PDB Entry (1atk)
PDB ID: 1atk Resolution: 2.2 Å Exp. Method: X-RAY DIFFRACTION
PMID: 9033588 DOI: 10.1038/nsb0297-109
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:   E64
Canonical SMILES:   CC(C)C[C@H](NC(=O)[C@@H]1O[C@H]1C(O)=O)C(=O)NCCCCNC(N)=N
Standard InChI:   InChI=1S/C15H27N5O5/c1-8(2)7-9(20-13(22)10-11(25-10)14(23)24)12(21)18-5-3-4-6-19-15(16)17/h8-11H,3-7H2,1-2H3,(H,18,21)(H,20,22)(H,23,24)(H4,16,17,19)/t9-,10+,11+/m0/s1
HET Code:   E64 PubChem:   439487
DrugBank:   - ChEMBL:   CHEMBL1458713
Molecular Formula:   C15H27N5O5 Mol. Weight:   357.20123 logP:   -1.25123
HBD:   6 HBA:   5
#Rotatable Bonds:   11 TPSA:   169.93
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Epoxide Opening CYS 25 A 19.1 14.76 Epoxide
Binding Affinity
-