1TF6 image
Deposition Date 1998-03-02
Release Date 1998-07-10
Last Version Date 2024-02-14
Entry Detail
PDB ID:
1TF6
Keywords:
TRANSCRIPTION/DNA
Title:
CO-CRYSTAL STRUCTURE OF XENOPUS TFIIIA ZINC FINGER DOMAIN BOUND TO THE 5S RIBOSOMAL RNA GENE INTERNAL CONTROL REGION
Biological Source:
Source Organism:
Xenopus laevis (Taxon ID: 8355)
Host Organism:
Escherichia coli BL21(DE3)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
3.10 Å
R-Value Free:
0.36
R-Value Work:
0.30
R-Value Observed:
0.30
Space Group:
P 1
1TF6 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:PROTEIN (TRANSCRIPTION FACTOR IIIA)
Gene (Uniprot):gtf3a
Chain IDs:E (auth: A), F (auth: D)
Chain Length:190
Number of Molecules:2
Biological Source:Xenopus laevis
UniProt ID:P03001 Pfam ID:PF00096, PF22110
Ligand Molecules
ZN
Primary Citation
Differing roles for zinc fingers in DNA recognition: structure of a six-finger transcription factor IIIA complex.
Proc.Natl.Acad.Sci.USA 95 2938 2943 (1998)
PMID: 9501194 DOI: 10.1073/pnas.95.6.2938

Abstact

The crystal structure of the six NH2-terminal zinc fingers of Xenopus laevis transcription factor IIIA (TFIIIA) bound with 31 bp of the 5S rRNA gene promoter has been determined at 3.1 A resolution. Individual zinc fingers are positioned differently in the major groove and across the minor groove of DNA to span the entire length of the duplex. These results show how TFIIIA can recognize several separated DNA sequences by using fewer fingers than necessary for continuous winding in the major groove.

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Disease

Primary Citation of related structures
1TF6