X-ray diffraction
2.25Å resolution

Crystal structure of proton pump MAR rhodopsin pressurized with krypton

Entry authors: Melnikov I, Rulev M, Astashkin R, Kovalev K, Carpentier P, Gordeliy V, Popov A

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Bacteriorhodopsin Chain: A
Molecule details ›
Chain: A
Length: 220 amino acids
Theoretical weight: 24.31 KDa
Source organism: Candidatus Actinomarina minuta
Expression system: Escherichia coli
  • Canonical: S5DM51 (Residues: 1-220; Coverage: 100%)
Sequence domains: Bacteriorhodopsin-like protein

Ligands and Environments

1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID29
Spacegroup: P2
Unit cell:
a: 50.897Å b: 40.381Å c: 60.619Å
α: 90° β: 101.36° γ: 90°
R R work R free
0.181 0.178 0.245
Expression system: Escherichia coli