1SEK

THE STRUCTURE OF ACTIVE SERPIN K FROM MANDUCA SEXTA AND A MODEL FOR SERPIN-PROTEASE COMPLEX FORMATION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The structure of active serpin 1K from Manduca sexta.

Li, J.Wang, Z.Canagarajah, B.Jiang, H.Kanost, M.Goldsmith, E.J.

(1999) Structure 7: 103-109

  • DOI: 10.1016/s0969-2126(99)80013-6
  • Primary Citation of Related Structures:  
    1SEK

  • PubMed Abstract: 
  • The reactive center loops (RCL) of serpins undergo large conformational changes triggered by the interaction with their target protease. Available crystallographic data suggest that the serpin RCL is polymorphic, but the relevance of the observed con ...

    The reactive center loops (RCL) of serpins undergo large conformational changes triggered by the interaction with their target protease. Available crystallographic data suggest that the serpin RCL is polymorphic, but the relevance of the observed conformations to the competent active structure and the conformational changes that occur on binding target protease has remained obscure. New high-resolution data on an active serpin, serpin 1K from the moth hornworm Manduca sexta, provide insights into how active serpins are stabilized and how conformational changes are induced by protease binding.


    Organizational Affiliation

    Department of Biochemistry, The University of Texas Southwestern Medical Center at Dallas, 5323 Harry Hines Boulevard, Dallas, Texas 75235, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
SERPIN KA378Manduca sextaMutation(s): 0 
Gene Names: serpin 1
Find proteins for Q25526 (Manduca sexta)
Explore Q25526 
Go to UniProtKB:  Q25526
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.199 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 125.96α = 90
b = 42.05β = 117.6
c = 76.05γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-03-23
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance