1MBN

The stereochemistry of the protein myoglobin

• PDB DOI: https://doi.org/10.2210/pdb1MBN/pdb

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


• Deposited: 1973-04-05 Released: 1976-05-19 
• Deposition Author(s): Watson, H.C., Kendrew, J.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å

Literature

The Stereochemistry of the Protein Myoglobin

Watson, H.C.

(1969) Prog Stereochem 4: 299

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 17.87 kDa 
• Atom Count: 1,260 
• 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	C [auth A]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
OH	B [auth A]	HYDROXIDE ION H O XLYOFNOQVPJJNP-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 64.5	α = 90
b = 30.9	β = 106
c = 34.7	γ = 90

Structure Validation

Entry History 

Deposition Data

• Released Date: 1976-05-19 
Deposition Author(s): Watson, H.C., Kendrew, J.C.

Revision History  

• Version 1.0: 1976-05-19
  Type: Initial release
  
• Version 1.1: 2008-03-03
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2017-11-29
  Changes: Derived calculations, Other
• Version 1.4: 2024-02-14
  Changes: Data collection, Database references, Derived calculations