| Literature DB >> 24900843 |
Kristaps Jaudzems1, Kaspars Tars2, Gundars Maurops1, Natalija Ivdra1, Martins Otikovs1, Janis Leitans2, Iveta Kanepe-Lapsa1, Ilona Domraceva1, Ilze Mutule1, Peteris Trapencieris1, Michael J Blackman3, Aigars Jirgensons1.
Abstract
Antimalarial hit 1 SR (TCMDC-134674) identified in a GlaxoSmithKline cell based screening campaign was evaluated for inhibitory activity against the digestive vacuole plasmepsins (Plm I, II, and IV). It was found to be a potent Plm IV inhibitor with no selectivity over Cathepsin D. A cocrystal structure of 1 SR bound to Plm II was solved, providing structural insight for the design of more potent and selective analogues. Structure-guided optimization led to the identification of structurally simplified analogues 17 and 18 as low nanomolar inhibitors of both, plasmepsin Plm IV activity and P. falciparum growth in erythrocytes.Entities:
Keywords: Cathepsin D; Malaria; Plasmodium falciparum; hydroxyethylamine; inhibition; plasmepsins; structure-guided optimization
Year: 2014 PMID: 24900843 PMCID: PMC4027636 DOI: 10.1021/ml4004952
Source DB: PubMed Journal: ACS Med Chem Lett ISSN: 1948-5875 Impact factor: 4.345