FEATURES

FAMILY

DESCRIPTION

Also known as TAF6_HUMAN, TAF6, TAF2E, TAFII70. TAFs are components of the transcription factor IID (TFIID) complex, PCAF histone acetylase complex and TBP-free TAFII complex (TFTC). TIIFD is multimeric protein complex that plays a central role in mediating promoter responses to various activators and repressors., Transcriptional regulator which acts primarily as a positive regulator of transcription (PubMed:20096117, PubMed:29358700). Recruited to the promoters of a number of genes including GADD45A and CDKN1A/p21, leading to transcriptional up-regulation and subsequent induction of apoptosis (PubMed:11583621). Also up-regulates expression of other genes including GCNA/ACRC, HES1 and IFFO1 (PubMed:18628956). In contrast, down-regulates transcription of MDM2 (PubMed:11583621). Acts as a transcriptional coactivator to enhance transcription of TP53/p53-responsive genes such as DUSP1 (PubMed:20096117). Can also activate transcription and apoptosis independently of TP53 (PubMed:18628956). Drives apoptosis via the intrinsic apoptotic pathway by up-regulating apoptosis effectors such as BCL2L11/BIM and PMAIP1/NOXA (PubMed:29358700). TFIID and PCAF are composed of TATA binding protein (TBP) and a number of TBP-associated factors (TAFs). TBP is not part of TFTC. Interacts directly with TBP, TAF1/TAFII250, TAF9/TAFII31 AND TAF12/TAFII20. The TAF6/TAFII70-TAF9/TAFII31 heterodimer forms an octamer complex with the TAF4B/TFII105-TAF12/TFIID20 heterodimer. Component of some MLL1/MLL complex, at least composed of the core components KMT2A/MLL1, ASH2L, HCFC1/HCF1, WDR5 and RBBP5, as well as the facultative components BAP18, CHD8, E2F6, HSP70, INO80C, KANSL1, LAS1L, MAX, MCRS1, MGA, MYST1/MOF, PELP1, PHF20, PRP31, RING2, RUVB1/TIP49A, RUVB2/TIP49B, SENP3, TAF1, TAF4, TAF6, TAF7, TAF9 and TEX10. Also interacts with the GTFs, TFIIEalpha/GTF2E1 and TFIIFalpha/GTF2F1. Component of the TFTC-HAT complex. Isoform 1: Interacts with TP53/p53 (PubMed:20096117). Isoform 4: Part of a TFIID-like complex which lacks TAF9 (PubMed:11583621). Isoform 4: Not part of the TFTC (PubMed:11583621). Isoform 4: Interacts with TP53/p53 (PubMed:20096117).

EXTERNAL LINKS

TAF6

Transcription initiation factor TFIID subunit 6

TAF6

Molecular Synopsis