1AXC

HUMAN PCNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.289 
  • R-Value Work: 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


  • 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 determi ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PCNA
A, C, E
261Homo sapiensGene Names: PCNA
Find proteins for P12004 (Homo sapiens)
Go to Gene View: PCNA
Go to UniProtKB:  P12004
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
P21/WAF1
B, D, F
22Homo sapiensGene Names: CDKN1A (CAP20, CDKN1, CIP1, MDA6, PIC1, SDI1, WAF1)
Find proteins for P38936 (Homo sapiens)
Go to Gene View: CDKN1A
Go to UniProtKB:  P38936
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.289 
  • R-Value Work: 0.192 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 83.500α = 90.00
b = 83.500β = 90.00
c = 233.900γ = 120.00
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORphasing
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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