Structure of PDB 8qkb Chain B Binding Site BS01

Receptor Information
>8qkb Chain B (length=220) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
APRSVDWREKGYVTPVKNQGQCGSCWAFSATGALEGQMFRKTGRLISLSE
QNLVDCSGPQGNEGCNGGLMDYAFQYVQDNGGLDSEESYPYEATEESCKY
NPKYSVANDAGFVDIPKQEKALMKAVATVGPISVAIDAGHESFLFYKEGI
YFEPDCSSEDMDHGVLVVGYGFESTESDNNKYWLVKNSWGEEWGMGGYVK
MAKDRRNHCGIASAASYPTV
Ligand information
Ligand IDD1R
InChIInChI=1S/C32H40N4O4S/c1-35-20-22-36(23-21-35)32(38)34-30(25-27-13-7-3-8-14-27)31(37)33-28(18-17-26-11-5-2-6-12-26)19-24-41(39,40)29-15-9-4-10-16-29/h2-16,28,30H,17-25H2,1H3,(H,33,37)(H,34,38)/t28-,30-/m0/s1
InChIKeyVZSXPUDQSLKVIR-JDXGNMNLSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0CN1CCN(CC1)C(=O)NC(Cc2ccccc2)C(=O)NC(CCc3ccccc3)CCS(=O)(=O)c4ccccc4
OpenEye OEToolkits 1.5.0CN1CCN(CC1)C(=O)N[C@@H](Cc2ccccc2)C(=O)N[C@@H](CCc3ccccc3)CCS(=O)(=O)c4ccccc4
CACTVS 3.341CN1CCN(CC1)C(=O)N[C@@H](Cc2ccccc2)C(=O)N[C@@H](CCc3ccccc3)CC[S](=O)(=O)c4ccccc4
ACDLabs 10.04O=C(N1CCN(C)CC1)NC(C(=O)NC(CCS(=O)(=O)c2ccccc2)CCc3ccccc3)Cc4ccccc4
CACTVS 3.341CN1CCN(CC1)C(=O)N[CH](Cc2ccccc2)C(=O)N[CH](CCc3ccccc3)CC[S](=O)(=O)c4ccccc4
FormulaC32 H40 N4 O4 S
NameNALPHA-[(4-METHYLPIPERAZIN-1-YL)CARBONYL]-N-{(1S)-3-PHENYL-1-[2-(PHENYLSULFONYL)ETHYL]PROPYL}-L-PHENYLALANINAMIDE
ChEMBL
DrugBank
ZINCZINC000013844995
PDB chain8qkb Chain B Residue 301 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB8qkb Crystal structure of human cathepsin L in complex with the vinyl sulfone inhibitor K777
Resolution1.6 Å
Binding residue
(original residue number in PDB)		Q19 G23 C25 N66 G67 G68 L69 A135 A138 D162 H163 W189
Binding residue
(residue number reindexed from 1)		Q19 G23 C25 N66 G67 G68 L69 A135 A138 D162 H163 W189
Annotation score1
Enzymatic activity
Enzyme Commision number 3.4.22.15: cathepsin L.
Gene Ontology
Molecular Function
GO:0008234 cysteine-type peptidase activity
Biological Process
GO:0006508 proteolysis

View graph for
Molecular Function
View graph for
Biological Process
External links
PDB RCSB:8qkb, PDBe:8qkb, PDBj:8qkb
PDBsum8qkb
PubMed38630165
UniProtP07711|CATL1_HUMAN Procathepsin L (Gene Name=CTSL)

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