9U53 | pdb_00009u53

Crystal structure of the CYP154C2 Q230A from Streptomyces avermitilis

• PDB DOI: https://doi.org/10.2210/pdb9U53/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Streptomyces avermitilis
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2025-03-20 Released: 2025-09-24 
• Deposition Author(s): Xu, L.H.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.97 Å
• R-Value Free: 
  0.234 (Depositor), 0.242 (DCC) 
• R-Value Work: 
  0.178 (Depositor), 0.189 (DCC) 
• R-Value Observed: 
  0.181 (Depositor) 

Starting Model: experimental

Literature

Crystal structure of CYP154C2 Q230A from Streptomyces avermitilis

Yang, J., Xu, L.H.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 46.17 kDa 
• Atom Count: 3,464 
• Modeled Residue Count: 398 
• Deposited Residue Count: 420 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cytochrome P450	A	420	Streptomyces avermitilis	Mutation(s): 1  Gene Names: SAV14893_032670, SAV31267_054670
UniProt
Find proteins for A0A4D4LTT1 (Streptomyces avermitilis) Explore A0A4D4LTT1  Go to UniProtKB:  A0A4D4LTT1

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	B [auth A]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
PEG	C [auth A], E [auth A]	DI(HYDROXYETHYL)ETHER C4 H10 O3 MTHSVFCYNBDYFN-UHFFFAOYSA-N
EDO	D [auth A], F [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.97 Å
• R-Value Free:  0.234 (Depositor), 0.242 (DCC) 
• R-Value Work:  0.178 (Depositor), 0.189 (DCC) 
• R-Value Observed: 0.181 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 56.505	α = 90
b = 79.353	β = 90
c = 116.995	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-3000	data scaling
HKL-3000	data reduction
MOLREP	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-09-24 
Deposition Author(s): Xu, L.H.

---

Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	--

Revision History  

• Version 1.0: 2025-09-24
  Type: Initial release