3ZMQ

Src-derived mutant peptide inhibitor complex of PTP1B


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.304 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.250 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Development of Accessible Peptidic Tool Compounds to Study the Phosphatase Ptp1B in Intact Cells.

Meyer, C.Hoeger, B.Temmerman, K.Tatarek-Nossol, M.Pogenberg, V.Bernhagen, J.Wilmanns, M.Kapurniotu, A.Kohn, M.

(2014) ACS Chem Biol 9: 769

  • DOI: https://doi.org/10.1021/cb400903u
  • Primary Citation of Related Structures:  
    3ZMP, 3ZMQ

  • PubMed Abstract: 

    Protein tyrosine phosphatases (PTPs) play crucial roles in health and disease. Chemical modulators of their activity are vital tools to study their function. An important aspect is the accessibility of these tools, which is usually limited or not existent due to the required, often complex synthesis of the molecules. We describe here a strategy for the development of cellular active inhibitors and in-cell detection tools for PTP1B as a model PTP, which plays important roles in diabetes, obesity, and cancer. The tool compounds are based on a peptide sequence from PTP1B's substrate Src, and the resulting compounds are commercially accessible through standard peptide synthesis. The peptide inhibitor is remarkably selective against a panel of PTPs. We provide the co-crystal structure of PTP1B with the sequence from Src and the optimized peptide inhibitor, showing the molecular basis of the interaction of PTP1B with part of its natural substrate and explaining the crucial interactions to enhance binding affinity, which are made possible by simple optimization of the sequence. Our approach enables the broad accessibility of PTP1B tools to researchers and has the potential for the systematic development of accessible PTP modulators to enable the study of PTPs.


  • Organizational Affiliation

    Genome Biology Unit, European Molecular Biology Laboratory , Heidelberg, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
TYROSINE-PROTEIN PHOSPHATASE NON-RECEPTOR TYPE 1329Homo sapiensMutation(s): 1 
EC: 3.1.3.48
UniProt & NIH Common Fund Data Resources
Find proteins for P18031 (Homo sapiens)
Explore P18031 
Go to UniProtKB:  P18031
PHAROS:  P18031
GTEx:  ENSG00000196396 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP18031
Sequence Annotations
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  • Reference Sequence

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
PROTO-ONCOGENE TYROSINE-PROTEIN KINASE SRCB [auth C]10Homo sapiensMutation(s): 1 
EC: 2.7.10.2
UniProt & NIH Common Fund Data Resources
Find proteins for P12931 (Homo sapiens)
Explore P12931 
Go to UniProtKB:  P12931
PHAROS:  P12931
GTEx:  ENSG00000197122 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP12931
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
FTY
Query on FTY
B [auth C]L-PEPTIDE LINKINGC10 H12 F2 N O5 PTYR
Binding Affinity Annotations 
IDSourceBinding Affinity
FTY BindingDB:  3ZMQ Ki: 2.4 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.304 
  • R-Value Work: 0.248 
  • R-Value Observed: 0.250 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 61.02α = 90
b = 61.27β = 90
c = 88.69γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-01-22
    Type: Initial release
  • Version 1.1: 2014-04-02
    Changes: Database references
  • Version 1.2: 2023-12-20
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description
  • Version 1.3: 2024-11-13
    Changes: Structure summary