1XWW

Crystal Structure of Human B-form Low Molecular Weight Phosphotyrosyl Phosphatase at 1.6 Angstrom Resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.63 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.164 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of the human B-form low molecular weight phosphotyrosyl phosphatase at 1.6-A resolution.

Zabell, A.P.Schroff, A.D.Bain, B.E.Van Etten, R.L.Wiest, O.Stauffacher, C.V.

(2006) J Biol Chem 281: 6520-6527

  • DOI: 10.1074/jbc.M506285200
  • Primary Citation of Related Structures:  
    1XWW

  • PubMed Abstract: 
  • The crystal structure of HPTP-B, a human isoenzyme of the low molecular weight phosphotyrosyl phosphatase (LMW PTPase) is reported here at a resolution of 1.6 A. This high resolution structure of the second human LMW PTPase isoenzyme provides the opportunity to examine the structural basis of different substrate and inhibitor/activator responses ...

    The crystal structure of HPTP-B, a human isoenzyme of the low molecular weight phosphotyrosyl phosphatase (LMW PTPase) is reported here at a resolution of 1.6 A. This high resolution structure of the second human LMW PTPase isoenzyme provides the opportunity to examine the structural basis of different substrate and inhibitor/activator responses. The crystal packing of HPTP-B positions a normally surface-exposed arginine in a position equivalent to the tyrosyl substrate. A comparison of all deposited crystallographic coordinates of these PTPases reveals three atomic positions within the active site cavity occupied by hydrogen bond donor or acceptor atoms on bound molecules, suggesting useful design elements for synthetic inhibitors. A selection of inhibitor and activator molecules as well as small molecule and peptide substrates were tested against each human isoenzyme. These results along with the crystal packing seen in HPTP-B suggest relevant sequence elements in the currently unknown target sequence.


    Organizational Affiliation

    Department of Biological Sciences and the Purdue Cancer Center, Purdue University, West Lafayette, Indiana 47907-1392, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Low molecular weight phosphotyrosine protein phosphataseA157Homo sapiensMutation(s): 0 
Gene Names: ACP1
EC: 3.1.3.48 (PDB Primary Data), 3.1.3.2 (PDB Primary Data)
UniProt & NIH Common Fund Data Resources
Find proteins for P24666 (Homo sapiens)
Explore P24666 
Go to UniProtKB:  P24666
PHAROS:  P24666
GTEx:  ENSG00000143727 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP24666
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
B [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

Download Ideal Coordinates CCD File 
C [auth A]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.63 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.158 
  • R-Value Observed: 0.164 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 31.258α = 90
b = 35.481β = 99.97
c = 60.375γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-11-01
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Non-polymer description, Version format compliance