4PI3

Crystal structure analysis of cruzain bound to vinyl sulfone analog of WRR-483 (WRR-666)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.27 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.174 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Synthesis and Evaluation of Oxyguanidine Analogues of the Cysteine Protease Inhibitor WRR-483 against Cruzain.

Jones, B.D.Tochowicz, A.Tang, Y.Cameron, M.D.McCall, L.I.Hirata, K.Siqueira-Neto, J.L.Reed, S.L.McKerrow, J.H.Roush, W.R.

(2016) Acs Med.Chem.Lett. 7: 77-82

  • DOI: 10.1021/acsmedchemlett.5b00336
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • A series of oxyguanidine analogues of the cysteine protease inhibitor WRR-483 were synthesized and evaluated against cruzain, the major cysteine protease of the protozoan parasite Trypanosoma cruzi. Kinetic analyses of these analogues indicated that ...

    A series of oxyguanidine analogues of the cysteine protease inhibitor WRR-483 were synthesized and evaluated against cruzain, the major cysteine protease of the protozoan parasite Trypanosoma cruzi. Kinetic analyses of these analogues indicated that they have comparable potency to previously prepared vinyl sulfone cruzain inhibitors. Co-crystal structures of the oxyguanidine analogues WRR-666 (4) and WRR-669 (7) bound to cruzain demonstrated different binding interactions with the cysteine protease, depending on the aryl moiety of the P1' inhibitor subunit. Specifically, these data demonstrate that WRR-669 is bound noncovalently in the crystal structure. This represents a rare example of noncovalent inhibition of a cysteine protease by a vinyl sulfone inhibitor.


    Organizational Affiliation

    Department of Chemistry, The Scripps Research Institute , 130 Scripps Way, Jupiter, Florida 33458, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cruzipain
A, B
216Trypanosoma cruziMutation(s): 0 
EC: 3.4.22.51
Find proteins for P25779 (Trypanosoma cruzi)
Go to UniProtKB:  P25779
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
2V5
Query on 2V5

Download SDF File 
Download CCD File 
A, B
N-[(2S)-5-(carbamimidamidooxy)-1-oxo-1-{[(1E,3S)-5-phenyl-1-(phenylsulfonyl)pent-1-en-3-yl]amino}pentan-2-yl]-4-methylpiperazine-1-carboxamide
C29 H41 N7 O5 S
DZJHVBWYGRMDSW-AHWVRZQESA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.27 Å
  • R-Value Free: 0.197 
  • R-Value Work: 0.174 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 133.923α = 90.00
b = 38.669β = 113.91
c = 94.646γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
PDB_EXTRACTdata extraction
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Sharon Reed, UCSDUnited StatesU01AI077822

Revision History 

  • Version 1.0: 2014-11-12
    Type: Initial release
  • Version 1.1: 2015-03-11
    Type: Database references, Other, Structure summary
  • Version 1.2: 2016-02-10
    Type: Database references, Other