1AXC

HUMAN PCNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.192 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of the C-terminal region of p21(WAF1/CIP1) complexed with human PCNA.

Gulbis, J.M.Kelman, Z.Hurwitz, J.O'Donnell, M.Kuriyan, J.

(1996) Cell 87: 297-306

  • DOI: 10.1016/s0092-8674(00)81347-1
  • Primary Citation of Related Structures:  
    1AXC

  • PubMed Abstract: 
  • The crystal structure of the human DNA polymerase delta processivity factor PCNA (proliferating cell nuclear antigen) complexed with a 22 residue peptide derived from the C-terminus of the cell-cycle checkpoint protein p21(WAF1/CIP1) has been determined at 2 ...

    The crystal structure of the human DNA polymerase delta processivity factor PCNA (proliferating cell nuclear antigen) complexed with a 22 residue peptide derived from the C-terminus of the cell-cycle checkpoint protein p21(WAF1/CIP1) has been determined at 2.6 angstrom resolution. p21 binds to PCNA in a 1:1 stoichiometry with an extensive array of interactions that include the formation of a beta sheet with the interdomain connector loop of PCNA. An intact trimeric ring is maintained in the structure of the p21-PCNA complex, with a central hole available for DNA interaction. The ability of p21 to inhibit the action of PCNA is therefore likely to be due to its masking of elements on PCNA that are required for the binding of other components of the polymerase assembly.


    Organizational Affiliation

    Laboratory of Molecular Biophysics, The Rockefeller University, New York, New York 10021, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PCNA ACE261Homo sapiensMutation(s): 0 
Gene Names: PCNA
Find proteins for P12004 (Homo sapiens)
Explore P12004 
Go to UniProtKB:  P12004
NIH Common Fund Data Resources
PHAROS:  P12004
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
P21/WAF1 BDF22Homo sapiensMutation(s): 0 
Gene Names: CDKN1ACAP20CDKN1CIP1MDA6PIC1SDI1WAF1
Find proteins for P38936 (Homo sapiens)
Explore P38936 
Go to UniProtKB:  P38936
NIH Common Fund Data Resources
PHAROS:  P38936
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.192 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 83.5α = 90
b = 83.5β = 90
c = 233.9γ = 120
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-01-28
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance