3T1I

Crystal Structure of Human Mre11: Understanding Tumorigenic Mutations

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.228 

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Literature

Crystal structure of human mre11: understanding tumorigenic mutations

Park, Y.B., Chae, J., Kim, Y., Cho, Y.

(2011) Structure 19: 1591-1602

  • DOI: 10.1016/j.str.2011.09.010
  • Primary Citation of Related Structures:  
    3T1I

  • PubMed Abstract: 

    • Mre11 plays an important role in repairing damaged DNA by cleaving broken ends and by providing a platform for other DNA repair proteins. Various Mre11 mutations have been identified in several types of cancer. We have determined the crystal structure of the human Mre11 core (hMre11), which contains the nuclease and capping domains ...

    Mre11 plays an important role in repairing damaged DNA by cleaving broken ends and by providing a platform for other DNA repair proteins. Various Mre11 mutations have been identified in several types of cancer. We have determined the crystal structure of the human Mre11 core (hMre11), which contains the nuclease and capping domains. hMre11 dimerizes through the interfaces between loop β3-α3 from one Mre11 and loop β4-β5 from another Mre11, and between loop α2-β3 from one Mre11 and helices α2 and α3 from another Mre11, and assembles into a completely different dimeric architecture compared with bacterial or archaeal Mre11 homologs. Nbs1 binds to the region containing loop α2-β3 which participates in dimerization. The hMre11 structure in conjunction with biochemical analyses reveals that many tumorigenic mutations are primarily associated with Nbs1 binding and partly with nuclease activities, providing a framework for understanding how mutations inactivate Mre11.

    Organizational Affiliation: 

    Department of Life Science, Pohang University of Science and Technology, Pohang 790-784, South Korea.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Double-strand break repair protein MRE11A A, B, C, D431Homo sapiensMutation(s): 0 
Gene Names: HNGS1, MRE11, MRE11A
EC: 3.1
Find proteins for P49959 (Homo sapiens)
Explore P49959 
Go to UniProtKB:  P49959
NIH Common Fund Data Resources
PHAROS:  P49959
GTEx:  ENSG00000020922
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DTT
Query on DTT
Download Ideal Coordinates CCD File 
A
2,3-DIHYDROXY-1,4-DITHIOBUTANE
C4 H10 O2 S2
VHJLVAABSRFDPM-IMJSIDKUSA-N		 Ligand Interaction
GOL
Query on GOL
Download Ideal Coordinates CCD File 
A, C, D
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N		 Ligand Interaction
MN
Query on MN
Download Ideal Coordinates CCD File 
A, B, C, D
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N		 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE		A,B,C,DL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.227 
  • R-Value Observed: 0.228 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 134.79α = 90
b = 135.21β = 90
c = 135.38γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
CNSrefinement
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
CNSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-11-30
    Type: Initial release