4WMZ

S. cerevisiae CYP51 complexed with fluconazole in the active site


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.199 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Insights into Binding of the Antifungal Drug Fluconazole to Saccharomyces cerevisiae Lanosterol 14 alpha-Demethylase.

Sagatova, A.A.Keniya, M.V.Wilson, R.K.Monk, B.C.Tyndall, J.D.

(2015) Antimicrob.Agents Chemother. 59: 4982-4989

  • DOI: 10.1128/AAC.00925-15
  • Also Cited By: 5V5Z, 5JLC, 5ESN, 5ESM, 5ESL, 5ESK, 5ESJ, 5ESI, 5ESH, 5ESG, 5ESF, 5ESE, 5EAH, 5EAG, 5EAF, 5EAE, 5EAD, 5EAC, 5EAB

  • PubMed Abstract: 
  • Infections by fungal pathogens such as Candida albicans and Aspergillus fumigatus and their resistance to triazole drugs are major concerns. Fungal lanosterol 14α-demethylase belongs to the CYP51 class in the cytochrome P450 superfamily of enzymes. T ...

    Infections by fungal pathogens such as Candida albicans and Aspergillus fumigatus and their resistance to triazole drugs are major concerns. Fungal lanosterol 14α-demethylase belongs to the CYP51 class in the cytochrome P450 superfamily of enzymes. This monospanning bitopic membrane protein is involved in ergosterol biosynthesis and is the primary target of azole antifungal drugs, including fluconazole. The lack of high-resolution structural information for this drug target from fungal pathogens has been a limiting factor for the design of modified triazole drugs that will overcome resistance. Here we report the X-ray structure of full-length Saccharomyces cerevisiae lanosterol 14α-demethylase in complex with fluconazole at a resolution of 2.05 Å. This structure shows the key interactions involved in fluconazole binding and provides insight into resistance mechanisms by revealing a water-mediated hydrogen bonding network between the drug and tyrosine 140, a residue frequently found mutated to histidine or phenylalanine in resistant clinical isolates.


    Related Citations: 
    • Architecture of a single membrane spanning cytochrome P450 suggests constraints that orient the catalytic domain relative to a bilayer.
      Monk, B.C.,Tomasiak, T.M.,Keniya, M.V.,Huschmann, F.U.,Tyndall, J.D.A.,O'Connell III, J.D.,Cannon, R.D.,McDonald, J.G.,Rodriguez, A.,Finer-Moore, J.S.,Stroud, R.M.
      (2014) Proc Natl Acad Sci U S A --: 3865


    Organizational Affiliation

    Sir John Walsh Research Institute, University of Otago, Dunedin, New Zealand.,Sir John Walsh Research Institute, University of Otago, Dunedin, New Zealand Department of Oral Sciences, Faculty of Dentistry, University of Otago, Dunedin, New Zealand brian.monk@otago.ac.nz joel.tyndall@otago.ac.nz.,New Zealand's National School of Pharmacy, University of Otago, Dunedin, New Zealand brian.monk@otago.ac.nz joel.tyndall@otago.ac.nz.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Lanosterol 14-alpha demethylase
A
539Saccharomyces cerevisiae (strain YJM789)Mutation(s): 0 
Gene Names: ERG11
Find proteins for A6ZSR0 (Saccharomyces cerevisiae (strain YJM789))
Go to UniProtKB:  A6ZSR0
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

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

Download SDF File 
Download CCD File 
A
2-(2,4-DIFLUOROPHENYL)-1,3-DI(1H-1,2,4-TRIAZOL-1-YL)PROPAN-2-OL
FLUCONAZOLE; ALPHA-(2,4-DIFLUOROPHENYL)-ALPHA-(1H-1,2,4-TRIAZOLE-1-YLMETHYL)-1H-1,2,4-TRIAZOLE-1-ETHANOL; ELAZOR; TRIFLUCAN; BIOZOLENE
C13 H12 F2 N6 O
RFHAOTPXVQNOHP-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
TPFKd: 74 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.199 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 77.240α = 90.00
b = 65.210β = 98.43
c = 81.020γ = 90.00
Software Package:
Software NamePurpose
Aimlessdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Health Research CouncilNew Zealand--
Marsden FundNew Zealand--

Revision History 

  • Version 1.0: 2015-07-01
    Type: Initial release
  • Version 1.1: 2015-07-29
    Type: Database references
  • Version 1.2: 2017-09-20
    Type: Data collection, Database references, Derived calculations, Source and taxonomy