5Z7E

Horse Heart Myoglobin Mutant - H93M

• PDB DOI: https://doi.org/10.2210/pdb5Z7E/pdb

• Classification: OXYGEN STORAGE
• Organism(s): Equus caballus
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2018-01-28 Released: 2019-01-30 
• Deposition Author(s): Yi, J.
• Funding Organization(s): National Natural Science Foundation of China

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.197 
• R-Value Work: 0.157 
• R-Value Observed: 0.158 

Literature

Horse Heart Myoglobin Mutant - H93M

Yi, J.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 17.83 kDa 
• Atom Count: 1,341 
• 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	Equus caballus	Mutation(s): 1  Gene Names: MB
UniProt
Find proteins for P68082 (Equus caballus) Explore P68082  Go to UniProtKB:  P68082

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
HEM	E [auth A]	PROTOPORPHYRIN IX CONTAINING FE C34 H32 Fe N4 O4 KABFMIBPWCXCRK-RGGAHWMASA-L
SO4	C [auth A], D [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
NO2	B [auth A]	NITRITE ION N O2 IOVCWXUNBOPUCH-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.197 
• R-Value Work: 0.157 
• R-Value Observed: 0.158 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 35.082	α = 90
b = 28.725	β = 105.76
c = 63.271	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2019-01-30 
Deposition Author(s): Yi, J.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China	China	21271104
National Natural Science Foundation of China	China	21671103

Revision History  

• Version 1.0: 2019-01-30
  Type: Initial release
  
• Version 1.1: 2024-03-27
  Changes: Data collection, Database references, Derived calculations