Structure of PDB 3s3r Chain B Binding Site BS01

Receptor Information
>3s3r Chain B (length=249) Species: 6183 (Schistosoma mansoni) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
VEIPSSFDSRKKWPRCKSIATIRDQSRCGSCWAFGAVEAMSDRSCIQSVE
LSAVDLLSCCESCGLGCEGGILGPAWDYWVKEGIVTGSSKENHAGCEPYP
FPKCEHHTKGKYPPCGSKIYKTPRCKQTCQKKYKTPYTQDKHRGKSSYNV
KNDEKAIQKEIMKYGPVEAGFTVYEDFLNYKSGIYKHITGETLGGHAIRI
IGWGVENKAPYWLIANSWNEDWGENGYFRIVRGRDECSIESEVTAGRIN
Ligand information
Ligand ID0IW
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 1.7.2CN1CCN(CC1)C(=O)NC(Cc2ccccc2)C(=O)NC(CCc3ccccc3)CCS(=O)(=O)c4ccccc4
CACTVS 3.370CN1CCN(CC1)C(=O)N[C@@H](Cc2ccccc2)C(=O)N[C@@H](CCc3ccccc3)CC[S](=O)(=O)c4ccccc4
ACDLabs 12.01O=C(N1CCN(C)CC1)NC(C(=O)NC(CCc2ccccc2)CCS(=O)(=O)c3ccccc3)Cc4ccccc4
CACTVS 3.370CN1CCN(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-[(3S)-1-phenyl-5-(phenylsulfonyl)pentan-3-yl]-L-phenylalaninamide;
APC-3316, bound form;
4-Methylpiperazine-1-carboxylic acid [1-[(3-benzenesulfonyl-1-phenethylallyl)carbamoyl]-2-phenylethyl]amide, bound form
ChEMBL
DrugBank
ZINCZINC000013844995
PDB chain3s3r Chain B Residue 324 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB3s3r Structural Basis for Inhibition of Cathepsin B Drug Target from the Human Blood Fluke, Schistosoma mansoni.
Resolution2.64 Å
Binding residue
(original residue number in PDB)
Q94 C100 W101 L139 E142 G143 G144 G269 H270 W292 E316
Binding residue
(residue number reindexed from 1)
Q25 C31 W32 L65 E68 G69 G70 G195 H196 W218 E242
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) Q94 C100 H270 N290
Catalytic site (residue number reindexed from 1) Q25 C31 H196 N216
Enzyme Commision number 3.4.22.1: cathepsin B.
Gene Ontology
Molecular Function
GO:0008234 cysteine-type peptidase activity
Biological Process
GO:0006508 proteolysis

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Molecular Function

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Biological Process
External links
PDB RCSB:3s3r, PDBe:3s3r, PDBj:3s3r
PDBsum3s3r
PubMed21832058
UniProtQ8MNY2

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