2OZ2

Crystal structure analysis of cruzain bound to vinyl sulfone derived inhibitor (K11777)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.157 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Vinyl sulfones as antiparasitic agents and a structural basis for drug design.

Kerr, I.D.Lee, J.H.Farady, C.J.Marion, R.Rickert, M.Sajid, M.Pandey, K.C.Caffrey, C.R.Legac, J.Hansell, E.McKerrow, J.H.Craik, C.S.Rosenthal, P.J.Brinen, L.S.

(2009) J.Biol.Chem. 284: 25697-25703

  • DOI: 10.1074/jbc.M109.014340
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Cysteine proteases of the papain superfamily are implicated in a number of cellular processes and are important virulence factors in the pathogenesis of parasitic disease. These enzymes have therefore emerged as promising targets for antiparasitic dr ...

    Cysteine proteases of the papain superfamily are implicated in a number of cellular processes and are important virulence factors in the pathogenesis of parasitic disease. These enzymes have therefore emerged as promising targets for antiparasitic drugs. We report the crystal structures of three major parasite cysteine proteases, cruzain, falcipain-3, and the first reported structure of rhodesain, in complex with a class of potent, small molecule, cysteine protease inhibitors, the vinyl sulfones. These data, in conjunction with comparative inhibition kinetics, provide insight into the molecular mechanisms that drive cysteine protease inhibition by vinyl sulfones, the binding specificity of these important proteases and the potential of vinyl sulfones as antiparasitic drugs.


    Organizational Affiliation

    Department of Cellular and Molecular Pharmacology, University of California, San Francisco, California 94158-2550, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cruzipain
A, C
215Trypanosoma cruziMutation(s): 0 
EC: 3.4.22.51
Find proteins for P25779 (Trypanosoma cruzi)
Go to UniProtKB:  P25779
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, C
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
D1R
Query on D1R

Download SDF File 
Download CCD File 
A, C
NALPHA-[(4-METHYLPIPERAZIN-1-YL)CARBONYL]-N-{(1S)-3-PHENYL-1-[2-(PHENYLSULFONYL)ETHYL]PROPYL}-L-PHENYLALANINAMIDE
C32 H40 N4 O4 S
VZSXPUDQSLKVIR-JDXGNMNLSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
D1RKd: 1930 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.95 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.157 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 134.346α = 90.00
b = 37.954β = 114.34
c = 95.202γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
REFMACrefinement
PHASERphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-02-26
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance