1I27 image
Deposition Date 2001-02-07
Release Date 2001-03-07
Last Version Date 2024-02-07
Entry Detail
PDB ID:
1I27
Keywords:
TRANSCRIPTION
Title:
CRYSTAL STRUCTURE OF THE C-TERMINAL DOMAIN OF THE RAP74 SUBUNIT OF HUMAN TRANSCRIPTION FACTOR IIF (TFIIF)
Biological Source:
Source Organism(s):
Homo sapiens (Taxon ID: 9606)
Expression System(s):
Escherichia coli bl21(de3)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.02 Å
R-Value Free:
0.14
R-Value Observed:
0.12
Space Group:
P 21 21 21
1I27 validation report
Macromolecular Entities
Structures with similar UniProt ID
Protein Blast
Polymer Type:polypeptide(L)
Molecule:TRANSCRIPTION FACTOR IIF
Gene (Uniprot):GTF2F1
Mutagens:YES
Chain IDs:A
Chain Length:73
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P35269
Ligand Molecules
ZN
Primary Citation
Crystal structure of the C-terminal domain of the RAP74 subunit of human transcription factor IIF.
Proc.Natl.Acad.Sci.USA 98 3115 3120 (2001)
PMID: 11248041 DOI: 10.1073/pnas.051631098

Abstact

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.

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Primary Citation of related structures
1I27
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