ISDA

Deposition Date 1996-11-04

Release Date 1997-03-12

Last Version Date 2024-05-22

Entry Detail

PDB ID:

1TBD

Keywords:

DNA BINDING PROTEIN

Title:

SOLUTION STRUCTURE OF THE ORIGIN DNA BINDING DOMAIN OF SV40 T-ANTIGEN, NMR, MINIMIZED AVERAGE STRUCTURE

Biological Source:

Source Organism:

Simian virus 40 (Taxon ID: 10633)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Calculated:

Conformers Submitted:

Selection Criteria:

TO BE GIVEN

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:SV40 T-ANTIGEN
Chain IDs:A
Chain Length:134
Number of Molecules:1
Biological Source:Simian virus 40

UniProt ID:P03070 Pfam ID:PF02217

Ligand Molecules

Primary Citation

Solution structure of the origin DNA-binding domain of SV40 T-antigen.

Luo, X, Sanford, D.G, Bullock, P.A, Bachovchin, W.W.Show

Nat.Struct.Biol. 3 1034 1039 (1996)

PMID: 8946857 DOI: 10.1038/nsb1296-1034

Abstact

The structure of the domain from simian virus 40 (SV40) large T-antigen that binds to the SV40 origin of DNA replication (T-ag-OBD131-260) has been determined by nuclear magnetic resonance spectroscopy. The overall fold, consisting of a central five-stranded antiparallel beta-sheet flanked by two alpha-helices on one side and one alpha-helix and one 3(10)-helix on the other, is a new one. Previous mutational analyses have identified two elements, termed A (approximately 152-155) and B2 (203-207), as essential for origin-specific recognition. These elements form two closely juxtaposed loops that define a continuous surface on the protein. The addition of a duplex oligonucleotide containing the origin recognition pentanucleotide GAGGC induces chemical shift changes and slows amide proton exchange in resonances from this region, indicating that this surface directly contacts the DNA.

Legend

Protein

Chemical

Disease

Primary Citation of related structures