2WUZ

X-ray structure of CYP51 from Trypanosoma cruzi in complex with fluconazole in alternative conformation


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.220 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structural Characterization of Cyp51 from Trypanosoma Cruzi and Trypanosoma Brucei Bound to the Antifungal Drugs Posaconazole and Fluconazole

Chen, C.-K.Leung, S.S.F.Guilbert, C.Jacobson, M.Mckerrow, J.H.Podust, L.M.

(2010) PLoS Negl Trop Dis 4: E651

  • DOI: 10.1371/journal.pntd.0000651
  • Primary Citation of Related Structures:  
    2WUZ, 2WV2, 2WX2, 2X2N

  • PubMed Abstract: 
  • Chagas Disease is the leading cause of heart failure in Latin America. Current drug therapy is limited by issues of both efficacy and severe side effects. Trypansoma cruzi, the protozoan agent of Chagas Disease, is closely related to two other major ...

    Chagas Disease is the leading cause of heart failure in Latin America. Current drug therapy is limited by issues of both efficacy and severe side effects. Trypansoma cruzi, the protozoan agent of Chagas Disease, is closely related to two other major global pathogens, Leishmania spp., responsible for leishmaniasis, and Trypansoma brucei, the causative agent of African Sleeping Sickness. Both T. cruzi and Leishmania parasites have an essential requirement for ergosterol, and are thus vulnerable to inhibitors of sterol 14alpha-demethylase (CYP51), which catalyzes the conversion of lanosterol to ergosterol. Clinically employed anti-fungal azoles inhibit ergosterol biosynthesis in fungi, and specific azoles are also effective against both Trypanosoma and Leishmania parasites. However, modification of azoles to enhance efficacy and circumvent potential drug resistance has been problematic for both parasitic and fungal infections due to the lack of structural insights into drug binding.


    Organizational Affiliation

    Department of Pharmaceutical Chemistry, University of California, San Francisco, California, United States of America.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
LANOSTEROL 14-ALPHA-DEMETHYLASE, PUTATIVEAB473Trypanosoma cruziMutation(s): 0 
EC: 1.14.13.70 (PDB Primary Data), 1.14.14.154 (UniProt)
Find proteins for Q7Z1V1 (Trypanosoma cruzi (strain CL Brener))
Explore Q7Z1V1 
Go to UniProtKB:  Q7Z1V1
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download CCD File 
A, B
PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
TPF
Query on TPF

Download CCD File 
A, B
2-(2,4-DIFLUOROPHENYL)-1,3-DI(1H-1,2,4-TRIAZOL-1-YL)PROPAN-2-OL
C13 H12 F2 N6 O
RFHAOTPXVQNOHP-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.275 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.220 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.858α = 90
b = 92.574β = 102.14
c = 78.277γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-10-20
    Type: Initial release
  • Version 1.1: 2012-04-11
    Changes: Database references, Derived calculations, Non-polymer description, Refinement description, Version format compliance