1EAI

COMPLEX OF ASCARIS CHYMOTRPSIN/ELASTASE INHIBITOR WITH PORCINE ELASTASE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The molecular structure of the complex of Ascaris chymotrypsin/elastase inhibitor with porcine elastase.

Huang, K.Strynadka, N.C.Bernard, V.D.Peanasky, R.J.James, M.N.

(1994) Structure 2: 679-689


  • PubMed Abstract: 
  • The intestinal parasitic worm, Ascaris suum, produces a variety of protein inhibitors that defend the organism against the host's proteinases. Eight different proteins from Ascaris suum have been identified as inhibitors of serine proteinases, target ...

    The intestinal parasitic worm, Ascaris suum, produces a variety of protein inhibitors that defend the organism against the host's proteinases. Eight different proteins from Ascaris suum have been identified as inhibitors of serine proteinases, targeting chymotrypsin, elastase and trypsin. These inhibitors share 30-40% sequence identity with one another, but have virtually no sequence identity with members of any of the other families of serine proteinase inhibitors.


    Related Citations: 
    • Structure of Native Porcine Pancreatic Elastase at 1.65 Resolution
      Meyer, E.,Cole, G.,Radharkrishnan, R.
      (1988) Acta Crystallogr.,Sect.B B44: 22


    Organizational Affiliation

    Department of Biochemistry, University of Alberta, Edmonton, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (ELASTASE)
A, B
240Sus scrofaGene Names: CELA1 (ELA1)
EC: 3.4.21.36
Find proteins for P00772 (Sus scrofa)
Go to Gene View: CELA1
Go to UniProtKB:  P00772
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (CHYMOTRYPSIN/ELASTASE ISOINHIBITOR 1)
C, D
61Ascaris suumN/A
Find proteins for P07851 (Ascaris suum)
Go to UniProtKB:  P07851
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 84.020α = 90.00
b = 84.020β = 90.00
c = 190.930γ = 120.00
Software Package:
Software NamePurpose
X-GENdata scaling
TNTrefinement
AMoREphasing
X-GENdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-04-05
    Type: Initial release
  • Version 1.1: 2007-10-16
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance
  • Version 1.3: 2017-10-04
    Type: Refinement description