2O8F

human MutSalpha (MSH2/MSH6) bound to DNA with a single base T insert


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.25 Å
  • R-Value Free: 0.293 
  • R-Value Work: 0.243 
  • R-Value Observed: 0.246 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of the Human MutSalpha DNA Lesion Recognition Complex.

Warren, J.J.Pohlhaus, T.J.Changela, A.Iyer, R.R.Modrich, P.L.Beese, L.S.

(2007) Mol Cell 26: 579-592

  • DOI: 10.1016/j.molcel.2007.04.018
  • Primary Citation of Related Structures:  
    2O8B, 2O8F, 2O8E, 2O8D, 2O8C

  • PubMed Abstract: 
  • Mismatch repair (MMR) ensures the fidelity of DNA replication, initiates the cellular response to certain classes of DNA damage, and has been implicated in the generation of immune diversity. Each of these functions depends on MutSalpha (MSH2*MSH6 he ...

    Mismatch repair (MMR) ensures the fidelity of DNA replication, initiates the cellular response to certain classes of DNA damage, and has been implicated in the generation of immune diversity. Each of these functions depends on MutSalpha (MSH2*MSH6 heterodimer). Inactivation of this protein complex is responsible for tumor development in about half of known hereditary nonpolyposis colorectal cancer kindreds and also occurs in sporadic tumors in a variety of tissues. Here, we describe a series of crystal structures of human MutSalpha bound to different DNA substrates, each known to elicit one of the diverse biological responses of the MMR pathway. All lesions are recognized in a similar manner, indicating that diversity of MutSalpha-dependent responses to DNA lesions is generated in events downstream of this lesion recognition step. This study also allows rigorous mapping of cancer-causing mutations and furthermore suggests structural pathways for allosteric communication between different regions within the heterodimer.


    Organizational Affiliation

    Department of Biochemistry, Duke University Medical Center, Durham, NC 27710, USA.



Macromolecules

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
DNA mismatch repair protein Msh2A934Homo sapiensMutation(s): 0 
Gene Names: MSH2
Find proteins for P43246 (Homo sapiens)
Explore P43246 
Go to UniProtKB:  P43246
NIH Common Fund Data Resources
PHAROS  P43246
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
DNA mismatch repair protein MSH6B1022Homo sapiensMutation(s): 0 
Gene Names: MSH6GTBP
Find proteins for P52701 (Homo sapiens)
Explore P52701 
Go to UniProtKB:  P52701
NIH Common Fund Data Resources
PHAROS  P52701
Protein Feature View
Expand
  • Reference Sequence
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    5'-D(*GP*AP*CP*GP*GP*CP*CP*GP*CP*CP*GP*CP*TP*AP*GP*CP*G)-3'E17N/A
    • Find similar nucleic acids by:  Sequence   |   Structure
    • Entity ID: 2
      MoleculeChainsLengthOrganismImage
      5'-D(*CP*GP*CP*TP*AP*GP*CP*GP*TP*GP*CP*GP*GP*CP*CP*GP*TP*C)-3'F18N/A
      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: 3.25 Å
      • R-Value Free: 0.293 
      • R-Value Work: 0.243 
      • R-Value Observed: 0.246 
      • Space Group: P 43 3 2
      Unit Cell:
      Length ( Å )Angle ( ˚ )
      a = 259.55α = 90
      b = 259.55β = 90
      c = 259.55γ = 90
      Software Package:
      Software NamePurpose
      SCALAdata scaling
      REFMACrefinement
      PDB_EXTRACTdata extraction
      MAR345dtbdata collection
      XDSdata reduction
      REFMACphasing

      Structure Validation

      View Full Validation Report



      Entry History 

      Deposition Data

      Revision History 

      • Version 1.0: 2007-06-05
        Type: Initial release
      • Version 1.1: 2008-05-01
        Changes: Version format compliance
      • Version 1.2: 2011-07-13
        Changes: Advisory, Refinement description, Version format compliance