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: 2.40 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.100 
  • R-Value Observed: 0.212 

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
  • Primary Citation of Related Structures:  
    1JMC

  • 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 with DNA remain speculative ...

    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

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (REPLICATION PROTEIN A (RPA))B [auth A]246Homo sapiensMutation(s): 0 
Gene Names: RPA1REPA1RPA70
UniProt & NIH Common Fund Data Resources
Find proteins for P27694 (Homo sapiens)
Explore P27694 
Go to UniProtKB:  P27694
PHAROS:  P27694
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP27694
Protein Feature View
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  • Reference Sequence

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Entity ID: 1
MoleculeChainsLengthOrganismImage
DNA (5'-D(*CP*CP*CP*CP*CP*CP*CP*C)-3')A [auth B]8N/A
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.330 
  • R-Value Work: 0.100 
  • R-Value Observed: 0.212 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 34.25α = 90
b = 77.99β = 90
c = 95.36γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASESphasing
X-PLORrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

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