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


This is version 1.1 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: 10.1038/sj.emboj.7601093
  • Primary Citation of Related Structures:  
    2CHG, 2CHV, 2CHQ

  • 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 ...

    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)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
REPLICATION FACTOR C SMALL SUBUNITA, B, C319Archaeoglobus fulgidusMutation(s): 0 
Find proteins for O28219 (Archaeoglobus fulgidus (strain ATCC 49558 / VC-16 / DSM 4304 / JCM 9628 / NBRC 100126))
Explore O28219 
Go to UniProtKB:  O28219
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ANP
Query on ANP

Download Ideal Coordinates CCD File 
D [auth A], E [auth B], F [auth C]PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
C10 H17 N6 O12 P3
PVKSNHVPLWYQGJ-KQYNXXCUSA-N
 Ligand Interaction
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

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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