WLL-vs   Click here for help

GtoPdb Ligand ID: 11321

Antimalarial Ligand
Compound class: Synthetic organic
Comment: The peptide vinyl sulfone, WLL-vs, is a highly selective covalent inhibitor of the P. falciparum proteasome [1].

The Malaria tab on this ligand page provides additional curator comments of relevance to the Guide to MALARIA PHARMACOLOGY.
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2D Structure
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Physico-chemical Properties
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Hydrogen bond acceptors 10
Hydrogen bond donors 4
Rotatable bonds 18
Topological polar surface area 158.08
Molecular weight 617.32
XLogP 3.4
No. Lipinski's rules broken 1
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Canonical SMILES CC(C[C@@H](C(=O)N[C@@H](CC(C)C)/C=C/S(=O)(=O)C)NC(=O)[C@H](Cc1c[nH]c2c1cccc2)NC(=O)CN1CCOCC1)C
Isomeric SMILES CC(C[C@@H](C(=O)N[C@@H](CC(C)C)/C=C/S(=O)(=O)C)NC(=O)[C@H](Cc1c[nH]c2c1cccc2)NC(=O)CN1CCOCC1)C
InChI InChI=1S/C31H47N5O6S/c1-21(2)16-24(10-15-43(5,40)41)33-30(38)27(17-22(3)4)35-31(39)28(34-29(37)20-36-11-13-42-14-12-36)18-23-19-32-26-9-7-6-8-25(23)26/h6-10,15,19,21-22,24,27-28,32H,11-14,16-18,20H2,1-5H3,(H,33,38)(H,34,37)(H,35,39)/b15-10+/t24-,27+,28+/m1/s1
Guide to Malaria Pharmacology Comments
Second-generation vinyl sulfone inhibitors, with improved selectivity, have been identified following medicinal chemistry efforts to optimize WLL-vs [3]. However, concerns about long-term host toxicity remain due to micromolar potency against the human proteosome, an issue that must be addressed to advance this class of inhibitor.

Potential Target/Mechanism Of Action: WLL-vs is an inhibitor of the β2 and β5 subunits of the of P. falciparum proteasome.