Structure analysis

THE STRUCTURE OF HORSE METHAEMOGLOBIN AT 2.0 ANGSTROMS RESOLUTION

X-ray diffraction
2Å resolution
Source organism: Equus caballus
Assembly composition:
hetero tetramer (preferred)
Entry contents: 2 distinct polypeptide molecules

Assemblies

Assembly 1 (preferred)
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Multimeric state: hetero tetramer
Accessible surface area: 23351.84 Å2
Buried surface area: 11376.7 Å2
Dissociation area: 3,382.61 Å2
Dissociation energy (ΔGdiss): 1.45 kcal/mol
Dissociation entropy (TΔSdiss): 36.77 kcal/mol
Symmetry number: 2
PDBe Complex ID: PDB-CPX-135379

Macromolecules

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
Pfam: Globin
InterPro:
CATH: Globins
SCOP: Globins

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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
Pfam: Globin
InterPro:
CATH: Globins
SCOP: Globins

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