1OKX

Binding Structure of Elastase Inhibitor Scyptolin A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.210 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Binding Structure of Elastase Inhibitor Scyptolin A

Matern, U.Schleberger, C.Jelakovic, S.Weckesser, J.Schulz, G.E.

(2003) Chem Biol 10: 997

  • DOI: 10.1016/j.chembiol.2003.10.001
  • Primary Citation of Related Structures:  
    1OKX

  • PubMed Abstract: 
  • Natural bioactive compounds are of general interest to pharmaceutical research because they may be used as leads in drug development campaigns. Among them, scyptolin A and B from Scytonema hofmanni PCC 7110 are known to inhibit porcine pancreatic elastase, which in turn resembles the attractive drug target neutrophil elastase ...

    Natural bioactive compounds are of general interest to pharmaceutical research because they may be used as leads in drug development campaigns. Among them, scyptolin A and B from Scytonema hofmanni PCC 7110 are known to inhibit porcine pancreatic elastase, which in turn resembles the attractive drug target neutrophil elastase. The crystal structure of scyptolin A as bound to pancreatic elastase was solved at 2.8 A resolution. The inhibitor occupies the most prominent subsites S1 through S4 of the elastase and prevents a hydrolytic attack by covering the active center with its rigid ring structure. The observed binding structure may help to design potent elastase inhibitors.


    Organizational Affiliation

    Institut für Biologie II, Mikrobiologie, Albert-Ludwigs-Universität, Schänzlestrasse 1, D-79104 Freiburg im Breisgau, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ELASTASE 1A, B240Sus scrofaMutation(s): 0 
Gene Names: CELA1ELA1
EC: 3.4.21.36
UniProt
Find proteins for P00772 (Sus scrofa)
Explore P00772 
Go to UniProtKB:  P00772
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
SCYPTOLIN AC, D8Scytonema hofmanniiMutation(s): 0 
Protein Feature View
Expand
  • Reference Sequence
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 2
IDChainsNameType/Class2D Diagram3D Interactions
PRD_000187
Query on PRD_000187
C, DSCYPTOLIN APolypeptide /  Inhibitor Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.210 
  • Space Group: P 6 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 155.89α = 90
b = 155.89β = 90
c = 91.03γ = 120
Software Package:
Software NamePurpose
CNSrefinement
XDSdata reduction
XSCALEdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-10-24
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
  • Version 1.2: 2012-11-30
    Changes: Other
  • Version 1.3: 2018-06-13
    Changes: Data collection, Structure summary
  • Version 1.4: 2019-07-31
    Changes: Advisory, Data collection, Derived calculations