3F8T

Crystal structure analysis of a full-length MCM homolog from Methanopyrus kandleri


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Insights into the Architecture of the Replicative Helicase from the Structure of an Archaeal MCM Homolog.

Bae, B.Chen, Y.H.Costa, A.Onesti, S.Brunzelle, J.S.Lin, Y.Cann, I.K.Nair, S.K.

(2009) Structure 17: 211-222

  • DOI: 10.1016/j.str.2008.11.010
  • Primary Citation of Related Structures:  
    3F8T

  • PubMed Abstract: 
  • The minichromosome maintenance (MCM) proteins, members of the AAA+ (ATPase associated with diverse cellular activities) superfamily, are believed to constitute the replicative helicase in eukaryotic and archaeal species. Here, we present the 1.9 A resolution crystal structure of a monomeric MCM homolog from Methanopyrus kandleri, the first crystallographic structure of a full-length MCM ...

    The minichromosome maintenance (MCM) proteins, members of the AAA+ (ATPase associated with diverse cellular activities) superfamily, are believed to constitute the replicative helicase in eukaryotic and archaeal species. Here, we present the 1.9 A resolution crystal structure of a monomeric MCM homolog from Methanopyrus kandleri, the first crystallographic structure of a full-length MCM. We also present an 18 A cryo-electron microscopy reconstruction of the hexameric MCM from Methanothermobacter thermautotrophicus, and fit the atomic resolution crystal structure into the reconstruction in order to generate an atomic model for the oligomeric assembly. These structural data reveal a distinct active site topology consisting of a unique arrangement of critical determinants. The structures also provide a molecular framework for understanding the functional contributions of trans-acting elements that facilitate intersubunit crosstalk in response to DNA binding and ATP hydrolysis.


    Organizational Affiliation

    Department of Biochemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave, Urbana, IL 61801, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Predicted ATPase involved in replication control, Cdc46/Mcm familyA506Methanopyrus kandleri AV19Mutation(s): 2 
Gene Names: mcm2_2MK1120
UniProt
Find proteins for Q8TWB5 (Methanopyrus kandleri (strain AV19 / DSM 6324 / JCM 9639 / NBRC 100938))
Explore Q8TWB5 
Go to UniProtKB:  Q8TWB5
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.841α = 90
b = 95.417β = 90
c = 125.374γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
HKL-2000data reduction
SHARPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2008-11-13 
  • Released Date: 2009-03-03 
  • Deposition Author(s): Bae, B., Nair, S.K.

Revision History  (Full details and data files)

  • Version 1.0: 2009-03-03
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-11-01
    Changes: Advisory, Refinement description