› 2mhb

X-ray diffraction
2Å resolution

THE STRUCTURE OF HORSE METHAEMOGLOBIN AT 2.0 ANGSTROMS RESOLUTION

Released:
DOI: 10.2210/pdb2mhb/pdb
PDB entry 2mhb coloured by chain, front view.
PDB entry 2mhb coloured by chain, side view.
PDB entry 2mhb coloured by chain, top view.
Source organism: Equus caballus
Primary publication:
The structure of horse methaemoglobin at 2-0 A resolution.
Ladner RC, Heidner EJ, Perutz MF
J Mol Biol 114 385-414 (1977)
PMID: 561852

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-135379 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Hemoglobin subunit alpha Chain: A
Molecule details ›
Chain: A
Length: 141 amino acids
Theoretical weight: 15.14 KDa
Source organism: Equus caballus
Expression system: Not provided
UniProt:
  • Canonical: P01958 (Residues: 2-142; Coverage: 99%)
Gene name: HBA
Sequence domains: Globin
Structure domains: Globins
Hemoglobin subunit beta Chain: B
Molecule details ›
Chain: B
Length: 146 amino acids
Theoretical weight: 16.03 KDa
Source organism: Equus caballus
Expression system: Not provided
UniProt:
  • Canonical: P02062 (Residues: 1-146; Coverage: 100%)
Gene name: HBB
Sequence domains: Globin
Structure domains: Globins

Ligands and Environments

1 bound ligand:
Ligand HEM 2 x HEM
No modified residues

Experiments and Validation Details

Entry percentile scores
Spacegroup: C2
Unit cell:
a: 108.24Å b: 63.13Å c: 54.54Å
α: 90° β: 110.85° γ: 90°
R-values:
R R work R free
0.23 0.23 not available
Expression system: Not provided

Quick links

Citations

11 review citations

Iron release, oxidative stress and erythrocyte ageing.
Comporti et al. (2002)
10 more

7 mentions without citation

Protein folds and protein folding.
Schaeffer et al. (2011)
6 more