46QQ | pdb_000046qq

S. cerevisiae CYP51 complexed with Ravuconazole-tetrazole

• PDB DOI: https://doi.org/10.2210/pdb46QQ/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Saccharomyces cerevisiae YJM789
• Expression System: Saccharomyces cerevisiae
• Mutation(s): No 


• Deposited: 2026-10-08 Released: 2026-11-11 
• Deposition Author(s): Tyndall, J.D.A., Fellner, M., Monk, B.C.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.72 Å
• R-Value Free: 
  0.244 (Depositor), 0.244 (DCC) 
• R-Value Work: 
  0.190 (Depositor), 0.190 (DCC) 
• R-Value Observed: 
  0.194 (Depositor) 

Starting Model: experimental

Literature

S. cerevisiae CYP51 complexed with Ravuconazole-tetrazole

Tyndall, J.D.A.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 62.94 kDa 
• Atom Count: 4,348 
• Modeled Residue Count: 527 
• Deposited Residue Count: 539 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
sterol 14alpha-demethylase	A	539	Saccharomyces cerevisiae YJM789	Mutation(s): 0  Gene Names: ERG11, SCY_2394 EC: 1.14.14.154

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM (Subject of Investigation/LOI)	B [auth A]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
A1MKI (Subject of Investigation/LOI)	C [auth A]	4-[2-[(2~{R},3~{R})-3-[2,4-bis(fluoranyl)phenyl]-3-oxidanyl-4-(1,2,3,4-tetrazol-1-yl)butan-2-yl]-1,3-thiazol-4-yl]benzenecarbonitrile C21 H16 F2 N6 O S HLFFFABQHGTLQU-YEJXKQKISA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.72 Å
• R-Value Free:  0.244 (Depositor), 0.244 (DCC) 
• R-Value Work:  0.190 (Depositor), 0.190 (DCC) 
• R-Value Observed: 0.194 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 78.927	α = 90
b = 67.638	β = 98.97
c = 81.594	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
Aimless	data scaling
XDS	data reduction
PHASER	phasing
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-11-11 
Deposition Author(s): Tyndall, J.D.A., Fellner, M., Monk, B.C.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2026-11-11
  Type: Initial release