2NLK

Crystal structure of D1 and D2 catalytic domains of human Protein Tyrosine Phosphatase Gamma (D1+D2 PTPRG)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.237 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Large-scale structural analysis of the classical human protein tyrosine phosphatome.

Barr, A.J.Ugochukwu, E.Lee, W.H.King, O.N.Filippakopoulos, P.Alfano, I.Savitsky, P.Burgess-Brown, N.A.Muller, S.Knapp, S.

(2009) Cell 136: 352-363

  • DOI: 10.1016/j.cell.2008.11.038
  • Primary Citation of Related Structures:  2AHS, 2B49, 2CFV, 2GJT, 2H4V, 2I75, 2JJD, 2NZ6, 2OC3, 2OOQ, 2P6X, 2PA5, 2QEP, 3B7O, 2CJZ
  • Also Cited By: 4ICZ, 4NND

  • PubMed Abstract: 
  • Protein tyrosine phosphatases (PTPs) play a critical role in regulating cellular functions by selectively dephosphorylating their substrates. Here we present 22 human PTP crystal structures that, together with prior structural knowledge, enable a com ...

    Protein tyrosine phosphatases (PTPs) play a critical role in regulating cellular functions by selectively dephosphorylating their substrates. Here we present 22 human PTP crystal structures that, together with prior structural knowledge, enable a comprehensive analysis of the classical PTP family. Despite their largely conserved fold, surface properties of PTPs are strikingly diverse. A potential secondary substrate-binding pocket is frequently found in phosphatases, and this has implications for both substrate recognition and development of selective inhibitors. Structural comparison identified four diverse catalytic loop (WPD) conformations and suggested a mechanism for loop closure. Enzymatic assays revealed vast differences in PTP catalytic activity and identified PTPD1, PTPD2, and HDPTP as catalytically inert protein phosphatases. We propose a "head-to-toe" dimerization model for RPTPgamma/zeta that is distinct from the "inhibitory wedge" model and that provides a molecular basis for inhibitory regulation. This phosphatome resource gives an expanded insight into intrafamily PTP diversity, catalytic activity, substrate recognition, and autoregulatory self-association.


    Organizational Affiliation

    University of Oxford, Structural Genomics Consortium, Old Road Campus Research Building, Roosevelt Drive, Headington, Oxford, OX3 7DQ, UK. alastair.barr@sgc.ox.ac.uk




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein tyrosine phosphatase, receptor type, G variant (Fragment)
A
627Homo sapiensGene Names: PTPRG (PTPG)
EC: 3.1.3.48
Find proteins for P23470 (Homo sapiens)
Go to Gene View: PTPRG
Go to UniProtKB:  P23470
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.237 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 118.510α = 90.00
b = 133.996β = 90.00
c = 59.084γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
PHASERphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
CrystalCleardata collection
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-11-21
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Advisory, Version format compliance