Products

Qualitative

Entrez GeneID

Protein Accession#

Gene Name

TAF4

Gene Alias

FLJ41943, TAF2C, TAF2C1, TAF4A, TAFII130, TAFII135

Gene Description

TAF4 RNA polymerase II, TATA box binding protein (TBP)-associated factor, 135kDa

Omim ID

Gene Ontology

Gene Summary

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 one of the larger subunits of TFIID that has been shown to potentiate transcriptional activation by retinoic acid, thyroid hormone and vitamin D3 receptors. In addition, this subunit interacts with the transcription factor CREB, which has a glutamine-rich activation domain, and binds to other proteins containing glutamine-rich regions. Aberrant binding to this subunit by proteins with expanded polyglutamine regions has been suggested as one of the pathogenetic mechanisms underlying a group of neurodegenerative disorders referred to as polyglutamine diseases. [provided by RefSeq

Other Designations

TAF4 RNA polymerase II, TATA box binding protein (TBP)-associated factor, 135 kD|TAF4A RNA polymerase II, TATA box binding protein (TBP)-associated factor, 135 kD|TATA box binding protein (TBP)-associated factor, RNA polymerase II, C1, 130kD|TBP-associate

Entrez GeneID

Protein Accession#

Gene Name

TAF4B

Gene Alias

TAF2C2, TAFII105

Gene Description

TAF4b RNA polymerase II, TATA box binding protein (TBP)-associated factor, 105kDa

Omim ID

Gene Ontology

Gene Summary

TATA-binding protein associated factors (TAFs) participate, with TATA binding protein (TBP; MIM 600075), in the formation of the TFIID protein complex (see MIM 313650), which is involved in the initiation of gene transcription by RNA polymerase II (see MIM 180660).[supplied by OMIM

Other Designations

TATA box binding protein (TBP)-associated factor 4B|TATA box binding protein (TBP)-associated factor, RNA polymerase II, C2, 105kD|transcription initiation factor TFIID 105 kD subunit