Abstract:
:Phosphopantetheine adenylyltransferase (PPAT) is an essential enzyme in Coenzyme A biosynthesis. Because bacterial PPAT and mammalian PPAT are dissimilar, this enzyme is an attractive antibacterial target. Based on the structure of the substrate, 4-phosphopantetheine, a dipeptide library was designed, synthesised and tested against Escherichia coli PPAT. The most potent inhibitor PTX040334 was co-crystallised with E. coli PPAT. With this structural information, a rational iterative medicinal chemistry program was initiated, aimed at increasing the number of inhibitor-enzyme interactions. A very potent and specific inhibitor, PTX042695, with an IC(50) of 6 nM against E.coli PPAT, but with no activity against porcine PPAT, was obtained.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Zhao L,Allanson NM,Thomson SP,Maclean JK,Barker JJ,Primrose WU,Tyler PD,Lewendon Adoi
10.1016/s0223-5234(03)00047-3subject
Has Abstractpub_date
2003-04-01 00:00:00pages
345-9issue
4eissn
0223-5234issn
1768-3254pii
S0223523403000473journal_volume
38pub_type
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