Article · Wikipedia archive · Last revised Jun 12, 2026

BTAF1

TATA-binding protein-associated factor 172 is a protein that in humans is encoded by the BTAF1 gene.

Last revised
Jun 12, 2026
Read time
≈ 4 min
Length
1,010 w
Citations
14
Source
BTAF1
Identifiers
AliasesBTAF1, MOT1, TAF(II)170, TAF172, TAFII170, B-TFIID TATA-box binding protein associated factor 1
External IDsOMIM: 605191; MGI: 2147538; HomoloGene: 31978; GeneCards: BTAF1; OMA:BTAF1 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_003972

NM_001080706

RefSeq (protein)

NP_003963
NP_003963.1

NP_001074175

Location (UCSC)Chr 10: 91.92 – 92.03 MbChr 19: 36.9 – 36.99 Mb
PubMed search34
Wikidata
View/Edit HumanView/Edit Mouse

TATA-binding protein-associated factor 172 is a protein that in humans is encoded by the BTAF1 gene.567

Function

Initiation of transcription by RNA polymerase II requires the assistance of TATA box-binding protein (TBP; MIM 600075) and TBP-associated factors, or TAFs (e.g., TAF2B; MIM 604912), in 2 distinct complexes, TFIID and B-TFIID. The TFIID complex is composed of TBP and more than 8 TAFs. However, the majority of TBP is present in the B-TFIID complex, which is composed of TBP and TAFII170, also called TAF172, and has DNA-dependent ATPase activity.[supplied by OMIM]7

Interactions

BTAF1 has been shown to interact with TATA binding protein.68

References

References

  1. GRCh38: Ensembl release 89: ENSG00000095564Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000040565Ensembl, 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. van der Knaap JA, Borst JW, van der Vliet PC, Gentz R, Timmers HT (Dec 1997). "Cloning of the cDNA for the TATA-binding protein-associated factorII170 subunit of transcription factor B-TFIID reveals homology to global transcription regulators in yeast and Drosophila". Proc Natl Acad Sci U S A. 94 (22): 11827–32. Bibcode:1997PNAS...9411827V. doi:10.1073/pnas.94.22.11827. PMC 23617. PMID 9342322.
  6. Chicca JJ, Auble DT, Pugh BF (Mar 1998). "Cloning and Biochemical Characterization of TAF-172, a Human Homolog of Yeast Mot1". Mol Cell Biol. 18 (3): 1701–10. doi:10.1128/MCB.18.3.1701. PMC 108885. PMID 9488487.
  7. "Entrez Gene: BTAF1 BTAF1 RNA polymerase II, B-TFIID transcription factor-associated, 170kDa (Mot1 homolog, S. cerevisiae)".
  8. Scully R, Anderson SF, Chao DM, Wei W, Ye L, Young RA, Livingston DM, Parvin JD (May 1997). "BRCA1 is a component of the RNA polymerase II holoenzyme". Proc. Natl. Acad. Sci. U.S.A. 94 (11): 5605–10. Bibcode:1997PNAS...94.5605S. doi:10.1073/pnas.94.11.5605. PMC 20825. PMID 9159119.
External links
Further reading

Further reading