2NNB

The Q403K mutant heme domain of flavocytochrome P450 BM3

• PDB DOI: https://doi.org/10.2210/pdb2NNB/pdb

• Classification: OXIDOREDUCTASE
• Organism(s): Priestia megaterium
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2006-10-24 Released: 2007-09-11 
• Deposition Author(s): Clark, J.P., Anderson, J.L.R., Miles, C.S., Mowat, C.G., Reid, G.A., Chapman, S.K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 0.233 
• R-Value Work: 0.182 
• R-Value Observed: 0.184 

Starting Model: experimental

Literature

The Q403K mutant heme domain of flavocytochrome P450 BM3

Clark, J.P., Anderson, J.L.R., Miles, C.S., Mowat, C.G., Reid, G.A., Chapman, S.K.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content

• Total Structure Weight: 108.83 kDa 
• Atom Count: 7,898 
• Modelled Residue Count: 882 
• Deposited Residue Count: 942 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Bifunctional P-450:NADPH-P450 reductase	A, B	471	Priestia megaterium	Mutation(s): 1  Gene Names: Cyp102a21 EC: 1.14.14.1 (PDB Primary Data), 1.6.2.4 (UniProt)
UniProt
Find proteins for P14779 (Priestia megaterium (strain ATCC 14581 / DSM 32 / CCUG 1817 / JCM 2506 / NBRC 15308 / NCIMB 9376 / NCTC 10342 / NRRL B-14308 / VKM B-512 / Ford 19)) Explore P14779  Go to UniProtKB:  P14779

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: 1.90 Å
• R-Value Free: 0.233 
• R-Value Work: 0.182 
• R-Value Observed: 0.184 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 58.753	α = 90
b = 152.792	β = 94.67
c = 61.504	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
ADSC	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-09-11 
Deposition Author(s): Clark, J.P., Anderson, J.L.R., Miles, C.S., Mowat, C.G., Reid, G.A., Chapman, S.K.

Revision History  

• Version 1.0: 2007-09-11
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2020-09-09
  Changes: Database references, Derived calculations, Structure summary
• Version 1.3: 2021-11-10
  Changes: Database references
• Version 1.4: 2023-10-25
  Changes: Data collection, Refinement description