Transcription initiation factor TFIID subunit 6 (TAF6)

Transcription initiation factor TFIID subunit 6 (TAF6) is a protein encoded by the TAF6 gene in humans and is one of the smaller subunits of the TFIID complex, which is essential for the initiation of RNA polymerase II-dependent transcription. TFIID, composed of the TATA-binding protein (TBP) and TBP-associated factors (TAFs), binds to the core promoter to position the polymerase, serves as a scaffold for the transcription complex, and channels regulatory signals. TAF6 interacts weakly with TBP but strongly with TAF1 and helps stabilize the architecture of TFIID by connecting distinct structural modules. Alternative splicing results in several isoforms, with certain isoforms regulating apoptosis through influence on transcription and by initiating expression of genes such as GADD45A and CDKN1A/p21. TAF6 is implicated in human disease, including syndromic intellectual disability, and may play a role in cancer via its regulation of apoptosis and gene expression[1][2][3][4][5][6][8]. Key Clarifications: - TAF6 is not a conventional therapeutic target (receptor, enzyme, transporter, etc.), but mutations or dysregulation impact disease via effects on transcription and apoptosis. - No drugs are currently known to directly target TAF6. There are no established clinical biomarkers or mechanisms of drug action specific to this factor[2][3].

Other names

TATA-box binding protein associated factor 6TAF2ETAFII70TAF(II)70TAFII-70TAFII-80TAF(II)80TAFII80TAFII85TAF6 RNA polymerase IITATA box binding protein (TBP)-associated factor, 80 kDTranscription initiation factor TFIID 70 kD subunitTranscription initiation factor TFIID 80 kDa subunitRNA polymerase II TBP-associated factor subunit EALYUSMGC:8964p80TAF70