1OH5

THE CRYSTAL STRUCTURE OF E. COLI MUTS BINDING TO DNA WITH A C:A MISMATCH


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.294 
  • R-Value Work: 0.224 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structures of E. Coli DNA Mismatch Repair Enzyme Muts in Complex with Different Mismatches: A Common Recognition Mode for Diverse Substrates

Natrajan, G.Lamers, M.H.Enzlin, J.H.Winterwerp, H.H.K.Perrakis, A.Sixma, T.K.

(2003) Nucleic Acids Res. 31: 4814

  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • We have refined a series of isomorphous crystal structures of the Escherichia coli DNA mismatch repair enzyme MutS in complex with G:T, A:A, C:A and G:G mismatches and also with a single unpaired thymidine. In all these structures, the DNA is kinked ...

    We have refined a series of isomorphous crystal structures of the Escherichia coli DNA mismatch repair enzyme MutS in complex with G:T, A:A, C:A and G:G mismatches and also with a single unpaired thymidine. In all these structures, the DNA is kinked by approximately 60 degrees upon protein binding. Two residues widely conserved in the MutS family are involved in mismatch recognition. The phenylalanine, Phe 36, is seen stacking on one of the mismatched bases. The same base is also seen forming a hydrogen bond to the glutamate Glu 38. This hydrogen bond involves the N7 if the base stacking on Phe 36 is a purine and the N3 if it is a pyrimidine (thymine). Thus, MutS uses a common binding mode to recognize a wide range of mismatches.


    Related Citations: 
    • The Crystal Structure of DNA Mismatch Repair Protein Muts Binding to a G X T Mismatch
      Lamers, M.H.,Perrakis, A.,Enzlin, J.H.,Winterwerp, H.H.,De Wind, N.,Sixma, T.K.
      (2000) Nature 407: 711


    Organizational Affiliation

    Division of Molecular Carcinogenesis, The Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA MISMATCH REPAIR PROTEIN MUTS
A, B
800Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: mutS (fdv)
Find proteins for P23909 (Escherichia coli (strain K12))
Go to UniProtKB:  P23909
Entity ID: 2
MoleculeChainsLengthOrganism
5'-D(*AP*GP*CP*TP*GP*CP*CP*AP*CP*GP *CP*AP*CP*CP*AP*GP*TP*GP*TP*CP*AP*GP*CP*GP*TP *CP*CP*TP*AP*T)-3'E30N/A
Entity ID: 3
MoleculeChainsLengthOrganism
5'-D(*AP*TP*AP*GP*GP*AP*CP*GP*CP*TP *GP*AP*CP*AP*CP*TP*GP*GP*TP*GP*CP*AP*TP*GP*GP *CP*AP*GP*CP*T)-3'F30N/A
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download SDF File 
Download CCD File 
A
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.294 
  • R-Value Work: 0.224 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 89.913α = 90.00
b = 91.887β = 90.00
c = 261.173γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
DENZOdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-08-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance