Abstract
5′-Deoxy-5′-methylthioadenosine (MTA) is a naturally occurring sulfur nucleoside, ubiquitously distributed in nature endowed with antiproliferative activity (1–4). It derives from S-adenosylmethionine (AdoMet) metabolism through several metabolic pathways (1–4). In mammalian tissues the spermidine synthase and spermine synthase reactions represent the quantitatively most important routes for MTA formation (1–4). In spite of the occurrence of multiple biosynthetic pathways, the intracellular concentration of MTA is remarkably low when compared with that of spermidine, spermine and AdoMet (5–8). The thioether indeed does not accumulate intracellular ly because of its rapid cleavage by MTA phosphorylase into adenine and 5-methylthio-ribose-1-phosphate (9).
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© 1988 Plenum Press, New York
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Porcelli, M., Cacciapuoti, G., Cimino, G., Gavagnin, M., Sodano, G., Zappia, V. (1988). Characterization and Biogenesis of 5′-Methylthioxylofuranosyl Adenine, a New Natural Analog of 5′-Methylthioadenosine. In: Zappia, V., Pegg, A.E. (eds) Progress in Polyamine Research. Advances in Experimental Medicine and Biology, vol 250. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-5637-0_20
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DOI: https://doi.org/10.1007/978-1-4684-5637-0_20
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