› 1u9v

X-ray diffraction
2.2Å resolution

Crystal Structure of the Cysteine Protease Human Cathepsin K in Complex with the Covalent Inhibitor NVP-ABE854

Released:
DOI: 10.2210/pdb1u9v/pdb
PDB entry 1u9v coloured by chain, front view.
PDB entry 1u9v coloured by chain, side view.
PDB entry 1u9v coloured by chain, top view.
Source organism: Homo sapiens
Primary publication:
Novel purine nitrile derived inhibitors of the cysteine protease cathepsin K.
Altmann E, Cowan-Jacob SW, Missbach M
J Med Chem 47 5833-6 (2004)
PMID: 15537340

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:
Biological process:
Cellular component:
  • not assigned
Sequence domains:
Structure domain:

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-154996 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Cathepsin K Chain: A
Molecule details ›
Chain: A
Length: 217 amino acids
Theoretical weight: 23.74 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P43235 (Residues: 113-329; Coverage: 69%)
Gene names: CTSK, CTSO, CTSO2
Sequence domains: Papain family cysteine protease
Structure domains: Cysteine proteinases

Ligands and Environments

1 bound ligand:
Ligand IHE 1 x IHE
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ENRAF-NONIUS FR571
Spacegroup: P43212
Unit cell:
a: 63.2Å b: 63.2Å c: 113.8Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.173 0.17 0.231
Expression system: Spodoptera frugiperda

Quick links

Citations

5 review citations

Biochemical properties and regulation of cathepsin K activity.
Lecaille et al. (2008)
4 more

4 mentions without citation

Crystal structures of mite allergens Der f 1 and Der p 1 reveal differences in surface-exposed residues that may influence antibody binding.
Chruszcz et al. (2009)
3 more