Plasminogen activator inhibitor-1

Experimental Data Snapshot

  • Resolution: 2.99 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.247 

wwPDB Validation   3D Report Full Report

This is version 1.5 of the entry. See complete history


The active conformation of plasminogen activator inhibitor 1, a target for drugs to control fibrinolysis and cell adhesion.

Sharp, A.M.Stein, P.E.Pannu, N.S.Carrell, R.W.Berkenpas, M.B.Ginsburg, D.Lawrence, D.A.Read, R.J.

(1999) Structure 7: 111-118

  • DOI: https://doi.org/10.1016/S0969-2126(99)80018-5
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Plasminogen activator inhibitor 1 (PAI-1) is a serpin that has a key role in the control of fibrinolysis through proteinase inhibition. PAI-1 also has a role in regulating cell adhesion processes relevant to tissue remodeling and metastasis; this role is mediated by its binding to the adhesive glycoprotein vitronectin rather than by proteinase inhibition. Active PAI-1 is metastable and spontaneously transforms to an inactive latent conformation. Previous attempts to crystallize the active conformation of PAI-1 have failed.

  • Organizational Affiliation

    Departments of Biochemistry, 1-41 Medical Sciences Building, University of Alberta, Edmonton, Alberta T6G 2H7, Canada.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B, C, D
379Homo sapiensMutation(s): 4 
UniProt & NIH Common Fund Data Resources
Find proteins for P05121 (Homo sapiens)
Explore P05121 
Go to UniProtKB:  P05121
GTEx:  ENSG00000106366 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP05121
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.99 Å
  • R-Value Free: 0.292 
  • R-Value Work: 0.247 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.472α = 90.97
b = 74.93β = 93.33
c = 103.691γ = 115.94
Software Package:
Software NamePurpose
X-GENdata scaling
BIOMOLdata reduction
X-GENdata reduction
BIOMOLdata scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-12-11
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-04
    Changes: Refinement description
  • Version 1.4: 2021-11-03
    Changes: Database references
  • Version 1.5: 2023-12-27
    Changes: Data collection