compound 11 [PMID: 29442501]   Click here for help

GtoPdb Ligand ID: 9819

Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: Compound 11 is a peptidyl-diphenyl phosphonate PR3 inhibitor, designed for enhanced inhibitory efficacy [1]. PR3 inhibitors have therapeutic potential for infectious and inflammatory diseases. Its peptide structure is represented as Bt-Val-Tyr-Asp-nValP(O-C6H4-4-Cl)2. Compound 11 is suitable for studies in primate models and human tissues, but is inactive vs. rodent PR3 [1].
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Ligand Activity Visualisation Charts

These are box plot that provide a unique visualisation, summarising all the activity data for a ligand taken from ChEMBL and GtoPdb across multiple targets and species. Click on a plot to see the median, interquartile range, low and high data points. A value of zero indicates that no data are available. A separate chart is created for each target, and where possible the algorithm tries to merge ChEMBL and GtoPdb targets by matching them on name and UniProt accession, for each available species. However, please note that inconsistency in naming of targets may lead to data for the same target being reported across multiple charts.

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2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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Physico-chemical Properties
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Physico-chemical Properties

Calculated molecular properties are available for small molecules and natural products (not peptides). Properties were generated using the CDK toolkit. All properties were selected to enable the prediction of the Lipinski Rule-of-Five profile or ‘druglikeness’ for each ligand. For more info on each category see the help pages.

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Hydrogen bond acceptors 14
Hydrogen bond donors 8
Rotatable bonds 28
Topological polar surface area 285.7
Molecular weight 976.28
XLogP 5.78
No. Lipinski's rules broken 4
SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

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Canonical SMILES CCCC(P(=O)(Oc1ccc(cc1)Cl)Oc1ccc(cc1)Cl)NC(=O)C(NC(=O)C(NC(=O)C(C(C)C)NC(=O)CCCCC1SCC2C1NC(=O)N2)Cc1ccc(cc1)O)CC(=O)O
Isomeric SMILES CCCC(P(=O)(Oc1ccc(cc1)Cl)Oc1ccc(cc1)Cl)NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@H](C(C)C)NC(=O)CCCCC1SC[C@H]2[C@@H]1NC(=O)N2)Cc1ccc(cc1)O)CC(=O)O
InChI InChI=1S/C44H55Cl2N6O11PS/c1-4-7-37(64(61,62-30-18-12-27(45)13-19-30)63-31-20-14-28(46)15-21-31)51-42(58)33(23-38(55)56)47-41(57)32(22-26-10-16-29(53)17-11-26)48-43(59)39(25(2)3)50-36(54)9-6-5-8-35-40-34(24-65-35)49-44(60)52-40/h10-21,25,32-35,37,39-40,53H,4-9,22-24H2,1-3H3,(H,47,57)(H,48,59)(H,50,54)(H,51,58)(H,55,56)(H2,49,52,60)/t32-,33-,34-,35?,37?,39-,40-/m0/s1
InChI Key QFLWZFQWSBQYPS-AWRAUJHKSA-N
Bioactivity Comments
Compound 11 is selective for PR3 compared to the closely related enzyme human neutrophil elastase [1].
Selectivity at enzymes
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
proteinase 3 Primary target of this compound Hs Inhibitor Inhibition 8.3 pKi - 1
⤷ pKi 8.3 (Ki 5.4x10-9 M) [1]
Description: Inhibition of human PR3 in vitro.