1OH5

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

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.294 
  • R-Value Work: 0.224 
  • R-Value Observed: 0.228 

wwPDB Validation   3D Report Full Report


This is version 1.3 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

  • DOI: 10.1093/nar/gkg677
  • Primary Citation of Related Structures:  
    1OH8, 1OH7, 1OH6, 1OH5

  • 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 by approximately 60 degrees upon protein binding ...

    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: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DNA MISMATCH REPAIR PROTEIN MUTS A, B800Escherichia coliMutation(s): 0 
Find proteins for P23909 (Escherichia coli (strain K12))
Explore P23909 
Go to UniProtKB:  P23909
Protein Feature View
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  • Reference Sequence
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(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsLengthOrganismImage
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'E30synthetic construct
Find similar nucleic acids by: 
(by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsLengthOrganismImage
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'F30synthetic construct
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP
Download Ideal Coordinates CCD File 
A
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N		 Ligand Interaction
MG
Query on MG
Download Ideal Coordinates CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.90 Å
  • R-Value Free: 0.294 
  • R-Value Work: 0.224 
  • R-Value Observed: 0.228 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 89.913α = 90
b = 91.887β = 90
c = 261.173γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-08-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance
  • Version 1.2: 2019-07-24
    Changes: Data collection
  • Version 1.3: 2020-07-29
    Changes: Derived calculations, Other, Source and taxonomy