4LXJ

Saccharomyces cerevisiae lanosterol 14-alpha demethylase with lanosterol bound


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 

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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

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.O'Connell, 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 111: 3865-3870

  • DOI: 10.1073/pnas.1324245111
  • Primary Citation of Related Structures:  
    4LXJ, 5EQB

  • PubMed Abstract: 
  • Bitopic integral membrane proteins with a single transmembrane helix play diverse roles in catalysis, cell signaling, and morphogenesis. Complete monospanning protein structures are needed to show how interaction between the transmembrane helix and catalytic domain might influence association with the membrane and function ...

    Bitopic integral membrane proteins with a single transmembrane helix play diverse roles in catalysis, cell signaling, and morphogenesis. Complete monospanning protein structures are needed to show how interaction between the transmembrane helix and catalytic domain might influence association with the membrane and function. We report crystal structures of full-length Saccharomyces cerevisiae lanosterol 14α-demethylase, a membrane monospanning cytochrome P450 of the CYP51 family that catalyzes the first postcyclization step in ergosterol biosynthesis and is inhibited by triazole drugs. The structures reveal a well-ordered N-terminal amphipathic helix preceding a putative transmembrane helix that would constrain the catalytic domain orientation to lie partly in the lipid bilayer. The structures locate the substrate lanosterol, identify putative substrate and product channels, and reveal constrained interactions with triazole antifungal drugs that are important for drug design and understanding drug resistance.


    Organizational Affiliation

    Sir John Walsh Research Institute, Department of Oral Sciences, Faculty of Dentistry, and School of Pharmacy, University of Otago, Dunedin 9054, New Zealand.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Lanosterol 14-alpha demethylaseA536Saccharomyces cerevisiaeMutation(s): 0 
Gene Names: ERG11CYP51YHR007C
EC: 1.14.13.70 (PDB Primary Data), 1.14.14.154 (UniProt)
Membrane Entity: Yes 
UniProt
Find proteins for P10614 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P10614 
Go to UniProtKB:  P10614
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HEM (Subject of Investigation/LOI)
Query on HEM

Download Ideal Coordinates CCD File 
B [auth A]PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
LAN (Subject of Investigation/LOI)
Query on LAN

Download Ideal Coordinates CCD File 
C [auth A]LANOSTEROL
C30 H50 O
CAHGCLMLTWQZNJ-BQNIITSRSA-N
 Ligand Interaction
OXY
Query on OXY

Download Ideal Coordinates CCD File 
D [auth A]OXYGEN MOLECULE
O2
MYMOFIZGZYHOMD-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.195 
  • R-Value Observed: 0.197 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 78.213α = 90
b = 67.005β = 99.54
c = 80.378γ = 90
Software Package:
Software NamePurpose
Blu-Icedata collection
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment  



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-01-29
    Type: Initial release
  • Version 1.1: 2014-02-05
    Changes: Structure summary
  • Version 1.2: 2014-03-26
    Changes: Database references