TAF9B

Last updated
TAF9B
Identifiers
Aliases TAF9B , DN-7, DN7, TAF9L, TAFII31L, TFIID-31, TATA-box binding protein associated factor 9b
External IDs OMIM: 300754 MGI: 3039562 HomoloGene: 47969 GeneCards: TAF9B
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_015975

NM_001001176
NM_001167988

RefSeq (protein)

NP_057059

NP_001001176
NP_001161460

Location (UCSC) Chr X: 78.13 – 78.14 Mb Chr X: 105.25 – 105.26 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Transcription initiation factor TFIID subunit 9B is a protein that in humans is encoded by the TAF9B gene. [5] [6]

Initiation of transcription by RNA polymerase II requires the activities of more than 70 polypeptides. The protein that coordinates these activities is transcription factor IID (TFIID), which binds to the core promoter to position the polymerase properly, serves as the scaffold for assembly of the remainder of the transcription complex, and acts as a channel for regulatory signals. TFIID is composed of the TATA-binding protein (TBP) and a group of evolutionarily conserved proteins known as TBP-associated factors or TAFs. TAFs may participate in basal transcription, serve as coactivators, function in promoter recognition or modify general transcription factors (GTFs) to facilitate complex assembly and transcription initiation. This gene encodes a protein that is similar to one of the small subunits of TFIID, TBP-associated factor 9, and is also a subunit of TFIID. TAF9 and TAF9b share some functions but also have distinct roles in the transcriptional regulatory process. [6]

Related Research Articles

TATA-binding protein Protein-coding gene in the species Homo sapiens

The TATA-binding protein (TBP) is a general transcription factor that binds specifically to a DNA sequence called the TATA box. This DNA sequence is found about 30 base pairs upstream of the transcription start site in some eukaryotic gene promoters.

Transcription factor II D (TFIID) is one of several general transcription factors that make up the RNA polymerase II preinitiation complex. RNA polymerase II holoenzyme is a form of eukaryotic RNA polymerase II that is recruited to the promoters of protein-coding genes in living cells. It consists of RNA polymerase II, a subset of general transcription factors, and regulatory proteins known as SRB proteins. Before the start of transcription, the transcription Factor II D (TFIID) complex binds to the core promoter DNA of the gene through specific recognition of promoter sequence motifs, including the TATA box, Initiator, Downstream Promoter, Motif Ten, or Downstream Regulatory elements.

Transcription factor TFIIA is a nuclear protein involved in the RNA polymerase II-dependent transcription of DNA. TFIIA is one of several general (basal) transcription factors (GTFs) that are required for all transcription events that use RNA polymerase II. Other GTFs include TFIID, a complex composed of the TATA binding protein TBP and TBP-associated factors (TAFs), as well as the factors TFIIB, TFIIE, TFIIF, and TFIIH. Together, these factors are responsible for promoter recognition and the formation of a transcription preinitiation complex (PIC) capable of initiating RNA synthesis from a DNA template.

TAF6

Transcription initiation factor TFIID subunit 6 is a protein that in humans is encoded by the TAF6 gene.

TAF7

Transcription initiation factor TFIID subunit 7 also known as TAFII55 is a protein that in humans is encoded by the TAF7 gene.

TAF1 Protein-coding gene in the species Homo sapiens

Transcription initiation factor TFIID subunit 1, also known as transcription initiation factor TFIID 250 kDa subunit (TAFII-250) or TBP-associated factor 250 kDa (p250), is a protein that in humans is encoded by the TAF1 gene.

TAF9 Protein-coding gene in the species Homo sapiens

TAF9 RNA polymerase II, TATA box binding protein (TBP)-associated factor, 32kDa, also known as TAF9, is a protein that in humans is encoded by the TAF9 gene.

TAF12 Protein-coding gene in the species Homo sapiens

Transcription initiation factor TFIID subunit 12 is a protein that in humans is encoded by the TAF12 gene.

TAF4

Transcription initiation factor TFIID subunit 4 is a protein that in humans is encoded by the TAF4 gene.

TAF2 Protein-coding gene in the species Homo sapiens

Transcription initiation factor TFIID subunit 2 is a protein that in humans is encoded by the TAF2 gene.

TAF10

Transcription initiation factor TFIID subunit 10 is a protein that in humans is encoded by the TAF10 gene.

TAF5

Transcription initiation factor TFIID subunit 5 is a protein that in humans is encoded by the TAF5 gene.

TAF11 Protein-coding gene in the species Homo sapiens

Transcription initiation factor TFIID subunit 11 also known as TAFII28, is a protein that in humans is encoded by the TAF11 gene.

TAF13 Protein-coding gene in the species Homo sapiens

Transcription initiation factor TFIID subunit 13 is a protein that in humans is encoded by the TAF13 gene.

TAF8 Protein-coding gene in the species Homo sapiens

Transcription initiation factor TFIID subunit 8 is a protein that in humans is encoded by the TAF8 gene.

TAF1C

TATA box-binding protein-associated factor RNA polymerase I subunit C is an enzyme that in humans is encoded by the TAF1C gene.

TAF6L

TAF6-like RNA polymerase II p300/CBP-associated factor-associated factor 65 kDa subunit 6L is an enzyme that in humans is encoded by the TAF6L gene.

TBPL1 Protein-coding gene in the species Homo sapiens

TATA box-binding protein-like protein 1 is a protein that in humans is encoded by the TBPL1 gene.

GTF2A1

Transcription initiation factor IIA subunit 1 is a protein that in humans is encoded by the GTF2A1 gene.

TBP-associated factor Protein domains

The TBP-associated factors (TAF) are proteins that associate with the TATA-binding protein in transcription initiation. It is a part of the transcription initiation factor TFIID multimeric protein complex. It also makes up many other factors, including SL1. They mediate the formation of the transcription preinitiation complex, a step preceding transcription of DNA to RNA by RNA polymerase II.

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000187325 - Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000047242 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Frontini M, Soutoglou E, Argentini M, Bole-Feysot C, Jost B, Scheer E, Tora L (May 2005). "TAF9b (formerly TAF9L) is a bona fide TAF that has unique and overlapping roles with TAF9". Mol Cell Biol. 25 (11): 4638–49. doi:10.1128/MCB.25.11.4638-4649.2005. PMC   1140618 . PMID   15899866.
  6. 1 2 "Entrez Gene: TAF9B TAF9B RNA polymerase II, TATA box binding protein (TBP)-associated factor, 31kDa".

Further reading