PDB Entry (1sp4)
PDB ID: 1sp4 Resolution: 2.2 Å Exp. Method: X-RAY DIFFRACTION
PMID: 15084146 DOI: 10.1042/BJ20040237
Protein
Protein Name: Cathepsin B
Uniprot ID/ACC: P07688 (CATB_BOVIN) Organism: Bos taurus (Bovine)
Gene Symbol: CTSB Gene ID: 281105
Protein Class: HYDROLASE
Ligand
Ligand Name:   NS-134
Canonical SMILES:   COC(=O)CNC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@H]1O[C@@H]1C(=O)N[C@@H](CC(C)C)C(=O)N1CCC[C@H]1C(O)=O
Standard InChI:   InChI=1S/C26H41N5O10/c1-13(2)9-15(22(34)28-11-18(32)27-12-19(33)40-5)29-23(35)20-21(41-20)24(36)30-16(10-14(3)4)25(37)31-8-6-7-17(31)26(38)39/h13-17,20-21H,6-12H2,1-5H3,(H,27,32)(H,28,34)(H,29,35)(H,30,36)(H,38,39)/t15-,16-,17-,20-,21-/m0/s1
HET Code:   EP2 PubChem:   10257704
DrugBank:   - ChEMBL:   CHEMBL1232542
Molecular Formula:   C26H41N5O10 Mol. Weight:   583.28534 logP:   -1.7034
HBD:   5 HBA:   9
#Rotatable Bonds:   15 TPSA:   212.84
Covalent Mechanism
Reaction Name Residue Chain ID SASA pKa Warhead Name Warhead Structure
Epoxide Opening CYS 29 A 18.36 13.97 Epoxide
Binding Affinity
-