PDB Entry (2r6n)
PDB ID: 2r6n Resolution: 1.95 Å Exp. Method: X-RAY DIFFRACTION
PMID: 17911019 DOI: 10.1016/j.bmcl.2007.09.047
Protein
Protein Name: Cathepsin K
Uniprot ID/ACC: P43235 (CATK_HUMAN) Organism: Homo sapiens (Human)
Gene Symbol: CTSK Gene ID: 1513
Protein Class: HYDROLASE
Ligand
Ligand Name:   7-cyclohexyl-6-{[4-(4-methylpiperazin-1-yl)phenyl]methyl}-7H-pyrrolo[2,3-d]pyrimidine-2-carbonitrile
Canonical SMILES:   CN1CCN(CC1)c1ccc(Cc2cc3cnc(nc3n2C2CCCCC2)C#N)cc1
Standard InChI:   InChI=1S/C25H30N6/c1-29-11-13-30(14-12-29)21-9-7-19(8-10-21)15-23-16-20-18-27-24(17-26)28-25(20)31(23)22-5-3-2-4-6-22/h7-10,16,18,22H,2-6,11-15H2,1H3
HET Code:   CKE PubChem:   17968234
DrugBank:   - ChEMBL:   CHEMBL398718
Molecular Formula:   C25H30N6 Mol. Weight:   414.2532 logP:   4.15078
HBD:   0 HBA:   6
#Rotatable Bonds:   4 TPSA:   60.98
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Nucleophilic Addition to a Triple Bond CYS 25 A 19.36 11.97 Nitrile
Binding Affinity
Database Name Value
PDBBind IC50 : 1 nM