2CHQ

Replication Factor C ADPNP complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.297 
  • R-Value Observed: 0.299 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Communication between Subunits within an Archaeal Clamp-Loader Complex.

Seybert, A.Singleton, M.R.Cook, N.Hall, D.R.Wigley, D.B.

(2006) EMBO J 25: 2209

  • DOI: https://doi.org/10.1038/sj.emboj.7601093
  • Primary Citation of Related Structures:  
    2CHG, 2CHQ, 2CHV

  • PubMed Abstract: 

    We have investigated the communication between subunits in replication factor C (RFC) from Archaeoglobus fulgidus. Mutation of the proposed arginine finger in the small subunits results in a complex that can still bind ATP but has impaired clamp-loading activity, a process that normally only requires binding of nucleotide. The small subunit alone forms a hexameric ring that is six-fold symmetric in the absence of ATP. However, this symmetry is broken when the nucleotide is bound to the complex. A conformational change associated with nucleotide binding may relate to the opening of PCNA rings by RFC during the loading reaction. The structures also reveal the importance of the N-terminal helix of each subunit at the ATP-binding site. Analysis of mutant protein complexes containing subunits lacking this N-terminal helix reveals key distinct regulatory roles during clamp loading that are different for the large and small subunits in the RFC complex.


  • Organizational Affiliation

    Clare Hall Laboratories, Cancer Research UK, London Research Institute, South Mimms Potters Bar, Herts, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
REPLICATION FACTOR C SMALL SUBUNIT
A, B, C
319Archaeoglobus fulgidusMutation(s): 0 
UniProt
Find proteins for O28219 (Archaeoglobus fulgidus (strain ATCC 49558 / DSM 4304 / JCM 9628 / NBRC 100126 / VC-16))
Explore O28219 
Go to UniProtKB:  O28219
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO28219
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.297 
  • R-Value Observed: 0.299 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 109.169α = 90
b = 109.169β = 90
c = 257.068γ = 120
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-06-06
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2024-05-08
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description