2FJN

The structure of phosphotyrosine phosphatase 1B in complex with compound 2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.208 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Conformation-assisted inhibition of protein-tyrosine phosphatase-1B elicits inhibitor selectivity over T-cell protein-tyrosine phosphatase.

Asante-Appiah, E.Patel, S.Desponts, C.Taylor, J.M.Lau, C.Dufresne, C.Therien, M.Friesen, R.Becker, J.W.Leblanc, Y.Kennedy, B.P.Scapin, G.

(2006) J Biol Chem 281: 8010-8015

  • DOI: 10.1074/jbc.M511827200
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • PTP-1B represents an attractive target for the treatment of type 2 diabetes and obesity. Given the role that protein phosphatases play in the regulation of many biologically relevant processes, inhibitors against PTP-1B must be not only potent, but a ...

    PTP-1B represents an attractive target for the treatment of type 2 diabetes and obesity. Given the role that protein phosphatases play in the regulation of many biologically relevant processes, inhibitors against PTP-1B must be not only potent, but also selective. It has been extremely difficult to synthesize inhibitors that are selective over the highly homologous TCPTP. We have successfully exploited the conservative Leu119 to Val substitution between the two enzymes to synthesize a PTP-1B inhibitor that is an order of magnitude more selective over TCPTP. Structural analyses of PTP-1B/inhibitor complexes show a conformation-assisted inhibition mechanism as the basis for selectivity. Such an inhibitory mechanism may be applicable to other homologous enzymes.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Merck Frosst Center for Therapeutic Research, Pointe-Claire, Dorval, Quebec H9R 4P8, Canada. ernest_asanteappiah@merck.com



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein phosphatase, non-receptor type 1
A, B
310Homo sapiensMutation(s): 0 
Gene Names: PTPN1PTP1B
EC: 3.1.3.48
Find proteins for P18031 (Homo sapiens)
Go to UniProtKB:  P18031
NIH Common Fund Data Resources
PHAROS  P18031
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
073
Query on 073

Download CCD File 
A, B
(4-{(2S,4E)-2-(1H-1,2,3-BENZOTRIAZOL-1-YL)-2-[4-(METHOXYCARBONYL)PHENYL]-5-PHENYLPENT-4-ENYL}PHENYL)(DIFLUORO)METHYLPHOSPHONIC ACID
C32 H28 F2 N3 O5 P
GWWTUJWRRCTCSI-AOCUTKQBSA-N
 Ligand Interaction
CL
Query on CL

Download CCD File 
A, B
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
73IC50 :  39   nM  PDBBind
073IC50:  45   nM  BindingDB
073IC50:  29   nM  BindingDB
073IC50:  32   nM  BindingDB
073IC50:  39   nM  Binding MOAD
073IC50:  39   nM  BindingDB
073IC50:  142   nM  BindingDB
073IC50:  39   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.208 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 87.429α = 90
b = 85.617β = 90
c = 137.272γ = 90
Software Package:
Software NamePurpose
X-GENdata scaling
X-GENdata reduction
CNXrefinement
CNXphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-01-17
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-18
    Changes: Refinement description