8SBI

Crystal structure of human sterol 14 alpha-demethylase (CYP51) in the ligand-free state

• PDB DOI: https://doi.org/10.2210/pdb8SBI/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): Yes 
• Membrane Protein: Yes  OPM


• Deposited: 2023-04-03 Released: 2023-04-12 
• Deposition Author(s): Hargrove, T.Y., Wawrzak, Z., Lepesheva, G.I.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.73 Å
• R-Value Free: 0.246 
• R-Value Work: 0.230 
• R-Value Observed: 0.231 

Literature

Structural dynamics of sterol 14 alpha demethylases upon catalysis

Hargrove, T.Y., Wawrzak, Z., Lepesheva, G.I.

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

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 104.59 kDa 
• Atom Count: 7,299 
• Modelled Residue Count: 890 
• Deposited Residue Count: 906 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Lanosterol 14-alpha demethylase	A, B	453	Homo sapiens	Mutation(s): 2  Gene Names: CYP51A1, CYP51 EC: 1.14.14.154 Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for Q16850 (Homo sapiens) Explore Q16850  Go to UniProtKB:  Q16850
PHAROS:  Q16850 GTEx:  ENSG00000001630

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	C [auth A], D [auth B]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.73 Å
• R-Value Free: 0.246 
• R-Value Work: 0.230 
• R-Value Observed: 0.231 
• Space Group: P 2₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 143.81	α = 90
b = 55.64	β = 90
c = 103.07	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data reduction
HKL-2000	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-04-12 
Deposition Author(s): Hargrove, T.Y., Wawrzak, Z., Lepesheva, G.I.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	GM067871

Revision History  

• Version 1.0: 2023-04-12
  Type: Initial release