Abstract:
:As part of a continuing search for specific inhibitors of the enzymes involved in polyamine biosynthesis, we have designed and synthesized a multisubstrate adduct inhibitor, S-adenosyl-1,12-diamino-3-thio-9-azadodecane (AdoDATAD), in which critical portions of the nucleophilic aminopropyl acceptor are covalently linked to critical portions of the electrophilic aminopropyl donor to form a potent and specific inhibitor of spermine synthase. In addition, the corresponding desamino analogue which was designed to lack activity against spermine synthase on the basis of substrate structure-activity data has been synthesized as a control. Preliminary biological results demonstrate that AdoDATAD is a potent and specific inhibitor of mammalian spermine synthase in vitro, while being almost completely devoid of inhibitory activity toward the closely related aminopropyltransferase spermidine synthase. The desamino analogue, as predicted, showed no inhibitory activity against either enzyme. AdoDATAD represents an important addition to the arsenal of specific enzyme inhibitors available for blockade of the polyamine biosynthetic pathway at specific sites.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Woster PM,Black AY,Duff KJ,Coward JK,Pegg AEdoi
10.1021/jm00126a026subject
Has Abstractpub_date
1989-06-01 00:00:00pages
1300-7issue
6eissn
0022-2623issn
1520-4804journal_volume
32pub_type
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更新日期:2008-07-24 00:00:00
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journal_title:Journal of medicinal chemistry
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