1ME3

High Resolution Crystal Structure Analysis Of Cruzain non-covalently Bound To A Hydroxymethyl Ketone Inhibitor (II)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.2 Å
  • R-Value Free: 0.135 
  • R-Value Work: 0.093 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal Structures of Reversible Ketone-based Inhibitors of the Cysteine Protease Cruzain

Huang, L.Brinen, L.S.Ellman, J.A.

(2003) Bioorg.Med.Chem. 11: 21-29

  • Primary Citation of Related Structures:  1ME4

  • PubMed Abstract: 
  • The crystal structures of two hydroxymethyl ketone inhibitors complexed to the cysteine protease cruzain have been determined at 1.1 and 1.2 A resolution, respectively. These high resolution crystal structures provide the first structures of non-cova ...

    The crystal structures of two hydroxymethyl ketone inhibitors complexed to the cysteine protease cruzain have been determined at 1.1 and 1.2 A resolution, respectively. These high resolution crystal structures provide the first structures of non-covalent inhibitors bound to cruzain. A series of compounds were prepared and tested based upon the structures providing further insight into the key binding interactions.


    Related Citations: 
    • THE CRYSTAL STRUCTURE OF CRUZAIN: A THERAPEUTIC TARGET FOR CHAGAS' DISEASE
      MCGRATH, M.E.,EAKIN, A.E.,ENGEL, J.C.,MCKERROW, J.H.,CRAIK, C.S.,FLETTERICK, R.J.
      (1995) J.Mol.Biol. 247: 251
    • A target within the target: probing cruzain's P1' site to define structural determinants for the Chagas' disease protease
      Brinen, L.S.,Hansell, E.,Cheng, J.,Roush, W.R.,McKerrow, J.H.,Fletterick, R.J.
      (2000) Structure 8: 831


    Organizational Affiliation

    Center for New Directions in Organic Synthesis, Department of Chemistry, University of California, Berkeley 94720, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Cruzipain
A
215Trypanosoma cruziEC: 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
P10
Query on P10

Download SDF File 
Download CCD File 
A
[1-(3-HYDROXY-2-OXO-1-PHENETHYL-PROPYLCARBAMOYL)2-PHENYL-ETHYL]-CARBAMIC ACID PYRIDIN-4-YLMETHYL ESTER
C27 H29 N3 O5
QCUBCTPTNWPFBC-ZEQRLZLVSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
P10Ki: 64.6 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.2 Å
  • R-Value Free: 0.135 
  • R-Value Work: 0.093 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 42.570α = 90.00
b = 51.590β = 116.62
c = 45.950γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
AMoREphasing
MAR345data collection
SHELXL-97refinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-12-18
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2017-10-11
    Type: Refinement description