6A8G

The crystal structure of muPAin-1-IG in complex with muPA-SPD at pH8.5


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.53 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.193 

Starting Model: experimental
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This is version 1.3 of the entry. See complete history


Literature

Suppression of Tumor Growth and Metastases by Targeted Intervention in Urokinase Activity with Cyclic Peptides.

Wang, D.Yang, Y.Jiang, L.Wang, Y.Li, J.Andreasen, P.A.Chen, Z.Huang, M.Xu, P.

(2019) J Med Chem 62: 2172-2183

  • DOI: https://doi.org/10.1021/acs.jmedchem.8b01908
  • Primary Citation of Related Structures:  
    6A8G, 6A8N

  • PubMed Abstract: 

    Urokinase-type plasminogen activator (uPA) is a diagnostic marker for breast and prostate cancers recommended by American Society for Clinical Oncology and German Breast Cancer Society. Inhibition of uPA was proposed as an efficient strategy for cancer treatments. In this study, we report peptide-based uPA inhibitors with high potency and specificity comparable to monoclonal antibodies. We revealed the binding and inhibitory mechanisms by combining crystallography, molecular dynamic simulation, and other biophysical and biochemical approaches. Besides, we showed that our peptides efficiently inhibited the invasion of cancer cells via intervening with the processes of the degradation of extracellular matrices. Furthermore, our peptides significantly suppressed the tumor growth and the cancer metastases in tumor-bearing mice. This study demonstrates that these uPA peptides are highly potent anticancer agents and reveals the mechanistic insights of these uPA inhibitors, which can be useful for developing other serine protease inhibitors.


  • Organizational Affiliation

    State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , 155 West Yangqiao Road , Fuzhou , Fujian 350002 , China.


Macromolecules

Find similar proteins by:  Sequence   |   3D Structure  

Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
muPAin-1-IGA [auth P],
D [auth E]
12Phage display vector pTDispMutation(s): 0 
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Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Urokinase-type plasminogen activator chain BB [auth A],
C [auth B]
247Mus musculusMutation(s): 1 
Gene Names: Plau
EC: 3.4.21.73
UniProt & NIH Common Fund Data Resources
Find proteins for P06869 (Mus musculus)
Explore P06869 
Go to UniProtKB:  P06869
IMPC:  MGI:97611
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP06869
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.53 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.193 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 114.01α = 90
b = 114.01β = 90
c = 103.34γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
xia2data scaling
PHASERphasing
PDB_EXTRACTdata extraction

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of ChinaChina21708043
National Natural Science Foundation of ChinaChina81572944
National Natural Science Foundation of ChinaChinaU1405229

Revision History  (Full details and data files)

  • Version 1.0: 2019-02-20
    Type: Initial release
  • Version 1.1: 2019-09-04
    Changes: Data collection, Database references
  • Version 1.2: 2023-11-22
    Changes: Data collection, Database references, Refinement description
  • Version 1.3: 2024-10-16
    Changes: Structure summary