4DUU

The X-ray Crystal Structure of Full-Length type I Human Plasminogen


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 5.2 Å
  • R-Value Free: 0.312 
  • R-Value Work: 0.268 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The X-ray crystal structure of full-length human plasminogen

Law, R.H.P.Caradoc-Davies, T.Cowieson, N.Horvath, A.J.Quek, A.J.Encarnacao, J.A.Steer, D.Cowan, A.Zhang, Q.Lu, B.G.C.Pike, R.N.Smith, A.I.Coughlin, P.B.Whisstock, J.C.

(2012) Cell Rep 1: 185-190

  • DOI: 10.1016/j.celrep.2012.02.012
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Plasminogen is the proenzyme precursor of the primary fibrinolytic protease plasmin. Circulating plasminogen, which comprises a Pan-apple (PAp) domain, five kringle domains (KR1-5), and a serine protease (SP) domain, adopts a closed, activation-resis ...

    Plasminogen is the proenzyme precursor of the primary fibrinolytic protease plasmin. Circulating plasminogen, which comprises a Pan-apple (PAp) domain, five kringle domains (KR1-5), and a serine protease (SP) domain, adopts a closed, activation-resistant conformation. The kringle domains mediate interactions with fibrin clots and cell-surface receptors. These interactions trigger plasminogen to adopt an open form that can be cleaved and converted to plasmin by tissue-type and urokinase-type plasminogen activators. Here, the structure of closed plasminogen reveals that the PAp and SP domains, together with chloride ions, maintain the closed conformation through interactions with the kringle array. Differences in glycosylation alter the position of KR3, although in all structures the loop cleaved by plasminogen activators is inaccessible. The ligand-binding site of KR1 is exposed and likely governs proenzyme recruitment to targets. Furthermore, analysis of our structure suggests that KR5 peeling away from the PAp domain may initiate plasminogen conformational change.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, Monash University, Clayton, Melbourne, VIC 3800 Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Plasminogen
A
791Homo sapiensMutation(s): 0 
Gene Names: PLG
EC: 3.4.21.7
Find proteins for P00747 (Homo sapiens)
Go to Gene View: PLG
Go to UniProtKB:  P00747
Experimental Data & Validation

Experimental Data

Unit Cell:
Length (Å)Angle (°)
a = 110.120α = 90.00
b = 110.120β = 90.00
c = 234.815γ = 90.00
Software Package:
Software NamePurpose
ADSCdata collection
SCALAdata scaling
XDSdata reduction
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-03-28
    Type: Initial release
  • Version 1.1: 2012-04-04
    Type: Structure summary
  • Version 1.2: 2013-06-26
    Type: Database references