Eukaryotic transcription initiation (Anopheles gambiae)

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ArcPathVisio Brace Ellipse EndoplasmicReticulum GolgiApparatus HexagonPathVisio MimDegradation Mitochondria Octagon PentagonPathVisio Rectangle RoundedRectangle SarcoplasmicReticulum TriangleEquilateralEast TrianglePathVisio none TATA53355353TATA5353dsDNA5353535Primary RNA transcriptRNA polymerase II(mRNA, snRNPs)RNA polymerase I(large ribosomal RNAs)cell growthGene Regulatory Proteins(recognize surface DNA geometry)Transcription Initiation Factors (TIFs)TFIIDTFIIBTFIIFTATATFIIFRNA pol IITFIIHTFIIETATA Box bindingproteinSteps 1) TBP binds TATA boxSteps 2) Association of TIFs and RNA polymeraseSteps 3) DNA melting by association with TFIIHSteps 4) Transcription elongation by NTPsSteps 5) RNA elongation with CDT phosphorylationTFIIATFIIHAgaP_AGAP002646AgaP_AGAP011110AgaP_AGAP010559AgaP_AGAP010984AgaP_AGAP012169AgaP_AGAP002988AgaP_AGAP008417AgaP_AGAP008991AgaP_AGAP008522TFIIFAgaP_AGAP007002TFIIAAgaP_AGAP004370TFIIEAgaP_AGAP006355AgaP_AGAP005382TFIIBAgaP_AGAP009558TFIIDAgaP_AGAP011678AgaP_AGAP004254AgaP_AGAP010493AgaP_AGAP003094AgaP_AGAP006573AgaP_AGAP003135AgaP_AGAP008045RNA polymerase III(small stable RNAs)AgaP_AGAP008151AgaP_AGAP004480AgaP_AGAP005922AgaP_AGAP012122POLR3KAgaP_AGAP010958AgaP_AGAP009539AgaP_AGAP007810AgaP_AGAP005873AgaP_AGAP010321AgaP_AGAP010064POLR2KPOLR1AAgaP_AGAP008393AgaP_AGAP002121AgaP_AGAP012397AgaP_AGAP009209AgaP_AGAP003648AgaP_AGAP001792POLR1DName: Eukaryotic transcription initiationOrganism: Anopheles gambiae


Description

In eukaryotes, RNA polymerase, and therefore the initiation of transcription, requires the presence of a core promoter sequence in the DNA. RNA polymerase is able to bind to core promoters in the presence of various specific transcription factors. The most common type of core promoter in eukaryotes is a short DNA sequence known as a TATA box. The TATA box, as a core promoter, is the binding site for a transcription factor known as TATA binding protein (TBP), which is itself a subunit of another transcription factor, called Transcription Factor II D (TFIID). After TFIID binds to the TATA box via the TBP, five more transcription factors and RNA polymerase combine around the TATA box in a series of stages to form a preinitiation complex. One transcription factor, DNA helicase, has helicase activity and so is involved in the separating of opposing strands of double-stranded DNA to provide access to a single-stranded DNA template. However, only a low, or basal, rate of transcription is driven by the preinitiation complex alone. Other proteins known as activators and repressors, along with any associated coactivators or corepressors, are responsible for modulating transcription rate. Source: [Wikipedia](https://en.wikipedia.org/wiki/Transcription_(biology))

Comments

GenMAPP notes 
Reference: http://www.web-books.com/MoBio/Free/Ch4E.htm
HomologyConvert 
This pathway was inferred from Homo sapiens pathway WP405(r29565) with a 90% conversion rate.

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Quality Tags

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Image:Curated.pngApproved version
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Homology Converted

Ontology Terms

Pathway Ontology : transcription pathway
 

Bibliography

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History

View all...
CompareRevisionActionTimeUserComment
136956
Approved
view19:51, 26 February 2025KhanspersModified description
117221view09:29, 19 May 2021EweitzModified title
67210view10:21, 26 June 2013Christine ChichesterOntology Term : 'transcription pathway' added !
63238view23:46, 8 May 2013AnweshaConverted interactions to graphical lines
63237view23:41, 8 May 2013AnweshaPeriodical save, work in progress
63236view23:31, 8 May 2013AnweshaPeriodical save, work in progress
63235view23:22, 8 May 2013AnweshaOpened to convert to GPML 2013
40459view18:46, 1 March 2011MaintBotRemoved redundant pathway information and comments
35523view13:55, 12 February 2010Thomasadded literature
35510view13:48, 12 February 2010ThomasModified description
32289view13:11, 15 August 2009MaintBotFixed text labels
31843view12:30, 14 August 2009MaintBotFixed group labels
31317view20:16, 13 August 2009MaintBotFixed text labels
30807view23:49, 29 July 2009MaintBotNew pathway

External references

DataNodes

View all...
Name  ↓Type  ↓Database reference  ↓Comment  ↓
AgaP_AGAP001792GeneProduct1281323 (Entrez Gene)
AgaP_AGAP002121GeneProduct1281372 (Entrez Gene)
AgaP_AGAP002646GeneProduct1273315 (Entrez Gene)
AgaP_AGAP002988GeneProduct1272969 (Entrez Gene)
AgaP_AGAP003094GeneProduct1273770 (Entrez Gene)
AgaP_AGAP003135GeneProduct1273807 (Entrez Gene)
AgaP_AGAP003648GeneProduct1274316 (Entrez Gene)
AgaP_AGAP004254GeneProduct1274098 (Entrez Gene)
AgaP_AGAP004370GeneProduct1274516 (Entrez Gene)
AgaP_AGAP004480GeneProduct3291022 (Entrez Gene)
AgaP_AGAP005382GeneProduct1276084 (Entrez Gene)
AgaP_AGAP005873GeneProduct1276540 (Entrez Gene)
AgaP_AGAP005922GeneProduct1276589 (Entrez Gene)
AgaP_AGAP006355GeneProduct1276961 (Entrez Gene)
AgaP_AGAP006573GeneProduct1277157 (Entrez Gene)
AgaP_AGAP007002GeneProduct1270098 (Entrez Gene)
AgaP_AGAP007810GeneProduct1278148 (Entrez Gene)
AgaP_AGAP008045GeneProduct1277907 (Entrez Gene)
AgaP_AGAP008151GeneProduct1277811 (Entrez Gene)
AgaP_AGAP008393GeneProduct1277585 (Entrez Gene)
AgaP_AGAP008417GeneProduct1277560 (Entrez Gene)
AgaP_AGAP008522GeneProduct1277449 (Entrez Gene)
AgaP_AGAP008991GeneProduct1279954 (Entrez Gene)
AgaP_AGAP009209GeneProduct1280168 (Entrez Gene)
AgaP_AGAP009539GeneProduct1271371 (Entrez Gene)
AgaP_AGAP009558GeneProduct1271351 (Entrez Gene)
AgaP_AGAP010064GeneProduct1279496 (Entrez Gene)
AgaP_AGAP010321GeneProduct1278625 (Entrez Gene)
AgaP_AGAP010493GeneProduct1275232 (Entrez Gene)
AgaP_AGAP010559GeneProduct1275295 (Entrez Gene)
AgaP_AGAP010958GeneProduct1271006 (Entrez Gene)
AgaP_AGAP010984GeneProduct1270972 (Entrez Gene)
AgaP_AGAP011110GeneProduct1270814 (Entrez Gene)
AgaP_AGAP011678GeneProduct1280962 (Entrez Gene)
AgaP_AGAP012122GeneProduct1280555 (Entrez Gene)
AgaP_AGAP012169GeneProduct1280516 (Entrez Gene)
AgaP_AGAP012397GeneProduct1280317 (Entrez Gene)
POLR1AGeneProduct
POLR1DGeneProduct
POLR2KGeneProduct
POLR3KGeneProduct

Annotated Interactions

No annotated interactions
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