TAF1
TATA-box binding protein associated factor 1
Pathway candidate — not linked to PFS or PSSD by any record here
Gene summary
A protein-coding gene on chromosome X (basal transcription machinery). Initiation of transcription by RNA polymerase II requires the activities of more than 70 polypeptides. The protein that coordinates these activities is the basal transcription factor 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.
Source: NCBI Gene, accessed 2026-10-07.
Protein reference (UniProt)
- Protein
Transcription initiation factor TFIID subunit 1
- Function (excerpt)
The TFIID basal transcription factor complex plays a major role in the initiation of RNA polymerase II (Pol II)-dependent transcription. TFIID recognizes and binds promoters with or without a TATA box via its subunit TBP, a TATA-box-binding protein, and promotes assembly of the pre-initiation complex (PIC). The TFIID complex consists of TBP and TBP-associated factors (TAFs), including TAF1, TAF2, TAF3, TAF4, TAF5, TAF6, TAF7, TAF8, TAF9, TAF10, TAF11, TAF12 and TAF13. TAF1 is the largest component and core scaffold of the TFIID complex, involved in nucleating complex assembly. TAF1 forms a promoter DNA binding subcomplex of TFIID, together with TAF7 and TAF2. Contains novel N- and C-terminal Ser/Thr kinase domains which can autophosphorylate or transphosphorylate other transcription factors. Phosphorylates TP53 on 'Thr-55' which leads to MDM2-mediated degradation of TP53. Phosphorylates GTF2A1 and GTF2F1 on Ser residues. Possesses DNA-binding activity.
- Subcellular location
Nucleus.
- Associated conditions
Dystonia 3, torsion, X-linked (DYT3); Intellectual developmental disorder, X-linked, syndromic 33 (MRXS33).
Source: UniProtKB/Swiss-Prot P21675, release 2026_03, licensed CC BY 4.0. This is the protein’s normal biology, not evidence about post-drug syndromes; associated conditions are inherited disorders of the gene, not PFS, PSSD or PRSD.
Why its pathway is in the library
Core RNA polymerase II machinery; general cellular function with no direct post-drug-syndrome link established.
Written for the whole basal transcription family, not for TAF1 specifically.
Mentioned in 0 corpus records
No corpus record names TAF1 directly yet. It is in the library because it sits in a pathway the corpus tracks (Basal transcription).
Also in basal transcription machinery
All 27 genes- GTF2A1
general transcription factor IIA subunit 1
chr 14· Basal transcription· Pathway candidate - GTF2B
general transcription factor IIB
chr 1· Basal transcription· Pathway candidate - GTF2E1
general transcription factor IIE subunit 1
chr 3· Basal transcription· Pathway candidate - GTF2F1
general transcription factor IIF subunit 1
chr 19· Basal transcription· Pathway candidate - GTF2H1
general transcription factor IIH subunit 1
chr 11· Basal transcription· Pathway candidate - POLR2A
RNA polymerase II subunit A
chr 17· Basal transcription· Pathway candidate - POLR2B
RNA polymerase II subunit B
chr 4· Basal transcription· Pathway candidate - POLR2C
RNA polymerase II subunit C
chr 16· Basal transcription· Pathway candidate
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