› 1ycb

X-ray diffraction
2.1Å resolution

DISTAL POCKET POLARITY IN LIGAND BINDING TO MYOGLOBIN: DEOXY AND CARBONMONOXY FORMS OF A THREONINE68 (E11) MUTANT INVESTIGATED BY X-RAY CRYSTALLOGRAPHY AND INFRARED SPECTROSCOPY

Released:
DOI: 10.2210/pdb1ycb/pdb
PDB entry 1ycb coloured by chain, front view.
PDB entry 1ycb coloured by chain, side view.
PDB entry 1ycb coloured by chain, top view.
Source organism: Sus scrofa
Primary publication:
Distal pocket polarity in ligand binding to myoglobin: deoxy and carbonmonoxy forms of a threonine68(E11) mutant investigated by X-ray crystallography and infrared spectroscopy.
Cameron AD, Smerdon SJ, Wilkinson AJ, Habash J, Helliwell JR, Li T, Olson JS
Biochemistry 32 13061-70 (1993)
PMID: 8241160

Function and Biology Details

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-525935 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Myoglobin Chains: A, B
Molecule details ›
Chains: A, B
Length: 153 amino acids
Theoretical weight: 16.99 KDa
Source organism: Sus scrofa
Expression system: Not provided
UniProt:
  • Canonical: P02189 (Residues: 2-154; Coverage: 99%)
Gene name: MB
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: P21
Unit cell:
a: 124.6Å b: 42.5Å c: 92Å
α: 90° β: 92° γ: 90°
R-values:
R R work R free
0.198 not available not available
Expression system: Not provided

Quick links

Citations

2 review citations

Nonvertebrate hemoglobins: structural bases for reactivity.
Bolognesi et al. (1997)
1 more

2 mentions without citation

A heme pocket aromatic quadrupole modulates gas binding to cytochrome c'-β: Implications for NO sensors.
Adams et al. (2023)
1 more