› 7dgn

X-ray diffraction
2.35Å resolution

The Co-bound dimeric structure of K79H/G80A/H81A myoglobin

Released:
DOI: 10.2210/pdb7dgn/pdb
PDB entry 7dgn coloured by chain, front view.
PDB entry 7dgn coloured by chain, side view.
PDB entry 7dgn coloured by chain, top view.
Source organism: Equus caballus
Primary publication:
Rational design of metal-binding sites in domain-swapped myoglobin dimers.
Nagao S, Idomoto A, Shibata N, Higuchi Y, Hirota S
J Inorg Biochem 217 111374 (2021)
PMID: 33578251

Function and Biology Details

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

Structure analysis Details

Assembly composition:
homo dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-159280 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Myoglobin Chains: A, B
Molecule details ›
Chains: A, B
Length: 153 amino acids
Theoretical weight: 16.94 KDa
Source organism: Equus caballus
Expression system: Escherichia coli
UniProt:
  • Canonical: P68082 (Residues: 2-154; Coverage: 99%)
Gene name: MB
Sequence domains: Globin

Ligands and Environments

3 bound ligands:
Ligand HEM 2 x HEM
Ligand O 2 x O
Ligand CO 2 x CO
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SPRING-8 BEAMLINE BL38B1
Spacegroup: P212121
Unit cell:
a: 56.966Å b: 63.463Å c: 83.003Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.205 0.202 0.269
Expression system: Escherichia coli

Quick links

Citations

1 citations in other articles

AlphaFill: enriching AlphaFold models with ligands and cofactors.
Hekkelman et al. (2023)

1 mention without citation

Water stabilizes an alternate turn conformation in horse heart myoglobin.
Bronstein et al. (2023)