1ATH

THE INTACT AND CLEAVED HUMAN ANTITHROMBIN III COMPLEX AS A MODEL FOR SERPIN-PROTEINASE INTERACTIONS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Work: 0.179 
  • R-Value Observed: 0.179 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

The intact and cleaved human antithrombin III complex as a model for serpin-proteinase interactions.

Schreuder, H.A.de Boer, B.Dijkema, R.Mulders, J.Theunissen, H.J.Grootenhuis, P.D.Hol, W.G.

(1994) Nat Struct Biol 1: 48-54

  • DOI: 10.1038/nsb0194-48
  • Primary Citation of Related Structures:  
    1ATH

  • PubMed Abstract: 
  • Antithrombin is a member of the serine proteinase inhibitor (serpin) family which contain a flexible reactive site loop that interacts with, and is cleaved by the target proteinase. In cleaved and latent serpins, the reactive site loop is inserted into a large central beta-sheet in the same molecule, whereas in ovalbumin, a nonfunctional serpin, the reactive site loop is completely exposed and in an alpha-helical conformation ...

    Antithrombin is a member of the serine proteinase inhibitor (serpin) family which contain a flexible reactive site loop that interacts with, and is cleaved by the target proteinase. In cleaved and latent serpins, the reactive site loop is inserted into a large central beta-sheet in the same molecule, whereas in ovalbumin, a nonfunctional serpin, the reactive site loop is completely exposed and in an alpha-helical conformation. However, in neither conformation can the reactive site loop bind to target proteinases. Here we report the structure of an intact and cleaved human antithrombin complex. The intact reactive site loop is in a novel conformation that seems well suited for interaction with proteinases such as thrombin and blood coagulation factor Xa.


    Related Citations: 
    • Crystallization and Preliminary X-Ray Analysis of Human Antithrombin III
      Schreuder, H.A., De Boer, B., Pronk, S., Hol, W.G.J., Dijkema, R., Mulders, J., Theunissen, H.J.M.
      (1993) J Mol Biol 229: 249

    Organizational Affiliation

    BIOSON Research Institute, University of Groningen, Nijenborgh, The Netherlands.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ANTITHROMBIN IIIA, B432Homo sapiensMutation(s): 0 
Gene Names: SERPINC1AT3PRO0309
Find proteins for P01008 (Homo sapiens)
Explore P01008 
Go to UniProtKB:  P01008
NIH Common Fund Data Resources
PHAROS:  P01008
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Work: 0.179 
  • R-Value Observed: 0.179 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.95α = 90
b = 101.17β = 105.96
c = 69.519γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1995-02-07
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-11-29
    Changes: Derived calculations, Other