6hgy

X-ray diffraction
2.2Å resolution

CRYSTAL STRUCTURE OF CATHEPSIN K WITH N-DESMETHYL THALASSOSPIRAMIDE C

Released:

Function and Biology Details

Reaction catalysed:
Broad proteolytic activity. With small-molecule substrates and inhibitors, the major determinant of specificity is P2, which is preferably Leu, Met > Phe, and not Arg.
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
monomeric (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Cathepsin K Chain: A
Molecule details ›
Chain: A
Length: 215 amino acids
Theoretical weight: 23.52 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P43235 (Residues: 115-329; Coverage: 69%)
Gene names: CTSK, CTSO, CTSO2
Sequence domains: Papain family cysteine protease

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X10SA
Spacegroup: P21
Unit cell:
a: 45.56Å b: 44.884Å c: 49.99Å
α: 90° β: 115.91° γ: 90°
R-values:
R R work R free
0.256 0.25 0.31
Expression system: Escherichia coli