Abstract:
:The prokaryotic ATP-dependent ClpP protease, localized in the relict plastid of malaria parasite, represents a potential drug target. In the present study, we utilized in silico structure-based screening and medicinal chemistry approaches to identify a novel pyrimidine series of compounds inhibiting P. falciparum ClpP protease activity and evaluated their antiparasitic activities. Structure-activity relationship indicated that morpholine moiety at C2, an aromatic substitution at N3 and a 4-oxo moiety on the pyrimidine are important for potent inhibition of ClpP enzyme along with antiparasiticidal activity. Compound 33 exhibited potent antiparasitic activity (EC₅₀ 9.0±0.2μM), a 9-fold improvement over the antiparasitic activity of the hit molecule 6. Treatment of blood stage P. falciparum cultures with compound 33 caused morphological and developmental abnormalities in the parasites; further, compound 33 treatment hindered apicoplast development indicating the targeting of apicoplast.
journal_name
Bioorg Med Chemjournal_title
Bioorganic & medicinal chemistryauthors
Mundra S,Thakur V,Bello AM,Rathore S,Asad M,Wei L,Yang J,Chakka SK,Mahesh R,Malhotra P,Mohmmed A,Kotra LPdoi
10.1016/j.bmc.2017.08.049subject
Has Abstractpub_date
2017-10-15 00:00:00pages
5662-5677issue
20eissn
0968-0896issn
1464-3391pii
S0968-0896(17)31340-8journal_volume
25pub_type
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