1M7R

Crystal Structure of Myotubularin-related Protein-2 (MTMR2) Complexed with Phosphate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.207 

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This is version 1.4 of the entry. See complete history


Literature

Crystal structure of a phosphoinositide phosphatase, MTMR2: insights into myotubular myopathy and Charcot-Marie-Tooth syndrome

Begley, M.J.Taylor, G.S.Kim, S.-A.Veine, D.M.Dixon, J.E.Stuckey, J.A.

(2003) Mol Cell 12: 1391-1402

  • DOI: 10.1016/s1097-2765(03)00486-6
  • Primary Citation of Related Structures:  
    1LW3, 1M7R

  • PubMed Abstract: 
  • Myotubularin-related proteins are a large subfamily of protein tyrosine phosphatases (PTPs) that dephosphorylate D3-phosphorylated inositol lipids. Mutations in members of the myotubularin family cause the human neuromuscular disorders myotubular myopathy and type 4B Charcot-Marie-Tooth syndrome ...

    Myotubularin-related proteins are a large subfamily of protein tyrosine phosphatases (PTPs) that dephosphorylate D3-phosphorylated inositol lipids. Mutations in members of the myotubularin family cause the human neuromuscular disorders myotubular myopathy and type 4B Charcot-Marie-Tooth syndrome. The crystal structure of a representative member of this family, MTMR2, reveals a phosphatase domain that is structurally unique among PTPs. A series of mutants are described that exhibit altered enzymatic activity and provide insight into the specificity of myotubularin phosphatases toward phosphoinositide substrates. The structure also reveals that the GRAM domain, found in myotubularin family phosphatases and predicted to occur in approximately 180 proteins, is part of a larger motif with a pleckstrin homology (PH) domain fold. Finally, the MTMR2 structure will serve as a model for other members of the myotubularin family and provide a framework for understanding the mechanism whereby mutations in these proteins lead to disease.


    Organizational Affiliation

    Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, MI 48109, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Myotubularin-related Protein-2 AB657Homo sapiensMutation(s): 1 
Gene Names: MTMR2KIAA1073
EC: 3.1.3.64 (PDB Primary Data), 3.1.3.95 (UniProt)
Find proteins for Q13614 (Homo sapiens)
Explore Q13614 
Go to UniProtKB:  Q13614
NIH Common Fund Data Resources
PHAROS:  Q13614
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.207 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 158.25α = 90
b = 82.66β = 117.93
c = 100.13γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-10-07
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-01-31
    Changes: Advisory
  • Version 1.4: 2018-02-28
    Changes: Experimental preparation