9EF0 | pdb_00009ef0

EM structure of cytochrome P450 reductase

• PDB DOI: https://doi.org/10.2210/pdb9EF0/pdb
• EM Map EMD-40857: EMDB EMDataResource

• Classification: OXIDOREDUCTASE
• Organism(s): Rattus norvegicus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-11-19 Released: 2024-12-04 
• Deposition Author(s): Lepesheva, G.I., Ren, Y.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.33 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Cryo-EM reveals an ensemble of cytochrome P450 reductase conformations in solution

Lepesheva, G.I., Ren, Y.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 78.3 kDa 
• Atom Count: 4,993 
• Modeled Residue Count: 613 
• Deposited Residue Count: 678 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
NADPH--cytochrome P450 reductase	A	678	Rattus norvegicus	Mutation(s): 0  Gene Names: Por EC: 1.6.2.4
UniProt
Find proteins for P00388 (Rattus norvegicus) Explore P00388  Go to UniProtKB:  P00388

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
FAD	C [auth A]	FLAVIN-ADENINE DINUCLEOTIDE C27 H33 N9 O15 P2 VWWQXMAJTJZDQX-UYBVJOGSSA-N
FMN	B [auth A]	FLAVIN MONONUCLEOTIDE C17 H21 N4 O9 P FVTCRASFADXXNN-SCRDCRAPSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.33 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21.1_5286:

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-12-04 
Deposition Author(s): Lepesheva, G.I., Ren, Y.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	GM151876

Revision History  

• Version 1.0: 2024-12-04
  Type: Initial release
  
• Version 1.1: 2025-12-17
  Changes: Database references