1JMC

SINGLE STRANDED DNA-BINDING DOMAIN OF HUMAN REPLICATION PROTEIN A BOUND TO SINGLE STRANDED DNA, RPA70 SUBUNIT, RESIDUES 183-420


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.100 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the single-stranded-DNA-binding domain of replication protein A bound to DNA.

Bochkarev, A.Pfuetzner, R.A.Edwards, A.M.Frappier, L.

(1997) Nature 385: 176-181

  • DOI: 10.1038/385176a0

  • PubMed Abstract: 
  • The single-stranded-DNA-binding proteins (SSBs) are essential for DNA function in prokaryotic and eukaryotic cells, mitochondria, phages and viruses. The structures of four SSBs have been solved, but the molecular details of the interaction of SSBs w ...

    The single-stranded-DNA-binding proteins (SSBs) are essential for DNA function in prokaryotic and eukaryotic cells, mitochondria, phages and viruses. The structures of four SSBs have been solved, but the molecular details of the interaction of SSBs with DNA remain speculative. We report here the crystal structure at 2.4 A resolution of the single-stranded-DNA-binding domain of human replication protein A (RPA) bound to DNA. Replication protein A is a heterotrimeric SSB that is highly conserved in eukaryotes. The largest subunit, RPA70, binds to single-stranded (ss)DNA and mediates interactions with many cellular and viral proteins. The DNA-binding domain, which lies in the middle of RPA70, comprises two structurally homologous subdomains oriented in tandem. The ssDNA lies in a channel that extends from one subdomain to the other. The structure of each RPA70 subdomain is similar to those of the bacteriophage SSBs, indicating that the mechanism of ssDNA-binding is conserved.


    Related Citations: 
    • Replication Protein A. Characterization and Crystallization of the DNA Binding Domain
      Pfuetzner, R.A.,Bochkarev, A.,Frappier, L.,Edwards, A.M.
      (1997) J.Biol.Chem. 272: 430


    Organizational Affiliation

    Institute for Molecular Biology and Biotechnology, Cancer Research Group, McMaster University, Hamilton, Ontario, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (REPLICATION PROTEIN A (RPA))
A
246Homo sapiensMutation(s): 0 
Gene Names: RPA1 (REPA1, RPA70)
Find proteins for P27694 (Homo sapiens)
Go to Gene View: RPA1
Go to UniProtKB:  P27694
Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*CP*CP*CP*CP*CP*CP*CP*C)-3')B8N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.100 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 34.250α = 90.00
b = 77.990β = 90.00
c = 95.360γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling
PHASESphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-10-16
    Type: Initial release
  • Version 1.1: 2008-05-22
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance