1J4X

HUMAN VH1-RELATED DUAL-SPECIFICITY PHOSPHATASE C124S MUTANT-PEPTIDE COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.192 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for the recognition of a bisphosphorylated MAP kinase peptide by human VHR protein Phosphatase.

Schumacher, M.A.Todd, J.L.Rice, A.E.Tanner, K.G.Denu, J.M.

(2002) Biochemistry 41: 3009-3017

  • DOI: 10.1021/bi015799l
  • Primary Citation of Related Structures:  
    1J4X

  • PubMed Abstract: 
  • Human VHR (vaccinia H1 related phosphatase) is a member of the dual-specificity phosphatases (DSPs) that often act on bisphosphorylated protein substrates. Unlike most DSPs, VHR displays a strong preference for dephosphorylating phosphotyrosine residues over phosphothreonine residues ...

    Human VHR (vaccinia H1 related phosphatase) is a member of the dual-specificity phosphatases (DSPs) that often act on bisphosphorylated protein substrates. Unlike most DSPs, VHR displays a strong preference for dephosphorylating phosphotyrosine residues over phosphothreonine residues. Here we describe the 2.75 A crystal structure of the C124S inactive VHR mutant in complex with a bisphosphorylated peptide corresponding to the MAP kinase activation lip. This structure and subsequent biochemical studies revealed the basis for the strong preference for hydrolyzing phosphotyrosine within bisphosphorylated substrates containing -pTXpY-. In the structure, the two phospho residues are oriented into distinct pockets; the phosphotyrosine is bound in the exposed yet deep active site cleft while the phosphothreonine is loosely tethered into a nearby basic pocket containing Arg(158). As this structure is the first substrate-enzyme complex reported for the DSP family of enzymes, these results provide the first glimpse into how DSPs bind their protein substrates.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Oregon Health and Science University, Portland, Oregon 97201-3098, USA. schumacn@ohsu.edu



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DUAL SPECIFICITY PROTEIN PHOSPHATASE 3 A184Homo sapiensMutation(s): 1 
Gene Names: DUSP3VHR
EC: 3.1.3.48 (PDB Primary Data), 3.1.3.16 (UniProt)
Find proteins for P51452 (Homo sapiens)
Explore P51452 
Go to UniProtKB:  P51452
NIH Common Fund Data Resources
PHAROS:  P51452
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
DDE(AHP)(TPO)G(PTR)VATR D11N/AMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  3 Unique
IDChainsTypeFormula2D DiagramParent
AHP
Query on AHP
DL-PEPTIDE LINKINGC7 H15 N O2ALA
PTR
Query on PTR
DL-PEPTIDE LINKINGC9 H12 N O6 PTYR
TPO
Query on TPO
DL-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.75 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.192 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 34.39α = 90
b = 55.77β = 90
c = 101.13γ = 90
Software Package:
Software NamePurpose
MERLOTphasing
TNTrefinement
MOSFLMdata reduction
CCP4data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-12-19
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance