4FMN

Structure of the C-terminal domain of the Saccharomyces cerevisiae MUTL alpha (MLH1/PMS1) heterodimer bound to a fragment of NTG2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.69 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.169 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the MutL alpha C-terminal domain reveals how Mlh1 contributes to Pms1 endonuclease site.

Gueneau, E.Dherin, C.Legrand, P.Tellier-Lebegue, C.Gilquin, B.Bonnesoeur, P.Londino, F.Quemener, C.Le Du, M.H.Marquez, J.A.Moutiez, M.Gondry, M.Boiteux, S.Charbonnier, J.B.

(2013) Nat.Struct.Mol.Biol. 20: 461-468

  • DOI: 10.1038/nsmb.2511
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Mismatch-repair factors have a prominent role in surveying eukaryotic DNA-replication fidelity and in ensuring correct meiotic recombination. These functions depend on MutL-homolog heterodimers with Mlh1. In humans, MLH1 mutations underlie half of he ...

    Mismatch-repair factors have a prominent role in surveying eukaryotic DNA-replication fidelity and in ensuring correct meiotic recombination. These functions depend on MutL-homolog heterodimers with Mlh1. In humans, MLH1 mutations underlie half of hereditary nonpolyposis colorectal cancers (HNPCCs). Here we report crystal structures of the MutLα (Mlh1-Pms1 heterodimer) C-terminal domain (CTD) from Saccharomyces cerevisiae, alone and in complex with fragments derived from Mlh1 partners. These structures reveal structural rearrangements and additional domains in MutLα as compared to the bacterial MutL counterparts and show that the strictly conserved C terminus of Mlh1 forms part of the Pms1 endonuclease site. The structures of the ternary complexes between MutLα(CTD) and Exo1 or Ntg2 fragments reveal the binding mode of the MIP-box motif shared by several Mlh1 partners. Finally, the structures provide a rationale for the deleterious impact of MLH1 mutations in HNPCCs.


    Organizational Affiliation

    Unité Mixte de Recherche 8221, Commissariat à l'Energie Atomique, Centre National de la Recherche Scientifique, Institut de Biologie et Technologies de Saclay, Gif-sur-Yvette, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA mismatch repair protein MLH1
A
288Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: MLH1 (PMS2)
Find proteins for P38920 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: MLH1
Go to UniProtKB:  P38920
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
DNA mismatch repair protein PMS1
B
240Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: PMS1
Find proteins for P14242 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: PMS1
Go to UniProtKB:  P14242
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
DNA repair peptide
C
9Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: NTG2 (SCR2)
EC: 3.2.2.-, 4.2.99.18
Find proteins for Q08214 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q08214
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A, B
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
ACE
Query on ACE
C
NON-POLYMERC2 H4 O

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.69 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.169 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 190.940α = 90.00
b = 66.300β = 90.15
c = 74.110γ = 90.00
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata scaling
XDSdata reduction
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-02-20
    Type: Initial release
  • Version 1.1: 2013-02-27
    Type: Structure summary
  • Version 1.2: 2013-08-28
    Type: Database references