[New 5'-sulfurated nucleosides as inhibitors of the biosynthesis of polyamines]. 1980

G Cacciapuoti, and M Porcelli, and F Della Ragione, and G Pontoni, and M Cartenì-Farina

The inhibitory effect of the deaminated analogs of S-adenosyl(5')-3-methylthiopropylamine on spermidine synthase (EC 2.5.1.16.) from E. coli, AdoMet decarboxylase (EC 4.1.1.50.) from human placenta and E. coli and AdoMet lyase (EC 3.3.1.-) from rat liver have been reported. 5'-isobutylthioadenosine, a new powerful antiproliferative drug has been assayed as substrate of MTA phosphorylase (EC 2.4.2.1). The apparent Km is 1,8x10(-5) M. The inhibitory effect of 5'-isobutylthiadenosine on AdoMet lyase and spermidine synthase was also demonstrated.

UI MeSH Term Description Entries
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008190 Lyases A class of enzymes that catalyze the cleavage of C-C, C-O, and C-N, and other bonds by other means than by hydrolysis or oxidation. (Enzyme Nomenclature, 1992) EC 4. Desmolase,Desmolases,Lyase
D009705 Nucleosides Purine or pyrimidine bases attached to a ribose or deoxyribose. (From King & Stansfield, A Dictionary of Genetics, 4th ed) Nucleoside,Nucleoside Analog,Nucleoside Analogs,Analog, Nucleoside,Analogs, Nucleoside
D010920 Placenta A highly vascularized mammalian fetal-maternal organ and major site of transport of oxygen, nutrients, and fetal waste products. It includes a fetal portion (CHORIONIC VILLI) derived from TROPHOBLASTS and a maternal portion (DECIDUA) derived from the uterine ENDOMETRIUM. The placenta produces an array of steroid, protein and peptide hormones (PLACENTAL HORMONES). Placentoma, Normal,Placentome,Placentas,Placentomes
D011073 Polyamines Amine compounds that consist of carbon chains or rings containing two or more primary amino groups. Polyamine
D011436 Spermidine Synthase An enzyme that catalyzes the transfer of the propylamine moiety from 5'-deoxy-5'-S-(3-methylthiopropylamine)sulfonium adenosine to putrescine in the biosynthesis of spermidine. The enzyme has a molecular weight of approximately 73,000 kDa and is composed of two subunits of equal size. Aminopropyltransferase,Propylamine Transferase,Spermidine Synthetase,Putrescine Aminopropyltransferase,Aminopropyltransferase, Putrescine,Synthase, Spermidine,Synthetase, Spermidine,Transferase, Propylamine
D002262 Carboxy-Lyases Enzymes that catalyze the addition of a carboxyl group to a compound (carboxylases) or the removal of a carboxyl group from a compound (decarboxylases). EC 4.1.1. Carboxy-Lyase,Decarboxylase,Decarboxylases,Carboxy Lyase,Carboxy Lyases
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
D004926 Escherichia coli A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc. Alkalescens-Dispar Group,Bacillus coli,Bacterium coli,Bacterium coli commune,Diffusely Adherent Escherichia coli,E coli,EAggEC,Enteroaggregative Escherichia coli,Enterococcus coli,Diffusely Adherent E. coli,Enteroaggregative E. coli,Enteroinvasive E. coli,Enteroinvasive Escherichia coli
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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