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 

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

  • 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 opp ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Low molecular weight phosphotyrosine protein phosphatase
A
157Homo sapiensMutation(s): 0 
Gene Names: ACP1
EC: 3.1.3.48
Find proteins for P24666 (Homo sapiens)
Go to Gene View: ACP1
Go to UniProtKB:  P24666
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
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 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 31.258α = 90.00
b = 35.481β = 99.97
c = 60.375γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALEPACKdata scaling
MOLREPphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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