4MBN

REFINEMENT OF MYOGLOBIN AND CYTOCHROME C

• PDB DOI: https://doi.org/10.2210/pdb4MBN/pdb
• Entry: 4MBN supersedes: 2MBN

• Classification: OXYGEN STORAGE
• Organism(s): Physeter catodon
• Mutation(s): No 


• Deposited: 1988-01-14 Released: 1989-07-12 
• Deposition Author(s): Takano, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Work: 0.172 

Literature

Refinement of Myoglobin and Cytochrome C

Takano, T.

(1984) Methods And Applications In Crystallographic Computing : 262

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 18.04 kDa 
• Atom Count: 1,383 
• Modelled Residue Count: 153 
• Deposited Residue Count: 153 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
MYOGLOBIN	A	153	Physeter catodon	Mutation(s): 0  EC: 1.11.1 (UniProt), 1.7 (UniProt)
UniProt
Find proteins for P02185 (Physeter macrocephalus) Explore P02185  Go to UniProtKB:  P02185

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	D [auth A]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
SO4	B [auth A], C [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Work: 0.172 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.56	α = 90
b = 30.97	β = 105.86
c = 34.86	γ = 90

Software Package:

Software Name	Purpose
EREF	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1989-07-12 
Deposition Author(s): Takano, T.
• This entry supersedes: 2MBN

Revision History  

• Version 1.0: 1989-07-12
  Type: Initial release
  
• Version 1.1: 2008-03-25
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Advisory, Version format compliance
• Version 2.0: 2023-02-08
  Type: Remediation
  Changes: Atomic model, Data collection, Database references, Derived calculations, Other
• Version 2.1: 2023-03-15
  Changes: Advisory
• Version 2.2: 2024-05-22
  Changes: Data collection