrogaster (prairie vole),
- Miniopterus natalensis,
- Mus musculus (house mouse),
- Mustela putorius furo (domestic ferret),
- Myotis brandtii (Brandt's bat),
- Myotis davidii,
- Myotis lucifugus (little brown bat),
- Nannospalax galili (Upper Galilee mountains blind mole rat),
- Nomascus leucogenys (northern white-cheeked gibbon),
- Ochotona princeps (American pika),
- Octodon degus (degu),
- Odobenus rosmarus divergens (Pacific walrus),
- Orcinus orca (killer whale),
- Orycteropus afer afer,
- Oryctolagus cuniculus (rabbit),
- Otolemur garnettii (small-eared galago),
- Ovis aries (sheep),
- Pan paniscus (pygmy chimpanzee),
- Pan troglodytes (chimpanzee),
- Panthera tigris altaica (Amur tiger),
- Papio anubis (olive baboon),
- Peromyscus maniculatus bairdii (prairie deer mouse),
- Physeter catodon (sperm whale),
- Pongo abelii (Sumatran orangutan),
- Propithecus coquereli (Coquerel's sifaka),
- Pteropus alecto (black flying fox),
- Pteropus vampyrus (large flying fox),
- Rhinopithecus roxellana (golden snub-nosed monkey),
- Rousettus aegyptiacus (Egyptian rousette),
- Saimiri boliviensis (Bolivian squirrel monkey),
- Sarcophilus harrisii (Tasmanian devil),
- Sorex araneus (European shrew),
- Sus scrofa (pig),
- Trichechus manatus latirostris (Florida manatee),
- Tupaia chinensis (Chinese tree shrew),
- Ursus maritimus (polar bear),
- Vicugna pacos (alpaca).
Def. a "unit of heredity; a segment of DNA or RNA that is transmitted from one generation to the next, and that carries genetic information such as the sequence of amino acids for a protein" is called a gene.
Although it is harder to regulate the transcription of genes with multiple transcription start sites, "variations in the expression of a constitutive gene would be minimized by the use of multiple start sites."
Earlier "studies led to the design of a super core promoter (SCP) that contains a TATA, Inr, MTE, and DPE in a single promoter (Juven-Gershon et al., 2006b). The SCP is the strongest core promoter observed in vitro and in cultured cells and yields high levels of transcription in conjunction with transcriptional enhancers. These findings indicate that gene expression levels can be modulated via the core promoter."
Pancreatic juice is "an exceptionally rich source of proteins which are released from pancreatic cells in the physiological state". Matrix metalloproteinase-9 (MMP-9), A1BG, and oncogene DJ-1 occur in the pancreatic cancer juice. "MMP-9, DJ-1 and A1BG [are] positively expressed in 82.4%, 72.5% and 86.3% of pancreatic cancer tissues, significantly higher than that in normal pancreas tissues."
Gene expressions for A1BG is a suite of genes, and their isoforms, that appear to be biochemically involved in the appearance of A1BG products.
A concept search of the National Institutes of Health NCBI gene database (http://www.ncbi.nlm.nih.gov/gene/) may provide possible genes (and associated isoforms and variants) participating in or causing altered expressions of A1BG.
- GeneID: 1 A1BG alpha-1-B glycoprotein.
- GeneID: 310 ANXA7 annexin A7.
- GeneID: 368 ABCC6 ATP binding cassette subfamily C member 6.
- GeneID: 1026 CDKN1A cyclin-dependent kinase inhibitor 1A.
- GeneID: 2886 GRB7 growth factor receptor bound protein 7.
- GeneID: 5980 REV3L REV3 like, DNA directed polymerase zeta catalytic subunit.
- GeneID: 6472 SHMT2 serine hydroxymethyltransferase 2.
- GeneID: 6606 SMN1 survival of motor neuron 1, telomeric.
- GeneID: 6622 SNCA synuclein alpha.
- GeneID: 7083 TK1 thymidine kinase 1.
- GeneID: 10321 CRISP3 cysteine rich secretory protein 3.
- GeneID: 10549 PRDX4 peroxiredoxin 4.
- GeneID: 80854 SETD7 SET domain containing lysine methyltransferase 7.
- GeneID: 284161 GDPD1 glycerophosphodiester phosphodiesterase domain containing 1.
GeneID: 348 APOE apolipoprotein E description also contains this: "This gene maps to chromosome 19 in a cluster with the related apolipoprotein C1 and C2 genes."
Although genes on chromosome 19 may not be expressed when A1BG is expressed, they may be close enough or part of the cluster that is activated. Each of these would then be checked against the NASA database and the open literature searchable with Google Scholar or other search engines.
GeneID: 718, C3, complement component 3, 19p13.3-p13.2.
GeneID: 2524, SE, fucosyltransferase 2, 19q13.3.
GeneID: 4059, LU, basal cell adhesion molecule (Lutheran blood group), 19q13.2.
GeneID: 1, A1BG, alpha-1-B glycoprotein, 19q13.4.
"The most likely order would appear to be C3-SE-LU-A1BG."
Each gene, or its isoforms, is likely to have upregulation and downregulation transcription factors. As each gene is investigated, these enhancers and inhibitors are noted as discovered.
"Compared with [healthy individuals] HI, 42 proteins were more abundant and 8 were less abundant in [dust-exposed workers without silicosis] DEW, and these were also differentially accumulated in [silicosis patients] SP. Closer inspection revealed that serine protease granzyme A, alpha-1-B-glycoprotein (A1BG) and the T4 surface glycoprotein precursor (TSGP) were among the up-regulated proteins in DEW and SP. Significant changes in serine proteases, glycoproteins and proto-oncogenes may be associated with the response to cytotoxicity and infectious pathogens by activation of T cells, positive regulation of extracellular matrix structural constituents and immune response, and fibroblast proliferation."
"A1BG was reportedly involved in a number of diseases such as endometrial cancer, cervical cancer and cervical squamous cell carcinoma (30), and was also elevated in hepatic fibrosis patients, which allowed such patients to be easily distinguished from HI (31)."
"Up-regulation of both A1BG and TSGP in DEW indicated that these proteins may be involved in the early regulation of fibrosis in the lung and may be potentially useful for diagnosis factors."
"The present study investigated five sera samples from females who were Human Papilloma Virus (HPV) 16+ and who had been histopathologically diagnosed with CIN III, as well as five sera samples from healthy control females who were HPV-negative. Protein separation was performed using two-dimensional (2D) gel electrophoresis and the proteins were stained with Colloidal Coommassie Blue. Quantitative analysis was performed using ImageMaster 2D Platinum 6.0 software. Peptide sequence identification was performed using a nano-LC ESIMS/MS system. The proteins with the highest Mascot score were validated using western blot analysis in an additional 55 sera samples from the control and CIN III groups. The eight highest score spots that were found to be overexpressed in the CIN III sera group were identified as α-1-B glycoprotein (A1BG), complement component 3 (C3), a pro-apolipoprotein, two apolipoproteins and three haptoglobins. Only A1BG and C3 were validated using western blot analysis, and the bands were compared between the two groups using densitometry analysis. The relative density of the bands of A1BG and C3 was found to be greater in all of the serum samples from the females with CIN III, compared with those of the individuals in the control group."
"Downregulation of serum A1BG and afamin in non-131I-avid lung metastases of [papillary thyroid carcinoma] PTC was validated in an independent set of serum samples (serum samples from 25 PTC patients with 131I-avid lung metastases and 25 PTC patients with non-131I-avid lung metastases) by western blotting to evaluate their potential as serum biomarkers."
There are genes on other chromosomes that are similar to each gene being considered.
A "metalloproteinase inhibitor designated oprin (opossum [Didelphis virginiana] proteinase inhibitor) [...] is a single-chain glycoprotein (26% carbohydrate) with an estimated Mr = 52,000, pI = 3.5, and E(1%/1 cm) = 11. Oprin inhibited snake venom metalloproteinases [...] Incubation of Crotalus atrox alpha-proteinase (EC 18.104.22.168) with oprin, and analysis of the reaction products by chromatography on Mono Q HR 5/5 and by electrophoresis under nondenaturing conditions, indicated formation of an inactive enzyme/inhibitor complex. The complex dissociated during SDS/polyacrylamide gel electrophoresis. An opossum liver cDNA library was immunoscreened, and clones containing cDNA encoding for part of the open reading frame for oprin were isolated. The cDNA inserts contained nucleotide sequences corresponding to two internal amino acid sequences of oprin which had been separately determined by protein sequence analysis. Protein database screening using a 211 amino acid sequence deduced from one of the cDNA inserts showed no significant homology to known proteinase inhibitors. There was, however, a 36% identity with human alpha 1B-glycoprotein, a plasma protein of unknown function related to the immunoglobulin supergene family. In addition, the amino-terminal sequence of oprin showed 46% identity with human alpha 1B-glycoprotein in a 26 amino acid residue overlap."
"DM64 is an acidic protein showing 15% glycosylation and with a molecular mass of 63 659 Da when analysed by MALDI-TOF MS. It was cloned and the amino acid sequence was found to be homologous to DM43, a metalloproteinase inhibitor from D. marsupialis serum, and to human alpha1B-glycoprotein, indicating the presence of five immunoglobulin-like domains."
"DM64 has the same high similarity (78%) with DM43 and oprin. In addition, 50% similarity was found with human α1B-glycoprotein, a plasma protein of unknown function and a member of the immunoglobulin supergene family  [...]. Each domain of these proteins possesses two cysteine residues at conserved positions [...]. DM64 also presented four putative N-glycosylation sites [...], three of them aligning to the same DM43 sites [...]. A gap of four amino acids beginning after residue 242 of DM64 is also present in human α1B-glycoprotein. Such gap was not found on the third domain of DM43."
"[H]uman DNA has millions of on-off switches and complex networks that control the genes' activities. ... [A]t least 80% of the human genome is active, which opposed the previously held idea that most of the DNA are useless."
"DNA contains genes, which hold the instructions for [life. But, these] take up only about 2 percent of the genome ... The human genome is made up of about 3 billion “letters” along strands that make up the familiar double helix structure of DNA. Particular sequences of these letters form genes, which tell cells how to make proteins. People have about 20,000 genes, but the vast majority of DNA lies outside of genes. ... [A]t least three-quarters of the genome is involved in making RNA [...] it appears to help regulate gene activity."
There are "more than 4 million sites where proteins bind to DNA to regulate genetic function, sort of like a switch."
Over 50% of human DNA consists of non-coding repetitive sequences.
Some DNA sequences may encode functional non-coding RNA molecules, which are involved in the regulation of gene expression.
About 2700 formerly active genes are now pseudogenes. Additional DNA is used in introns and for centromeres and telomeres.
Some introns themselves encode specific proteins or can be further processed after splicing to generate noncoding RNA molecules.
"Hypertension is the most common chronic disease in the United States, affecting approximately one third of the adult population, and is a major risk factor for acute myocardial infarction (MI), stroke, heart failure, and renal failure.1 Numerous antihypertensive drugs are considered appropriate first-line therapy to lower blood pressure (BP), including diuretics, β-blockers (βB), calcium channel blockers (CCB), angiotensin-converting enzyme inhibitors, and angiotensin receptor blockers. These drugs are ultimately prescribed to prevent the long-term cardiovascular complications of hypertension.2 However, there is great interpatient variability in antihypertensive drug response, with only ≈50% of patients achieving an adequate BP response to any 1 drug,3 and limited data are available to guide treatment selection. Why patients respond differently to the same drug and why some patients experience adverse cardiovascular outcomes, despite BP control, while others do not, remains poorly understood. Pharmacogenomics aims to identify genetic markers that are associated with drug response, outcomes, and adverse events."
A nonsynonymous (ns) single-nucleotide polymorphism (SNP) "rs893184, located in A1BG (α-1-B glycoprotein; white interaction P=0.0248, Hispanic interaction P=0.0310, and combined interaction P=0.0036; Table 2; Figure S1B). rs893184 causes a histidine (His) to arginine (Arg) substitution at amino acid position 52 in A1BG. His carriers had a lower risk for the [primary outcome] PO in the [calcium channel blockers] CCB strategy in whites and Hispanics, whereas Arg/Arg patients had a higher risk for the PO in the CCB strategy."
"The α-1-B glycoprotein precursor (A1BG) is also located at 19q13.4 (6.85 Mb away from SIGLEC12) and encodes a plasma glycoprotein with unknown function. The A1BG protein is a member of the immunoglobulin superfamily and has been shown to form a complex with cysteine-rich secretory protein 3, a protein present in neutrophilic granulocytes that is thought to play a role in innate immunity.15"
Def. one "of a number of alternative forms of the same gene occupying a given position on a chromosome" is called an allele.
"The distribution of plasma α1B-glycoprotein (A1BG) was determined by a two-dimensional electrophoresis (agarose-polyacrylamide gel) followed by protein staining in a group of 1099 individuals from 11 populations of the Indian subcontinent. The sample comprised 454 from several tribes of Arunachal Pradesh; 76 Bengali Hindus and 88 Bengali Muslims; 179 Tamil Hindus from Singapore and 107 from India; 81 Tamil Muslims, 48 Sinhalese from Sri Lanka and 66 North Indians. Three common A1BG phenotypes (1–1, 1–2 and 2–2) were observed in this study. One each of a new allele (A1BG*7) in heterozygous form (1–7) was detected respectively among Tamil Hindus of India and Singapore. The phenotypic distribution of A1BG alleles was at Hardy-Weinberg equilibrium in all the populations. The frequency of A1BG*2 was in general lower in the Mongoloid tribes of Arunachal Pradesh (0·043–0·104) and North Indians (0·068) compared to that in other Indian populations (0·130–0·171) and Sinhalese (0·208)."
Inside each eukaryote nucleus is genetic material (DNA) surrounded by protective and regulatory proteins. These protective and regulatory proteins and the dynamic changes to them that occur during the course of a eukaryote's existence are the epigenome.
There are "nearly 50,000 acetylated sites [punctate sites of modified histones] in the human genome that correlate with active transcription start sites and CpG islands and tend to cluster within gene-rich loci."
Any of the epigenome sites may be influenced during or before transcription to modify gene expressions.
Alternate transcription start sites may be needed. These include those on the coding strand, from the opposite direction (other end of the gene) on the same strand, additional start sites of isoforms, other start sites for the same product, ncRNA or miscRNA start sites within the gene, and pseudogenes.
To induce the transcription mechanism to relocate to an alternate site, a modification to a transcription factor may be required.
These two genes produce versions of integrase which appear to facilitate strand transfer from the coding strand to the template strand using a retrotransposon:
- GeneID: 54826 GIN1 gypsy retrotransposon integrase 1 and
- GeneID: 57523 NYNRN NYN domain and retroviral integrase containing.
"The human testis Rad51 protein, a structural homolog of E. coli RecA, binds single- and double-stranded DNA and exhibits DNA-dependent ATPase activity. [...] hRad51 promotes homologous pairing and strand exchange reactions in vitro. Joint molecule formation was dependent upon ATP hydrolysis and DNA homology and was stimulated by the single-strand DNA-binding protein RP-A. In these reactions, the 5′ terminus of the complementary strand of the linear duplex was efficiently transferred to the ssDNA. However, under standard conditions, extensive strand exchange was not observed. These results establish hRad51 as a functional homolog of RecA, but indicate that the human protein and its bacterial counterpart differ in their ability to promote extensive strand transfer. It is proposed that hRad51 mediates homology recognition and initiates strand exchange, but that extensive heteroduplex formation in higher organisms requires the actions of additional proteins."
Mutational "asymmetry has acted over long periods of time to produce a compositional asymmetry, an excess of G+T over A+C on the coding strand, in most genes [of mammals]."
The detection of the gene product presumes that transcription occurs and may suffice as proof of concept.
RNA polymerase II holoenzyme complex finds and uses the transcription start site. Once the DNA double helix and its associated epigenome have been melted so that the template strand is available for binding, a transcription factor binds to a specific nucleotide sequence to biochemically influence gene transcription.
|Transcription factor glossary|
|• coactivator – a protein that works with transcription factors to increase the rate of gene transcription|
|• corepressor – a protein that works with transcription factors to decrease the rate of gene transcription|
|• downregulation, repression, or suppression – decrease the rate of gene transcription|
|• factor – a substance, such as a protein, that contributes to the cause of a specific biochemical reaction or bodily process|
|• general transcription factor – a transcription factor that activates gene transcription|
|• gene transcription - copying of DNA into messenger RNA by RNA polymerase|
|• transcriptional regulation – modulating the rate of gene transcription|
|• upregulation, activation, or promotion – increase the rate of gene transcription|
The angiotensin I converting enzyme (ACE) is "involved in catalyzing the conversion of angiotensin I into a physiologically active peptide angiotensin II" and has a "testicular form ... variant (2)".
ACE "plays a key role in the renin-angiotensin system."
"CRISP proteins have been shown to be involved in various functions related to sperm–oocyte fusion, innate host defense function and ion channel blockage."
"Multiple members of the CRISP family have been identified in the mammalian male genital tract (CRISP1, CRISP2 and CRISP3)."
"[T]here is evidence that prostate cancer patients with higher levels of CRISP3 have a smaller probability of recurrence-free outcomes ."
The human cysteine-rich secretory protein (CRISP3) "is present in exocrine secretions and in secretory granules of neutrophilic granulocytes and is believed to play a role in innate immunity." CRISP3 has a relatively high content in human plasma.
"The A1BG-CRISP-3 complex is noncovalent with a 1:1 stoichiometry and is held together by strong electrostatic forces." "Similar [complex formation] between toxins from snake venom and A1BG-like plasma proteins ... inhibits the toxic effect of snake venom metalloproteinases or myotoxins and protects the animal from envenomation."
"Opossums [such as shown at top of the article] have a remarkably robust immune system, and show partial or total immunity to the venom of rattlesnakes, [Agkistrodon piscivorus] cottonmouths, and other [Crotalinae] pit vipers."
As indicated in the diagram above, there are eight exons (red rectangles) and seven introns (red lines) between the 5' untranslated region (UTR, 5'-UTR) and the 3'-UTR.
When A1BG is transcribed by the RNA polymerase II holoenzyme, the pre-mRNA (messenger RNA, mRNA) consists of eight exons and seven introns which are spliced to yield the final mRNA. A1BG is a minus strand transcription. The included nucleotides as numbered in the human genome go from 3'-58858172 to 58864864-5' inclusive and are so transcribed. When the mRNA template 5'-58858172 to 58864864-3' is used to create the protein, the translation proceeds 3'-58864864 to 58858172-5' rather than 5'-58858172 to 58864864-3'.
Eukaryotes have a double helix of DNA surrounded by an epigenome.
"[A] single strand of DNA [has a positive sense (+)] if an RNA version of the same sequence is translated or translatable into protein. Its complementary strand is called antisense (or negative (-) sense)."
"The two complementary strands of double-stranded DNA (dsDNA) are usually differentiated as the "sense" strand and the "antisense" strand. ... [T]he DNA antisense strand ... serves as the source for the protein code, because, with bases complementary to the DNA sense strand, it is used as a template for the mRNA."
"The only real biological information that is important for labeling strands is the location of the 5' phosphate group and the 3' hydroxyl group because these ends determine the direction of transcription and translation."
From a molecular point of view, a transcription complex may not have an obvious way to choose the "antisense" strand from the "sense" strand. It also may not have an obvious way to chose the direction of transcription once a strand has been chosen as the "antisense" strand.
To choose which strand, then which direction, may require chemical cues. A1BG has two sections of nucleotides between itself and neighboring genes:
- between ZSCAN22 and A1BG and
- between ZNF497 and A1BG.
The NCBI gene database conveniently labels the genomic context with increasing nucleotide numbers in the direction of transcription 3'-5' on the template strand. When viewing the genomic regions, transcripts, and products under tools, click on "Sequence Text View". The database informs you which strand you are looking at (negative strand) or by "Flip Strands" the (positive strand).
Eukaryotic transcription of the A1BG "protein-coding gene is preceded by ...
- decondensation of the locus,
- nucleosome remodeling,
- histone modifications,
- binding of transcriptional activators and coactivators to enhancers and promoters, and
- recruitment of the basal transcription machinery to the core promoter."
"A stable preinitiation complex can form in vitro on TATA-dependent core promoters by association of the basal factors in the following order: TFIID/TFIIA, TFIIB, RNA polymerase II/TFIIF, TFIIE, and then TFIIH."
The A1BG promoter is a region of the DNA adjacent to the gene itself that facilitates gene transcription. Within the overall promoter are response elements which provide a secure initial binding site for the RNA polyermase II holoenzyme.
Positions in the promoter are designated relative to the transcription start site (N+1, TSS), with positions upstream having negative numbers counting back from -1 away from the TSS, for example, -100 is 100 nucleotides (nts) before 3'-58858172 (specifically pre-3' at 58858072).
"In focused transcription, there is either a single major transcription start site or several start sites within a narrow region of several nucleotides. Focused transcription is the predominant mode of transcription in simpler organisms."
"Focused transcription initiation occurs in all organisms, and appears to be the predominant or exclusive mode of transcription in simpler organisms."
"In vertebrates, focused transcription tends to be associated with regulated promoters".
"The analysis of focused core promoters has led to the discovery of sequence motifs such as the TATA box, BREu (upstream TFIIBrecognition element), Inr (initiator), MTE (motif ten element), DPE (downstream promoter element), DCE (downstream core element), and XCPE1 (Xcore promoter element 1) [...]."
"In dispersed transcription, there are several weak transcription start sites over a broad region of about 50 to 100 nucleotides. Dispersed transcription is the most common mode of transcription in vertebrates. For instance, dispersed transcription is observed in about two-thirds of human genes."
In vertebrates, "dispersed transcription is typically observed in constitutive promoters in CpG islands."
A distal promoter is a portion of the promoter for a particular gene. This distal sequence upstream of the gene is a region of DNA that may contain additional regulatory elements, often with a weaker influence than the proximal promoter.
"[T]he distal promoter ... can range several thousands of nucleotides upstream of the TSS and contains additional regulatory elements called enhancers and silencers."
An AGC box has the consensus sequence 3'-AGCCGCC-5' in the direction of transcription. It may also occur as 3'-TCGGCGG-5' in the direction of transcription, or inverted which has been reported: 3'-CCGCCGA-5' and 3'-GGCGGCT-5'. Ideally, each of these four should be tested on each of the four possible transcription directions.
A1BG has four possible transcription directions:
- on the negative strand from ZSCAN22 to A1BG,
- on the positive strand from ZSCAN22 to A1BG,
- on the negative strand from ZNF497 to A1BG, and
- on the positive strand from ZNF497 to A1BG.
For each transcription promoter that interacts directly with RNA polymerase II holoenzyme, the four possible consensus sequences need to be tested on the four possible transcription directions, even though some genes may only be transcribed from the negative strand in the 3'-direction on the transcribed strand.
For the Basic programs (starting with SuccessablesAGC.bas) written to compare nucleotide sequences with the sequences on either the template strand (-), or coding strand (+), of the DNA, in the negative direction (-), or the positive direction (+), the programs are, are looking for, and found:
- negative strand in the negative direction is SuccessablesAGC--.bas, looking for 3'-AGCCGCC-5', 0,
- negative strand in the positive direction is SuccessablesAGC-+.bas, looking for 3'-AGCCGCC-5', 0,
- positive strand in the negative direction is SuccessablesAGC+-.bas, looking for 3'-AGCCGCC-5', 0,
- positive strand in the positive direction is SuccessablesAGC++.bas, looking for 3'-AGCCGCC-5', 0,
- complement, negative strand, negative direction is SuccessablesAGCc--.bas, looking for 3'-TCGGCGG-5', 0,
- complement, negative strand, positive direction is SuccessablesAGCc-+.bas, looking for 3'-TCGGCGG-5', 0,
- complement, positive strand, negative direction is SuccessablesAGCc+-.bas, looking for 3'-TCGGCGG-5', 0,
- complement, positive strand, negative direction is SuccessablesAGCc++.bas, looking for 3'-TCGGCGG-5', 0,
- inverse complement, negative strand, negative direction is SuccessablesAGCci--.bas, looking for 3'-GGCGGCT-5', 0,
- inverse complement, negative strand, positive direction is SuccessablesAGCci-+.bas, looking for 3'-GGCGGCT-5', 0,
- inverse complement, positive strand, negative direction is SuccessablesAGCci+-.bas, looking for 3'-GGCGGCT-5', 1, 3'-GGCGGCT-5', 1754,
- inverse complement, positive strand, positive direction is SuccessablesAGCci++.bas, looking for 3'-GGCGGCT-5', 0,
- inverse, negative strand, negative direction, is SuccessablesAGCi--.bas, looking for 3'-CCGCCGA-5', 1, 3'-CCGCCGA-5', 1754,
- inverse, negative strand, positive direction, is SuccessablesAGCi-+.bas, looking for 3'-CCGCCGA-5', 0,
- inverse, positive strand, negative direction, is SuccessablesAGCi+-.bas, looking for 3'-CCGCCGA-5', 0,
- inverse, positive strand, positive direction, is SuccessablesAGCi++.bas, looking for 3'-CCGCCGA-5', 0.
"An E-box (Enhancer Box) is a DNA sequence which usually lies upstream of a gene in a promoter region. It is a transcription factor binding site where the specific sequence of DNA, CANNTG, is recognized by proteins that can bind to it to help initiate its transcription. Once transcription factors bind to promoters, they allow for association of other enzymes which will copy the DNA into mRNA. The consensus sequence for the E-box element is CANNTG, with a palindromic canonical sequence of CACGTG. Transcription factors containing the basic helix-loop-helix protein structural motif typically bind to E-boxes or related variant sequences and enhance transcription of the downstream gene."
For the Basic programs (starting with SuccessablesE.bas) written to compare nucleotide sequences with the sequences on either the template strand (-), or coding strand (+), of the DNA, in the negative direction (-), or the positive direction (+), the programs are looking for, and found:
- negative strand in the negative direction is SuccessablesE--.bas, looking for 3'-C-A-(A/C/G/T)-(A/C/G/T)-T-G-5', 4, 3'-CACATG-5' at 324, 3'-CACATG-5' at 797, 3'-CACATG-5' at 2213, and 3'-CACATG-5' at 2342,
- negative strand in the positive direction is SuccessablesE-+.bas, looking for 3'-C-A-(A/C/G/T)-(A/C/G/T)-T-G-5', 10, 3'-CACATG-5' at 141, 3'-CACATG-5' at 268, 3'-CACATG-5' at 303, 3'-CACATG-5' at 388, 3'-CACATG-5' at 461, 3'-CACATG-5' at 517, 3'-CACATG-5' at 714, 3'-CACATG-5' at 782, 3'-CACATG-5' at 925, 3'-CACATG-5' at 931,
- positive strand in the negative direction is SuccessablesE+-.bas, looking for 3'-C-A-(A/C/G/T)-(A/C/G/T)-T-G-5', 15, 3'-CACATG-5' at 123, 3'-CACATG-5' at 200, 3'-CACATG-5' at 952, 3'-CACATG-5' at 1206, 3'-CACATG-5' at 1849, 3'-CACATG-5' at 1952, 3'-CACATG-5' at 2151, 3'-CACATG-5' at 2276, 3'-CACATG-5' at 2322, 3'-CACATG-5' at 2533, 3'-CACATG-5' at 2613, 3'-CACATG-5' at 2667, 3'-CACATG-5' at 2751, 3'-CACATG-5' at 2783, 3'-CACATG-5' at 4106, 3'-CACATG-5' at 4116, 3'-CACATG-5' at 4247,
- positive strand in the positive direction is SuccessablesE++.bas, looking for 3'-C-A-(A/C/G/T)-(A/C/G/T)-T-G-5', 0,
- complement, negative strand, negative direction is SuccessablesEc--.bas, looking for 3'-G-T-(A/C/G/T)-(A/C/G/T)-A-C-5', 17, 3'-GTGTAC-5' at 123, 3'-GTGTAC-5' at 200, 3'-GTGTAC-5' at 952, 3'-GTGTAC-5' at 1206, 3'-GTGTAC-5' at 1849, 3'-GTGTAC-5' at 1952, 3'-GTGTAC-5' at 2151, 3'-GTGTAC-5' at 2276, 3'-GTGTAC-5' at 2322, 3'-GTGTAC-5' at 2533, 3'-GTGTAC-5' at 2613, 3'-GTGTAC-5' at 2667, 3'-GTGTAC-5' at 2751, 3'-GTGTAC-5' at 2783, 3'-GTGTAC-5' at 4106, 3'-GTGTAC-5' at 4116, 3'-GTGTAC-5' at 4247,
- complement, negative strand, positive direction is SuccessablesEc-+.bas, looking for 3'-G-T-(A/C/G/T)-(A/C/G/T)-A-C-5', 0,
- complement, positive strand, negative direction is SuccessablesEc+-.bas, looking for 3'-G-T-(A/C/G/T)-(A/C/G/T)-A-C-5', 4, 3'-GTGTAC-5' at 324, 3'-GTGTAC-5' at 797, 3'-GTGTAC-5' at 2213, 3'-GTGTAC-5' at 2342,
- complement, positive strand, positive direction is SuccessablesEc++.bas, looking for 3'-G-T-(A/C/G/T)-(A/C/G/T)-A-C-5', 10, 3'-GTGTAC-5', at 141, 3'-GTGTAC-5', at 268, 3'-GTGTAC-5', at 303, 3'-GTGTAC-5', at 388, 3'-GTGTAC-5', at 461, 3'-GTGTAC-5', at 517, 3'-GTGTAC-5', at 714, 3'-GTGTAC-5', at 782, 3'-GTGTAC-5', at 925, 3'-GTGTAC-5', at 931,
- inverse complement, negative strand, negative direction is SuccessablesEci--.bas, looking for 3'-C-A-(A/C/G/T)-(A/C/G/T)-T-G-5', 4, 3'-CACATG-5' at 324, 3'-CACATG-5' at 797, 3'-CACATG-5' at 2213, and 3'-CACATG-5' at 2342,
- inverse complement, negative strand, positive direction is SuccessablesEci-+.bas, looking for 3'-C-A-(A/C/G/T)-(A/C/G/T)-T-G-5', 10, 3'-CACATG-5' at 141, 3'-CACATG-5' at 268, 3'-CACATG-5' at 303, 3'-CACATG-5' at 388, 3'-CACATG-5' at 461, 3'-CACATG-5' at 517, 3'-CACATG-5' at 714, 3'-CACATG-5' at 782, 3'-CACATG-5' at 925, 3'-CACATG-5' at 931,
- inverse complement, positive strand, negative direction is SuccessablesEci+-.bas, looking for 3'-C-A-(A/C/G/T)-(A/C/G/T)-T-G-5', 15, 3'-CACATG-5' at 123, 3'-CACATG-5' at 200, 3'-CACATG-5' at 952, 3'-CACATG-5' at 1206, 3'-CACATG-5' at 1849, 3'-CACATG-5' at 1952, 3'-CACATG-5' at 2151, 3'-CACATG-5' at 2276, 3'-CACATG-5' at 2322, 3'-CACATG-5' at 2533, 3'-CACATG-5' at 2613, 3'-CACATG-5' at 2667, 3'-CACATG-5' at 2751, 3'-CACATG-5' at 2783, 3'-CACATG-5' at 4106, 3'-CACATG-5' at 4116, 3'-CACATG-5' at 4247,
- inverse complement, positive strand, positive direction is SuccessablesEci++.bas, looking for 3'-C-A-(A/C/G/T)-(A/C/G/T)-T-G-5', 0,
- inverse, negative strand, negative direction, is SuccessablesEi--.bas, looking for 3'-G-T-(A/C/G/T)-(A/C/G/T)-A-C-5', 17, 3'-GTGTAC-5' at 123, 3'-GTGTAC-5' at 200, 3'-GTGTAC-5' at 952, 3'-GTGTAC-5' at 1206, 3'-GTGTAC-5' at 1849, 3'-GTGTAC-5' at 1952, 3'-GTGTAC-5' at 2151, 3'-GTGTAC-5' at 2276, 3'-GTGTAC-5' at 2322, 3'-GTGTAC-5' at 2533, 3'-GTGTAC-5' at 2613, 3'-GTGTAC-5' at 2667, 3'-GTGTAC-5' at 2751, 3'-GTGTAC-5' at 2783, 3'-GTGTAC-5' at 4106, 3'-GTGTAC-5' at 4116, 3'-GTGTAC-5' at 4247,
- inverse, negative strand, positive direction, is SuccessablesEi--.bas, looking for 3'-G-T-(A/C/G/T)-(A/C/G/T)-A-C-5', 0,
- inverse, positive strand, negative direction, is SuccessablesEi+-.bas, looking for 3'-G-T-(A/C/G/T)-(A/C/G/T)-A-C-5', 4, 3'-GTGTAC-5' at 324, 3'-GTGTAC-5' at 797, 3'-GTGTAC-5' at 2213, 3'-GTGTAC-5' at 2342,
- inverse, positive strand, positive direction, is SuccessablesEi++.bas, looking for 3'-G-T-(A/C/G/T)-(A/C/G/T)-A-C-5', 10, 3'-GTGTAC-5', at 141, 3'-GTGTAC-5', at 268, 3'-GTGTAC-5', at 303, 3'-GTGTAC-5', at 388, 3'-GTGTAC-5', at 461, 3'-GTGTAC-5', at 517, 3'-GTGTAC-5', at 714, 3'-GTGTAC-5', at 782, 3'-GTGTAC-5', at 925, 3'-GTGTAC-5', at 931.
A 'proximal promoter' is a proximal sequence upstream of the gene, specifically the transcription start site (TSS) of the gene, that tends to contain primary regulatory elements. It is approximately 250 nucleotides (nts) upstream (signified by a negative sign before the number of nucleotides, eg. -250 nts) of the TSS and has specific transcription factor binding sites.
"[T]he proximal promoter [is] a region containing several regulatory elements, which ranges up to a few hundred nucleotides upstream of the TSS".
"CArG box [CC(A/T)6GG] DNA [consensus] sequences present within the promoters of SMC genes play a pivotal role in controlling their transcription".
"Serum response factor (SRF) controls [smooth muscle cell] SMC gene transcription via binding to CArG box DNA sequences found within genes that exhibit SMC-restricted expression."
"SMC genes examined in this study display SMC-specific histone modifications at the 5′-CArG boxes."
"The SRF-CArG association is required for transcriptional activation of SMC genes [...] the SMC genes examined in this study display SMC-specific histone modifications at the 5′-CArG boxes. [...] enrichment of H4 and H3 acetylation [...] were relatively low from positions –2,800 to –1,600 in the 5′ region. However, at position –1,600 to –1,200, there was a sharp rise in these modifications, which was increased even further at +400 in the coding region. We observed similar patterns for H3K4dMe and H3 Lys79 di-methylation [...]. SRF, TFIID, and RNA polymerase II displayed enrichments that were consistent with the positions of the CArG boxes, TATA box, and coding region, respectively".
For the Basic programs (starting with SuccessablesCArG.bas) written to compare nucleotide sequences with the sequences on either the template strand (-), or coding strand (+), of the DNA, in the negative direction (-), or the positive direction (+), the programs are, are looking for, and found:
- negative strand in the negative direction (from ZSCAN22 to A1BG) is SuccessablesCArG--.bas, looking for 3'-CC(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)GG-5', 0,
- negative strand in the positive direction (from ZNF497 to A1BG) is SuccessablesCArG-+.bas, looking for 3'-CC(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)GG-5', 0,
- positive strand in the negative direction is SuccessablesCArG+-.bas, looking for 3'-CC(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)GG-5', 0,
- positive strand in the positive direction is SuccessablesCArG++.bas, looking for 3'-CC(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)GG-5', 0,
- complement, negative strand, negative direction is SuccessablesCArGc--.bas, looking for 3'-GG(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)CC-5', 0,
- complement, negative strand, positive direction is SuccessablesCArGc-+.bas, looking for 3'-GG(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)CC-5', 0,
- complement, positive strand, negative direction is SuccessablesCArGc+-.bas, looking for 3'-GG(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)CC-5', 0,
- complement, positive strand, positive direction is SuccessablesCArGc++.bas, looking for 3'-GG(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)CC-5', 0,
- inverse complement, negative strand, negative direction is SuccessablesCArGci--.bas, looking for 3'-CC(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)GG-5', 0,
- inverse complement, negative strand, positive direction is SuccessablesCArGci-+.bas, looking for 3'-CC(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)GG-5', 0,
- inverse complement, positive strand, negative direction is SuccessablesCArGci+-.bas, looking for 3'-CC(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)GG-5', 0,
- inverse complement, positive strand, positive direction is SuccessablesCArGci++.bas, looking for 3'-CC(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)GG-5', 0,
- inverse, negative strand, negative direction, is SuccessablesCArGi--.bas, looking for 3'-GG(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)CC-5', 0,
- inverse, negative strand, positive direction, is SuccessablesCArGi-+.bas, looking for 3'-GG(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)CC-5', 0,
- inverse, positive strand, negative direction, is SuccessablesCArGi+-.bas, looking for 3'-GG(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)CC-5', 0,
- inverse, positive strand, positive direction, is SuccessablesCArGi++.bas, looking for 3'-GG(A/T)(A/T)(A/T)(A/T)(A/T)(A/T)CC-5', 0.
For the Basic programs (starting with SuccessablesHY.bas) written to compare nucleotide sequences with the sequences on either the template strand (-), or coding strand (+), of the DNA, in the negative direction (-), or the positive direction (+), the programs are, are looking for, and found:
- negative strand in the negative direction is SuccessablesHY--.bas, looking for 3'-TG(A/T)GGG-5', 1, 3'-TGTGGG-5' at 749,
- negative strand in the positive direction is SuccessablesHY-+.bas, looking for 3'-TG(A/T)GGG-5', 4, 3'-TGTGGG-5' at 11, 3'-TGAGGG-5' at 40, 3'-TGAGGG-5' at 440, 3'-TGTGGG-5' at 956,
- positive strand in the negative direction is SuccessablesHY+-.bas, looking for 3'-TG(A/T)GGG-5', 5, 3'-TGAGGG-5' at 88, 3'-TGAGGG-5' at 2699, 3'-TGAGGG-5' at 3652, 3'-TGTGGG-5' at 3712, 3'-TGAGGG-5' at 4558,
- positive strand in the positive direction is SuccessablesHY++.bas, looking for 3'-TG(A/T)GGG-5', 1, 3'-TGTGGG-5' at 94,
- complement, negative strand, negative direction is SuccessablesHYc--.bas, looking for 3'-AC(A/T)CCC-5', 0,
- complement, negative strand, positive direction is SuccessablesHYc-+.bas, looking for 3'-AC(A/T)CCC-5', 1, 3'-ACACCC-5', 94,
- complement, positive strand, negative direction is SuccessablesHYc+-.bas, looking for 3'-AC(A/T)CCC-5', 1 , 3'-ACACCC-5', 749,
- complement, positive strand, positive direction is SuccessablesHYc++.bas, looking for 3'-AC(A/T)CCC-5', 4, 3'-ACACCC-5', 11, 3'-ACTCCC-5', 40, 3'-ACTCCC-5', 440, 3'-ACACCC-5', 956,
- inverse complement, negative strand, negative direction is SuccessablesHYci--.bas, looking for 3'-CCC(A/T)CA-5', 4, 3'-CCCTCA-5', 2702, 3'-CCCACA-5', 3184, 3'-CCCTCA-5', 3889, 3'-CCCTCA-5', 4498,
- inverse complement, negative strand, positive direction is SuccessablesHYci-+.bas, looking for 3'-CCC(A/T)CA-5', 1, 3'-CCCTCA-5', 64,
- inverse complement, positive strand, negative direction is SuccessablesHYci+-.bas, looking for 3'-CCC(A/T)CA-5', 0,
- inverse complement, positive strand, positive direction is SuccessablesHYci++.bas, looking for 3'-CCC(A/T)CA-5', 0,
- inverse, negative strand, negative direction, is SuccessablesHYi--.bas, looking for 3'-GGG(A/T)GT-5', 0,
- inverse, negative strand, positive direction, is SuccessablesHYi-+.bas, looking for 3'-GGG(A/T)GT-5', 0,
- inverse, positive strand, negative direction, is SuccessablesHYi+-.bas, looking for 3'-GGG(A/T)GT-5', 4, 3'-GGGAGT-5', 2702, 3'-GGGTGT-5', 3184, 3'-GGGAGT-5', 3889, 3'-GGGAGT-5', 4498,
- inverse, positive strand, positive direction, is SuccessablesHYi++.bas, looking for 3'-GGG(A/T)GT-5', 1, 3'-GGGAGT-5', 64.
Metal responsive elements
"[T]hree potential metal response elements (MREs) [overlap] the E-boxes in the repeats, (TGCACGT with TGCRCNC being the consensus sequence; 17,18)."
The reproducible consensus sequence seems to be 3'-TGCRCNC-5', specifically 3'-TGC-(A/G)-C-(A/C/G/T)-C-5'.
For the Basic programs (starting with SuccessablesMRE.bas) written to compare nucleotide sequences with the sequences on either the template strand (-), or coding strand (+), of the DNA, in the negative direction (-), or the positive direction (+), the programs are, are looking for, and found:
- negative strand in the negative direction is SuccessablesMRE--.bas, looking for 3'-T-G-C-(A/G)-C-(A/C/G/T)-C-5', 0,
- negative strand in the positive direction is SuccessablesMRE-+.bas, looking for 3'-T-G-C-(A/G)-C-(A/C/G/T)-C-5', 0,
- positive strand in the negative direction is SuccessablesMRE+-.bas, looking for 3'-T-G-C-(A/G)-C-(A/C/G/T)-C-5', 7, 3'-TGCGCTC-5', 891, 3'-TGCACTC-5', 1348, 3'-TGCACTC-5', 2001, 3'-TGCACTC-5', 2427, 3'-TGCACCC-5', 2762, 3'-TGCACTC-5', 3290, 3'-TGCACTC-5', 4341,
- positive strand in the positive direction is SuccessablesMRE++.bas, looking for 3'-T-G-C-(A/G)-C-(A/C/G/T)-C-5', 1, 3'-TGCACAC-5', 9,
- complement, negative strand, negative direction is SuccessablesMREc--.bas, looking for 3'-A-C-G-(T/C)-G-(A/C/G/T)-G-5', 7, 3'-ACGCGAG-5', 891, 3'-ACGTGAG-5', 1348, 3'-ACGTGAG-5', 2001, 3'-ACGTGAG-5', 2427, 3'-ACGTGGG-5', 2762, 3'-ACGTGAG-5', 3290, 3'-ACGTGAG-5', 4341,
- complement, negative strand, positive direction is SuccessablesMREc-+.bas, looking for 3'-A-C-G-(T/C)-G-(A/C/G/T)-G-5', 1, 3'-ACGTGTG-5', 9,
- complement, positive strand, negative direction is SuccessablesMREc+-.bas, looking for 3'-A-C-G-(T/C)-G-(A/C/G/T)-G-5', 0,
- complement, positive strand, negative direction is SuccessablesMREc++.bas, looking for 3'-A-C-G-(T/C)-G-(A/C/G/T)-G-5', 0,
- inverse complement, negative strand, negative direction is SuccessablesMREci--.bas, looking for 3'-G-(A/C/G/T)-G-(T/C)-G-C-A-5', 2, 3'-GTGTGCA-5', 531, 3'-GAGTGCA-5', 1772,
- inverse complement, negative strand, positive direction is SuccessablesMREci-+.bas, looking for 3'-G-(A/C/G/T)-G-(T/C)-G-C-A-5', 1, 3'-GGGTGCA-5', 444,
- inverse complement, positive strand, negative direction is SuccessablesMREci+-.bas, looking for 3'-G-(A/C/G/T)-G-(T/C)-G-C-A-5', 2, 3'-GAGTGCA-5', 1470, 3'-GTGTGCA-5', 2863,
- inverse complement, positive strand, positive direction is SuccessablesMREci++.bas, looking for 3'-G-(A/C/G/T)-G-(T/C)-G-C-A-5', 0,
- inverse, negative strand, negative direction, is SuccessablesMREi--.bas, looking for 3'-C-(A/C/G/T)-C-(A/G)-C-G-T-5', 2, 3'-CTCACGT-5', 1470, 3'-CACACGT-5', 2863,
- inverse, negative strand, positive direction, is SuccessablesMREi--.bas, looking for 3'-C-(A/C/G/T)-C-(A/G)-C-G-T-5', 0,
- inverse, positive strand, negative direction, is SuccessablesMREi+-.bas, looking for 3'-C-(A/C/G/T)-C-(A/G)-C-G-T-5', 2, 3'-CACACGT-5', 531, 3'-CTCACGT-5', 1772,
- inverse, positive strand, positive direction, is SuccessablesMREi++.bas, looking for 3'-C-(A/C/G/T)-C-(A/G)-C-G-T-5', 1, 3'-CCCACGT-5', 444.
A1BG is on chromosome 19 between the genes for ZSCAN22 and ZNF497. Before each untranslated region are nucleotides between the genes.
Between ZNF497 and A1BG are 1006 nts before the TSS from this direction. Between ZSCAN22 and A1BG there are 4618 nts.
Depending on which direction the RNA polymerase II holoenzyme transcribes from is the exact nt of the transcription start site (TSS). For transcription from the ZNF497 direction the TSS sits among the local nts as follows: TTGG+1GGC. For transcription from the ZSCAN22 direction, the TSS sits among TGAA+1ACT.
NCBI at the National Institutes of Health includes these in between nucleotides as well as those for each gene. NCBI has predetermined whether the strand is the coding strand (positive strand) or the template strand (negative strand).
The nucleotides between ZNF497 and A1BG as A1BG is approached from ZNF497 on the negative strand are 3'-58865723:
TGAGTGGGGAGGATGCAGTGCAGGGGGCAGATGAGGGCTAGGCGGTTGCCCTGGGCCCTCACACT CGTAGCGGAGCTAGGCTGGGACACCCAGGGTGGGGACCAGACCTCCCCGGGTGGGAATGACAGGA TGTCCATGGAGGCTGAGTGTGAAAGCACCACGGTCTCACCCCTGTCCTGTTCCATCCCAACAGGCT GTGGTGAGGAGAGGGGGAGGCAGGGGAAGCGGGAGGCCTGGCCTCCAGGCAGCAGGCTATAGCCA CATGAGTGACCACCAGCAGCTCAGGTAACTGAGCACATGTCACGGGTAGGCCTGGGAAGCGCAGG TCTCAGCTGAATGACCTGGGTGGAAATCCGACTCCAGAGCCGTGGTGGGTCACACCATGCAGAATG AACCAGTGATGGAGAAGGAACCACAGTCCTCAGGAAGAGTGAGGGTGCACCTCCAGACAGCCCAT GTGAGGGCAACCGCAGAAAGTCTGAAAAGAGGTGAACCCCACCTTTGGTGTCACATGTGCAGTGTG GTGTGACAGGGAGGGGCTCGCTGGGCTTCAGCCCCGGCACTCTCCACTTGACCTCAGCAGCTCCAG GTAGAGTGGGGAGAACTCAGCGTCTCCTTCTAGAACAGGTTCTAGGATCCATCACTGAAATGAGGA TGAGGTGGTTTTAACATCATTTTATCACTCTTGATTTAGTTTATTAATCATACATGATTATTGATTAT AATTGTTGCTGGGCATCCTGAGGCCTCAGAAGTTCACCCTTTGCCCTGACCCCATGGGGGCCCTGC CCCCGCCTTCCGGGAAGGACAAACACGGGAAGAGGTCAGTGCCCGAGCCACCCCACCGCCCTCCC TTGG+1 :58864973-5'.
The nucleotides between ZSCAN22 and A1BG as A1BG is approached from ZSCAN22 on the negative strand are 3'-58853715:
TTTAAGATTGTCTGACTTAAAGAAAAACCTGGTCGGTATACAAGAAATCTTTTCTATGTGGATTTTG TTCCTATACCCTTCAACTCCCGTTTCCCTATCTTTTCCTATATGTTCCATCCGTACTTTGACTTCTTT CGACTACCTCGACGTAATCAGCGCGTTTTGTCTGTAATTCCATATTTTCGTAAAATTCTTAGTACCC CAGTGATACAAAAATATTTTCTTTGTTAGATAATCCTTCTACATTATCAAGTTTTGGTCCGTGTATT ATACTCAGAACATCTTGTCTTAGTGTCACTCTTTGACTGCTTTGGAATTCACATGAACCTTCACGAT TGTGCAAGAAATACTATCTTTTGTAAACTTCTCCGGCCCACGCCACCGAGGGTGGACATTAGGGTC GTGAAACCCTCCGGTTCTGTCCGCCTAGTGCTCCAGTCCTCACGCTCCGTTCGGACCCGTTGTATC ACTTTGACAGATGTTTTTTATGCTTTTAATCGGTCGGACCCGGCCCGTGTCACCTAGTGTGCATTAA GGTCGTGAAACCCTCCGGTTCTGTCCGTCCAGTGCTCCAGTCCTCTAACTCTAGTAGGACCGATTA TACCACACATTGGGGAAGAGATGATTTTTATGTTTTTTAACCGGTCCGTGCCACCGAGTGCGGACA TTAGGGTCGTGAAACCCTCCGGTTCCGTCCGCCTAGTGCTCCAGTCCTCAAGCTCTGGTCGGACTG GTCGCACCACTGTGGGGCAGAGATGATTTTTATGTTTTTTAATCGACCTACACCACCACACATGGAC ATTAGGGTCGATGATTCCTCCGACTCCGTCCTCTTAGCGAACTTGGGTCCTCCGCCTCCAACGCCA CTCGGTTCTAGTGTGGTAACGCGAGGTCGGACCCGTTGTCTCGCTCTGAGACAGAGTTTTTTTTTTT TTTTTTTTTCGGTCCGTACCGCCGTGTGCGGACATCTAGGTCGATTAGTCCTCCGACTCCGTCCTCT TAACGAACTTGGACCCTCCGTCTCCAACGTCACTCGGCTCTAACCCACTGAAGTGAGGTCGGAGCT GTTGTCTCACTCTGAGACAGAGTTTTTTTTTTTTTTTTTCCGACCCGTGTCACCGAGTGTGGACATT AGGGTCGTGAAACCCTGCGGCTCCACCCACCTAGTGGACTCAAGTGCTCAAACGCTGGTCGGACCG GTTGTACCACTTTGGGGCACAGATGTTTTTTAATCGGCCCGCACCACCGCCCACGGACATTAGGGT CGATGAGTCCTCCGACTCCGTCCTCTTAATGAACTTGGATCCTCCGTCTCCAACGTCACTCGGCTC TAACGTGGTAACGTGAGGTCAGACCCGTTATTCTCGTTTTGAGGTAAAGTTTTTGTTTGTTTTTTTT CTGAGTTGGGTCTTAAGAAAAAAAAAAAAAAAAACTCTACCTCAGAGCGAGACAACGGGTCCGACC TCACGTCACCACACTAGAGTCGAGTGACGTTCGAGGCGGAGGGCAGTTGGGTCTTAAGATATAGGT CACGTTTGTGTGAATTTCTTGCTTCCGTTTTATGTCTGTAGGAGTTTACTTTGTTTGGATTCTATATA TAAAGAACGGTCGTCTGAACGGACTTTTCTTTACGGTTTCCTTTGAGAACCATCTTCCCTTTACTAT GGTCTCCCTTTCGCCCTTGAAACCCTTAATTTACTATCATTATCTCTAACGTGTTAATAAAATAGAA ATTTTATACCGACCTCCGCCGACCCGCGCCACCGAGTGCAGACATTAGGGTCGTGAAACCCTCCGA CTCCACCCGCCTAGGGTTCCCGTCCTCTACCTCTGGTAGGACCGATTGTACAACTTTGGGGTAGAG ATGATTTTTATGTTTTTTTAATCGACCCGCACCACCACCCGAGGACATTAGGGTCGATGAACCCTCT GACTCCGTCCTCTTACCGTACTTGGACCCTCCGTCTCGAACGTCACTCGGCTCTAGTGCGGTGACG TGAGGTCGGACCCGCTGTCTCGTTCTGAGACAGAGTTTTTTTTTTTTTTTTTTTCTTTTTTTTACACC GACCTCCGGTCCACGTCACATTAGGATCGTGAAACCCTCCGACTCCACCTGTCTGGTGAACTCGAG TCCTCAAACTCTGGTTGTACCGCTTTATGACAGAGATGATTTCTATGTTTTTTACTGGCCCACGCCA CCGAGTGCGGTCATGAAACCCTCCGACTCCGCCAACCCTAGTGTTCCAGTCCTCAAACTCTGGTCG GACCTGTCGTACCACTTTGGGGTAGAGATGATTTTTATGTTTTTTGATCGGCCCGTACGACCACCCA CGGACATCATGGTCGATGAGGCCTCCGACTCCGTCCTCTTAACGAACTTGGACCGTCCGCCTCCAA CGTCACTCGGCTCTAGTGTGGTGACGTGAGGTCGGACCCGTTGTCTCACTCTAAGCCCTTTTTTTTT TTTTTTCGTTTTCGTTTGTTTGTTTTGAGTTATCATTCTTTTGTTTGTCCGGTCCGTGCCACCGAGTA CGGACATCAGGGTTGTGAAACCTTCCGACTCCGTCCACCTAGTGAACTCCAGTCCTCAACTTCTGG TCACACCGGTTGTACCACTTTGGGGGAGAGGTGATTTATATGTTTTTAGTCGGTCACACCACCGTG TACGGACATTAGGGTCGATGTGTCCTCCGACTCCCTCAACTTAGCGAACTTGGACCCGCCGCCTTC AACGTCACTCGACTTTAGTACGGTGACGTGGGGTCGGACCCGTTGTCTCGTACTGAGAGAGTTTTT CTTTCTTTTCTCTTCTTTTTTCTTTTCTCTTCTTTTTTCTTTTGTTGGGTTATAAAATTTCACACGTTT TATATATTTGTCTGTAAAGTAGTTTCTACGATATATCTACCGTTGATTCGTGAACCCCTTTTTTACGA ATTGTAGTAGTCTGTAATTCCTTTGCGTTCCTTTTGGTGATAATCTATACAGATGTATGGATAATCT TACCGATTTTATTTGAAAAATTTTTTGATTCGACCCCGACCCGCACCACCGAGTGGGGACATTAGGG TCGTGAAACCCTCCGACTCCGCCCACCTAGTGAACTCGAGTCCTCAACCTCTGGTCGGACCGGTGG GTTGTTCCACTTTGGGGTAGAGATGATTTTTGTATTTTTAATCGACCCACACCACCACCCACGGACA GTCGGGTCGATGAGTCCTCCGACTCCGTGCTCTTAGTGAACTTGGGTCCTCCATCTCCAACGACAC TCGGTTCTAGTGCGGTAACGTGAGGTCGGACCCGTTGTTCTCGTTTTAAGACAGAGTTTTTGTTTAT TTGTTCTTTTCCAAAATTTTTAACTATTTGGTGATCGTTCTTTCTCTCTCTCCTGTGTAGTCCGAACT CTCTTCACTGTAGTAGTATCTGACACGTCTGTAATTTTCCGTATCCGTATAATCCTTGATCTATAAT GATTCCGTCATTTGGTCTAGTGATCGTTTAAGCAACTTTTTGTGTTAAGTAGTTGATAACCAACTAT TATGACTATGCGTAGAAGACACACGGTCCCGGAACTCCGGGACGAGGTCCGTCTTTGAGCCGTCAC CAACCCTTCCGTAGTCTACAGTCTACCGTGTTCTCCTGAGTCTCGACTCCCTATTACCCTTTCTTGT GTCTCCTTAGGTCGGTAAAGGTGTCGCAGGTCGAGACGACACCCTCCGACCCTTGTCGGGTCGTGA TGGTGGGACCTGACCCTCCTGTTCTGGTGTTTTACGTCGAAGGGACTTGGAGGAGAACCACTACCC CAACTACACCAGCTCCATCTCCACTCATACAGACCTCGGAGTTCGTTGACGGGTATGGACGACCCT GGTCCGGCTCCACGGGTCCCTCATTCTCCGTCGTAGGACCTTCTCGTGTCTACTTTCTCCGGGACT CTTCACAACCAACCGGTCCACGACACCGAGTGTGGACATTAGGGTTGTGAAACCCTCCGACTCCGC CCTCCTAGTGAACTCGGGTTCTCAAGTTCTGGTCGGACCCGTTGTATCACTCTGAGTAGAGATGTT TTTTATTTATTATCTTTCTTTTTACACTCAACCGGTCCGTACCACCGAGTACGGACATCAGGGTCGA TGAGTCCTCCGACTCCACCCTCCTAGTGAATTCCGGTCCTCAAGTTCTGTTCGAACCCGTTGTGTCA CTCTGGGACAGATGTTTTTTATTATTAATCGGTCTGCACCGCTACGTACGGGTCCGAGGGTCGATG AACCCTCCGACTCCGTCCTCCTAGCGAACTCGGACCCTCCAGTTTTGACGTCACTCGGCCTGACGT TGTGACGTGAGGTCGGACCCACTGTCACACTCTGGGACAGAGTTTTTTCTTTTTTCTTTTCTTTTGA CACGAGAATTCTCGGTCAAGAGGTGAGGAGATGGAGTCCTCGGTGGGGTCTTGGGTAGGTGAA+1 :58858175-5'.
The nucleotides between ZNF497 and A1BG as A1BG is approached from ZNF497 on the positive strand are 3'-58865723:
ACTCACCCCTCCTACGTCACGTCCCCCGTCTACTCCCGATCCGCCAACGGGACCCGGGAGTGTGAG CATCGCCTCGATCCGACCCTGTGGGTCCCACCCCTGGTCTGGAGGGGCCCACCCTTACTGTCCTAC AGGTACCTCCGACTCACACTTTCGTGGTGCCAGAGTGGGGACAGGACAAGGTAGGGTTGTCCGACA CCACTCCTCTCCCCCTCCGTCCCCTTCGCCCTCCGGACCGGAGGTCCGTCGTCCGATATCGGTGTA CTCACTGGTGGTCGTCGAGTCCATTGACTCGTGTACAGTGCCCATCCGGACCCTTCGCGTCCAGAG TCGACTTACTGGACCCACCTTTAGGCTGAGGTCTCGGCACCACCCAGTGTGGTACGTCTTACTTGGT CACTACCTCTTCCTTGGTGTCAGGAGTCCTTCTCACTCCCACGTGGAGGTCTGTCGGGTACACTCCC GTTGGCGTCTTTCAGACTTTTCTCCACTTGGGGTGGAAACCACAGTGTACACGTCACACCACACTGT CCCTCCCCGAGCGACCCGAAGTCGGGGCCGTGAGAGGTGAACTGGAGTCGTCGAGGTCCATCTCAC CCCTCTTGAGTCGCAGAGGAAGATCTTGTCCAAGATCCTAGGTAGTGACTTTACTCCTACTCCACCA AAATTGTAGTAAAATAGTGAGAACTAAATCAAATAATTAGTATGTACTAATAACTAATATTAACAAC GACCCGTAGGACTCCGGAGTCTTCAAGTGGGAAACGGGACTGGGGTACCCCCGGGACGGGGGCGG AAGGCCCTTCCTGTTTGTGCCCTTCTCCAGTCACGGGCTCGGTGGGGTGGCGGGAGGGAACC+1 :58864973-5'.
The nucleotides between ZSCAN22 and A1BG as A1BG is approached from ZSCAN22 on the positive strand are 3'-58853715:
AAATTCTAACAGACTGAATTTCTTTTTGGACCAGCCATATGTTCTTTAGAAAAGATACACCTAAAAC AAGGATATGGGAAGTTGAGGGCAAAGGGATAGAAAAGGATATACAAGGTAGGCATGAAACTGAAGA AAGCTGATGGAGCTGCATTAGTCGCGCAAAACAGACATTAAGGTATAAAAGCATTTTAAGAATCAT GGGGTCACTATGTTTTTATAAAAGAAACAATCTATTAGGAAGATGTAATAGTTCAAAACCAGGCACA TAATATGAGTCTTGTAGAACAGAATCACAGTGAGAAACTGACGAAACCTTAAGTGTACTTGGAAGTG CTAACACGTTCTTTATGATAGAAAACATTTGAAGAGGCCGGGTGCGGTGGCTCCCACCTGTAATCC CAGCACTTTGGGAGGCCAAGACAGGCGGATCACGAGGTCAGGAGTGCGAGGCAAGCCTGGGCAAC ATAGTGAAACTGTCTACAAAAAATACGAAAATTAGCCAGCCTGGGCCGGGCACAGTGGATCACACG TAATTCCAGCACTTTGGGAGGCCAAGACAGGCAGGTCACGAGGTCAGGAGATTGAGATCATCCTGG CTAATATGGTGTGTAACCCCTTCTCTACTAAAAATACAAAAAATTGGCCAGGCACGGTGGCTCACGC CTGTAATCCCAGCACTTTGGGAGGCCAAGGCAGGCGGATCACGAGGTCAGGAGTTCGAGACCAGCC TGACCAGCGTGGTGACACCCCGTCTCTACTAAAAATACAAAAAATTAGCTGGATGTGGTGGTGTGT ACCTGTAATCCCAGCTACTAAGGAGGCTGAGGCAGGAGAATCGCTTGAACCCAGGAGGCGGAGGTT GCGGTGAGCCAAGATCACACCATTGCGCTCCAGCCTGGGCAACAGAGCGAGACTCTGTCTCAAAAA AAAAAAAAAAAAAAAGCCAGGCATGGCGGCACACGCCTGTAGATCCAGCTAATCAGGAGGCTGAGG CAGGAGAATTGCTTGAACCTGGGAGGCAGAGGTTGCAGTGAGCCGAGATTGGGTGACTTCACTCCA GCCTCGACAACAGAGTGAGACTCTGTCTCAAAAAAAAAAAAAAAAAGGCTGGGCACAGTGGCTCAC ACCTGTAATCCCAGCACTTTGGGACGCCGAGGTGGGTGGATCACCTGAGTTCACGAGTTTGCGACC AGCCTGGCCAACATGGTGAAACCCCGTGTCTACAAAAAATTAGCCGGGCGTGGTGGCGGGTGCCTG TAATCCCAGCTACTCAGGAGGCTGAGGCAGGAGAATTACTTGAACCTAGGAGGCAGAGGTTGCAGT GAGCCGAGATTGCACCATTGCACTCCAGTCTGGGCAATAAGAGCAAAACTCCATTTCAAAAACAAA CAAAAAAAAGACTCAACCCAGAATTCTTTTTTTTTTTTTTTTTGAGATGGAGTCTCGCTCTGTTGCCC AGGCTGGAGTGCAGTGGTGTGATCTCAGCTCACTGCAAGCTCCGCCTCCCGTCAACCCAGAATTCT ATATCCAGTGCAAACACACTTAAAGAACGAAGGCAAAATACAGACATCCTCAAATGAAACAAACCT AAGATATATATTTCTTGCCAGCAGACTTGCCTGAAAAGAAATGCCAAAGGAAACTCTTGGTAGAAGG GAAATGATACCAGAGGGAAAGCGGGAACTTTGGGAATTAAATGATAGTAATAGAGATTGCACAATT ATTTTATCTTTAAAATATGGCTGGAGGCGGCTGGGCGCGGTGGCTCACGTCTGTAATCCCAGCACT TTGGGAGGCTGAGGTGGGCGGATCCCAAGGGCAGGAGATGGAGACCATCCTGGCTAACATGTTGAA ACCCCATCTCTACTAAAAATACAAAAAAATTAGCTGGGCGTGGTGGTGGGCTCCTGTAATCCCAGC TACTTGGGAGACTGAGGCAGGAGAATGGCATGAACCTGGGAGGCAGAGCTTGCAGTGAGCCGAGA TCACGCCACTGCACTCCAGCCTGGGCGACAGAGCAAGACTCTGTCTCAAAAAAAAAAAAAAAAAAA GAAAAAAAATGTGGCTGGAGGCCAGGTGCAGTGTAATCCTAGCACTTTGGGAGGCTGAGGTGGACA GACCACTTGAGCTCAGGAGTTTGAGACCAACATGGCGAAATACTGTCTCTACTAAAGATACAAAAA ATGACCGGGTGCGGTGGCTCACGCCAGTACTTTGGGAGGCTGAGGCGGTTGGGATCACAAGGTCAG GAGTTTGAGACCAGCCTGGACAGCATGGTGAAACCCCATCTCTACTAAAAATACAAAAAACTAGCC GGGCATGCTGGTGGGTGCCTGTAGTACCAGCTACTCCGGAGGCTGAGGCAGGAGAATTGCTTGAAC CTGGCAGGCGGAGGTTGCAGTGAGCCGAGATCACACCACTGCACTCCAGCCTGGGCAACAGAGTG AGATTCGGGAAAAAAAAAAAAAAAGCAAAAGCAAACAAACAAAACTCAATAGTAAGAAAACAAACA GGCCAGGCACGGTGGCTCATGCCTGTAGTCCCAACACTTTGGAAGGCTGAGGCAGGTGGATCACTT GAGGTCAGGAGTTGAAGACCAGTGTGGCCAACATGGTGAAACCCCCTCTCCACTAAATATACAAAA ATCAGCCAGTGTGGTGGCACATGCCTGTAATCCCAGCTACACAGGAGGCTGAGGGAGTTGAATCGC TTGAACCTGGGCGGCGGAAGTTGCAGTGAGCTGAAATCATGCCACTGCACCCCAGCCTGGGCAACA GAGCATGACTCTCTCAAAAAGAAAGAAAAGAGAAGAAAAAAGAAAAGAGAAGAAAAAAGAAAACAA CCCAATATTTTAAAGTGTGCAAAATATATAAACAGACATTTCATCAAAGATGCTATATAGATGGCAA CTAAGCACTTGGGGAAAAAATGCTTAACATCATCAGACATTAAGGAAACGCAAGGAAAACCACTAT TAGATATGTCTACATACCTATTAGAATGGCTAAAATAAACTTTTTAAAAAACTAAGCTGGGGCTGGG CGTGGTGGCTCACCCCTGTAATCCCAGCACTTTGGGAGGCTGAGGCGGGTGGATCACTTGAGCTCA GGAGTTGGAGACCAGCCTGGCCACCCAACAAGGTGAAACCCCATCTCTACTAAAAACATAAAAATT AGCTGGGTGTGGTGGTGGGTGCCTGTCAGCCCAGCTACTCAGGAGGCTGAGGCACGAGAATCACTT GAACCCAGGAGGTAGAGGTTGCTGTGAGCCAAGATCACGCCATTGCACTCCAGCCTGGGCAACAAG AGCAAAATTCTGTCTCAAAAACAAATAAACAAGAAAAGGTTTTAAAAATTGATAAACCACTAGCAAG AAAGAGAGAGAGGACACATCAGGCTTGAGAGAAGTGACATCATCATAGACTGTGCAGACATTAAAA GGCATAGGCATATTAGGAACTAGATATTACTAAGGCAGTAAACCAGATCACTAGCAAATTCGTTGAA AAACACAATTCATCAACTATTGGTTGATAATACTGATACGCATCTTCTGTGTGCCAGGGCCTTGAGG CCCTGCTCCAGGCAGAAACTCGGCAGTGGTTGGGAAGGCATCAGATGTCAGATGGCACAAGAGGAC TCAGAGCTGAGGGATAATGGGAAAGAACACAGAGGAATCCAGCCATTTCCACAGCGTCCAGCTCTG CTGTGGGAGGCTGGGAACAGCCCAGCACTACCACCCTGGACTGGGAGGACAAGACCACAAAATGCA GCTTCCCTGAACCTCCTCTTGGTGATGGGGTTGATGTGGTCGAGGTAGAGGTGAGTATGTCTGGAG CCTCAAGCAACTGCCCATACCTGCTGGGACCAGGCCGAGGTGCCCAGGGAGTAAGAGGCAGCATC CTGGAAGAGCACAGATGAAAGAGGCCCTGAGAAGTGTTGGTTGGCCAGGTGCTGTGGCTCACACCT GTAATCCCAACACTTTGGGAGGCTGAGGCGGGAGGATCACTTGAGCCCAAGAGTTCAAGACCAGCC TGGGCAACATAGTGAGACTCATCTCTACAAAAAATAAATAATAGAAAGAAAAATGTGAGTTGGCCA GGCATGGTGGCTCATGCCTGTAGTCCCAGCTACTCAGGAGGCTGAGGTGGGAGGATCACTTAAGGC CAGGAGTTCAAGACAAGCTTGGGCAACACAGTGAGACCCTGTCTACAAAAAATAATAATTAGCCAG ACGTGGCGATGCATGCCCAGGCTCCCAGCTACTTGGGAGGCTGAGGCAGGAGGATCGCTTGAGCCT GGGAGGTCAAAACTGCAGTGAGCCGGACTGCAACACTGCACTCCAGCCTGGGTGACAGTGTGAGAC CCTGTCTCAAAAAAGAAAAAAGAAAAGAAAACTGTGCTCTTAAGAGCCAGTTCTCCACTCCTCTACC TCAGGAGCCACCCCAGAACCCATCCACTT+1 :58858175-5'.
According to one source, A1BG is transcribed from the direction of ZNF497: 3' - 58864890: CGAGCCACCCCACCGCCCTCCCTTGG+1GGCCTCATTGCTGCAGACGCTCACCCCAG ACACTCACTGCACCGGAGTGAGCGCGACCATCATG : 58866601-5', where the second 'G' at left of four Gs in a row is the TSS.
To obtain the nts between genes as well as the first several nucleotides within the first UTR, input the GeneID followed by [uid]. Under "Genomic context" in parentheses is (58858172..58864865, complement). These are the nucleotide numbers on the chromosome. The nearest neighboring gene ZNF497 has (58865723..58874214), where 58864801 to 58866601 (see above) are the nucleotides between the genes that contain the promoter for A1BG.
Transcription start sites
Notation: let the symbol PPP denote a promoter prediction program.
Notation: let the symbol CpG stand for cytosine - phosphodiester bond - guanine, which indicates that C and G are next to each other on the same DNA strand connected by phosphate.
"One important question is what the different PPPs are actually trying to predict. Some programs aim to predict the exact location of the promoter region of known protein-coding genes, while others focus on finding the transcription start site (TSS)." "Recent research has shown that there is often no single TSS, but rather a whole transcription start region (TSR) containing multiple TSSs that are used at different frequencies (Frith et al., 2008)." "The most recent large-scale validation of PPPs included more programs than any of the earlier studies and introduced for the first time an evaluation based on all experimentally determined TSSs in the human genome (Abeel et al., 2008a, 2008b)." "[T]he current state-of-the-art in promoter prediction is biased toward housekeeping genes that contain CpG islands."
Each of the currently described promoter elements is tested for possible occurrences between ZSCAN22 and A1BG on both the negative and positive strands, and between ZNF497 and A1BG on both strands, going from the neighboring gene toward A1BG.
A1BG has an E-box: 3'-CACATG-5' ending at -2118 nt (G) in the distal promoter region.
On the negative strand going from ZSCAN22 to A1BG, there are no MREs.
A1BG does not have an eIF4E basal element on the template strand between ZSCAN22 and A1BG TSS.
The only HY box upstream or downstream from A1BG ends (G) at -3711 nts (3'-TGTGGG-5') upstream from the TSS.
A1BG does not have a GC box in the transcription direction on either the positive or negative strand (ZSCAN22 to A1BG).
There are three B recognition elements (BREs) going along the negative strand from ZSCAN22 to A1BG: 3'-CCACGCC-5' out 380 nts from the last nt of the ending untranslated region for ZSCAN22, 3'-CCGCGCC-5' out 1762, and 3'-CCACGCC-5' out 2197 nts.
"The position in nucleotides (nts) relative to the transcription start site (TSS, +1)" is -35 for the BRE." None of the three BREs located are anywhere near the TSS at some 4600 nts out from ZSCAN22.
On the positive strand, in the nucleotide region between gene ZSCAN22 (NCBI GeneID: 342945) and A1BG (NCBI GeneID: 1) are 211 TATA box-like 8 nt long sequences. Of these,
- TATAAAAG occurs at 58853713 + 183 nts and
- TATAAAAG at 58853713 + 222. This is a TATA box found with some genes. But, the optimal TBP recognition sequence 3'-TATATAAG-5', does not occur.
- TATATAAA occurs only once at 2874 nts from the end of ZSCAN22. TBP is bound to this sequence and TATAAAAG above.
- TATAAA occurs seven times, with the closest one at 2874 nts from the end of ZSCAN22. "In virtually every RNA polymerase II-transcribed gene examined, the sequence TATAAA was present 25 to 30 nts upstream of the transcription start site."
A1BG does not have a TATA box in the core promoter region. There is the sequence 3'-TGCTATATAGATGGCAACTAAGCACTTGGGGAAAAAA-5' for which the first nt (T) is number 58856598 or 1574 nt upstream from the beginning of the 3'-UTR at 58858172. Unless another variant exists, -1574 nt from the beginning of the 3'-UTR is a large number of nts away from the TSS.
The closest TATA box-like sequence is 3'-CTCTTAAG-5' on the template strand at 4408 nts from the end of ZSCAN22, which is upstream from the core promoter.
The extra TATA boxes between ZSCAN22 and A1BG strongly suggest that there is at least one gene (or pseudogene) between ZSCAN22 and A1BG not currently in the NCBI database.
On the negative strand between ZNF497 and A1BG, there are no TATA boxes of the form 3’-TATA-A/T-A-A/T-A/G-5’.
For the negative strand going from ZSCAN22 to A1BG there are two TATA boxes: 3'-TATATATA-5' at 1600 nts and 3'-TATATAAA-5' at 1602 nts. These are way too far from the possible TSS in this direction.
A1BG does not have a TATA box. The closest 7 nucleotide dBRE is at -450 nts which is outside the core promoter in the distal promoter. The closest 6 nt dBRE of consensus sequence 3'-A/G-T-A/G/T-G/T-G/T-G/T-5' is also at -451 nts.
Consensus sequence 3'-T-A/G/T-G/T-G/T-G/T-G/T-5' has an expression at -108 nts with 3'-TGGGTG-5' in the proximal promoter.
Consensus sequence 3'-A/G-T-A/G/T-G/T-G/T-5' has one dBRE at -99 nts with 3'-GTGTG-5' in the proximal promoter.
3'-T-A/G/T-G/T-G/T-G/T-5' is another 5 nts consensus sequence that has a dBRE at -109 nts with 3'-TGGGT-5'.
Another 5 nts consensus sequence that has the same dBRE at -99 nts is 3'-GTGTG-5' in the proximal promoter.
A 4 nts consensus sequence has a dBRE at -100 nts is 3'-GTGT-5' also in the proximal promoter.
A second set of 4 nts consensus sequence dBREs are at -59 nts and +2 nts. The dBRE has not been reported to include the TSS.
A third 4 nts consensus sequence dBRE occurs at -43 nts, roughly just outside the core promoter, with another including the TSS and none in between.
There is no X core promoter element 1 between ZSCAN22 and A1BG on the template strand.
There is no motif ten element between ZSCAN22 and A1BG on the template strand.
There are two GAAC elements in the distal promoter between ZSCAN22 and A1BG.
A1BG does not have a GAAC element within 2-7 nucleotides of the TSS. The closest GAAC element, 3'-GAACT-5', is -999 nts from the TSS.
Along the negative strand from ZSCAN22 to A1BG there are at least 43 initiator elements, with the closest one 3'-TCACACT-5' ending at 4361 nts rather than including the TSS of A+1 at 4460 nts.
In the sequence along the positive strand of nucleotides from genes ZSCAN22 and A1BG, the sequence 3'-CCATCCACT-5' occurs only once, just before the transcription start site (TSS) of the A1BG gene. The DCE 3'-CTT-5' contains the TSS at its 5' end.
The TSS for A1BG has the following nts around it: 3'-CCATCCACTT+1TGAGGACAC-5'. Most genes studied early on contained an adenosine (A+1) at the TSS, a cytosine (C-1), and a few pyrimidines (Pys) surrounding these nts.
Usually the Inr contains the TSS. The sequence 3'-CCACTT+1T-5' does contain the TSS but not at A+1. The nearest other Inr ends -24 nt upstream from the TSS.
There are at least 15 Inrs between ZSCAN22 and A1BG.
The sequence 3'-CCACTT+1T-5' is also an Inr, where the TSS is indicated. But, the only DPE nearby 3'-GGACA-5' begins on the fourth nt (+5) after the TSS (+1), not precisely +28 to +32 relative to the TSS nucleotide. No other DPE is even close to this +28 to +32 window.
A1BG contains 3'-CTT+1-5'. This is an angiotensinogen core promoter element 1 (AGCE1).
The AGCE1 occurs at 3'-CTT+1-5' and 3'-ATC-5' which ends 5 nts upstream from the first and is the only AGCE1 within -25 and -1 nts of the TSS.
The downstream core element (DCE) SI 3'-CTT+1-5' contains the TSS but is not downstream of the TSS. Of the DCE SI elements, the closest is some 60 nts downstream from the TSS (3'-CTTC-5' ending at +69).
Of the DCE SII elements such as 3'-CTGT-5', there are none within +1 to +100 nts downstream. Element 3'-CTG-5' occurs starting at +32 nts, which is some +11 nts further downstream than expected and falls within the range for SIII. The element 3’-TGT-5’ has no occurrence within the TSS and +100 nts downstream.
DCE SIII elements (3’-AGC-5’) occur at +19 and +28 nts. The second DCE SIII is close but overlaps any likely nts for DCE SII and is supposed to be after any DCE SII. The DCE SII is unlikely to be used but the second DCE SIII may be close enough to act alone.
Along the negative strand from ZSCAN22 to A1BG and past the TSS, there are no DCE SIs of the type 3'-CTTC-5' past the TSS. Of the type 3'-CTT-5', only one occurs at 4552 nts or 92 nts past the TSS. For type 3'-TTC-5' of DCE SI the closest past is 3'-TTC-5' ending at 4504, or 44 nts past the TSS.
Type SII 3'-CTGT-5' has the closest one ending at 4468 nts and the next ending at 4507 nts.
Within the nucleotides of the negative strand going from gene ZSCAN22 to A1BG are at least 163 downstream promoter elements (DPEs), when using the minimal five-nucleotide consensus sequence. There are three DPEs near the required +28 (4487) to +32 (4491) nts from the TSS at 4460 nts from the end of ZSCAN22: 3'-GGTCG-5' at 4480, 3'-AGTCG-5' at 4489, and 3'-GGACC-5' at 4494 nts.
Each of the foregoing core promoter elements does not appear to be involved in the transcription of A1BG. The Inr does not contain the known TSS. The DCE is not supposed to contain the TSS, nor is AGCE1 although it is one nt off by containing it. Currently, the only way to default transcribe A1BG is by directing the transcription program directly to the known TSS.
When there is no TATA box in the promoter, a TAF binds sequence specifically, and forces the TBP to bind non-sequence specifically.
The 5' UTR for A1BG contains some 216 nts, depending upon the location of the TSS.
3’-T+1TGAGGACACGAGATCCCAGCCCACTCAGCCCTGGGAGTCCAAAGACATTTTAAACAGAGCCTCTCTTCACATTTA TTAATTCCTGGGAGGAATGAGGGAGGCTTCTCCAGCCCCCCAGAGACCCCGGCCTTGTGCTGCAACAGGAGGGGA GGGAGCCAGTCCAGAATCCCCGGCACTTCTGAGGACACCAACAGCACCCTGGGCCCGCGGCTGCA-5’
“The five prime untranslated region (5' UTR), can contain elements for controlling gene expression by way of regulatory elements. It begins at the transcription start site and ends one nucleotide (nt) before the start codon (usually AUG) of the coding region. ... The 5' UTR has a median length of ~150 nt in eukaryotes, but can be as long as several thousand bases. ... Several regulatory sequences may be found in the 5' UTR:
- Binding sites for proteins, that may affect the mRNA's stability or translation, for example iron responsive elements, that regulate gene expression in response to iron.
- Sequences that promote or inhibit translation initiation.
- Introns within 5' UTRs have been linked to regulation of gene expression and mRNA export.”
If TBP can bind to any variety of seven A/Ts before the TSS, then the sequence 3'-AAAAAATAATAATTA-5' is likely to be the 3'-"xod-ATAT"-5', rather than the traditional 3'-"TATA-box"-5'. The first (T)-5' is at 58858405, only 233 nts from TSS, but way outside the core promoter.
RNA polymerase II holoenzymes
"RNA polymerase II ... is recruited to the promoters of protein-coding genes in living cells." Or, transcription factories are present and the euchromatin is brought within the nearest transcription factory and A1BG messenger RNA (mRNA) is transcribed.
For those circumstances in which the holoenzyme is built onto the euchromatin, it is necessary to consider the holoenzyme components and the likely sequence of binding, RNA polymerase II entrance upon the scene and subsequent action.
"RNA polymerase II (also called RNAP II and Pol II) ... catalyzes the transcription of DNA to synthesize precursors of mRNA and most snRNA and microRNA. ... In humans RNAP II consists of seventeen protein molecules (gene products encoded by POLR2A-L, where the proteins synthesized from 2C-, E-, and F-form homodimers)."
- A1BG may be transcribed from either direction.
- A1BG may be transcribed from either strand.
- Each of the many ways to alter gene expression can be applied to the expression of A1BG.
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