Structural highlights
Function
T2FA_HUMAN TFIIF is a general transcription initiation factor that binds to RNA polymerase II and helps to recruit it to the initiation complex in collaboration with TFIIB. It promotes transcription elongation.[1]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The x-ray structure of a C-terminal fragment of the RAP74 subunit of human transcription factor (TF) IIF has been determined at 1.02-A resolution. The alpha/beta structure is strikingly similar to the globular domain of linker histone H5 and the DNA-binding domain of hepatocyte nuclear factor 3gamma (HNF-3gamma), making it a winged-helix protein. The surface electrostatic properties of this compact domain differ significantly from those of bona fide winged-helix transcription factors (HNF-3gamma and RFX1) and from the winged-helix domains found within the RAP30 subunit of TFIIF and the beta subunit of TFIIE. RAP74 has been shown to interact with the TFIIF-associated C-terminal domain phosphatase FCP1, and a putative phosphatase binding site has been identified within the RAP74 winged-helix domain.
Crystal structure of the C-terminal domain of the RAP74 subunit of human transcription factor IIF.,Kamada K, De Angelis J, Roeder RG, Burley SK Proc Natl Acad Sci U S A. 2001 Mar 13;98(6):3115-20. PMID:11248041[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Rossignol M, Keriel A, Staub A, Egly JM. Kinase activity and phosphorylation of the largest subunit of TFIIF transcription factor. J Biol Chem. 1999 Aug 6;274(32):22387-92. PMID:10428810
- ↑ Kamada K, De Angelis J, Roeder RG, Burley SK. Crystal structure of the C-terminal domain of the RAP74 subunit of human transcription factor IIF. Proc Natl Acad Sci U S A. 2001 Mar 13;98(6):3115-20. PMID:11248041 doi:10.1073/pnas.051631098
