1BKN

CRYSTAL STRUCTURE OF AN N-TERMINAL 40KD FRAGMENT OF E. COLI DNA MISMATCH REPAIR PROTEIN MUTL


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.300 
  • R-Value Work: 0.248 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure and ATPase activity of MutL: implications for DNA repair and mutagenesis.

Ban, C.Yang, W.

(1998) Cell 95: 541-552


  • PubMed Abstract: 
  • MutL and its homologs are essential for DNA mismatch repair. Mutations in genes encoding human homologs of MutL cause multiorgan cancer susceptibility. We have determined the crystal structure of a 40 kDa N-terminal fragment of E. coli MutL that reta ...

    MutL and its homologs are essential for DNA mismatch repair. Mutations in genes encoding human homologs of MutL cause multiorgan cancer susceptibility. We have determined the crystal structure of a 40 kDa N-terminal fragment of E. coli MutL that retains all of the conserved residues in the MutL family. The structure of MutL is homologous to that of an ATPase-containing fragment of DNA gyrase. We have demonstrated that MutL binds and hydrolyzes ATP to ADP and Pi. Mutations in the MutL family that cause deficiencies in DNA mismatch repair and a predisposition to cancer mainly occur in the putative ATP-binding site. We provide evidence that the flexible, yet conserved, loops surrounding this ATP-binding site undergo conformational changes upon ATP hydrolysis thereby modulating interactions between MutL and other components of the repair machinery.


    Organizational Affiliation

    Laboratory of Molecular Biology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland 20892, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MUTL
A, B
352Escherichia coli (strain K12)Gene Names: mutL
Find proteins for P23367 (Escherichia coli (strain K12))
Go to UniProtKB:  P23367
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.300 
  • R-Value Work: 0.248 
  • Space Group: I 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 87.200α = 90.00
b = 93.200β = 90.00
c = 221.700γ = 90.00
Software Package:
Software NamePurpose
CCP4data scaling
X-PLORrefinement
MAMAphasing
MAMAmodel building
HKLdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1998-07-09 
  • Released Date: 1999-05-11 
  • Deposition Author(s): Yang, W., Ban, C.

Revision History 

  • Version 1.0: 1999-05-11
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance