出典:Wiktionary
出典:『Wiktionary』 (2026/03/05 19:56 UTC 版)
spermine (countable and uncountable, plural spermines)
出典:Wikipedia
出典:『Wikipedia』 (2011/08/10 19:05 UTC 版)
Spermine is a polyamine involved in cellular metabolism found in all eukaryotic cells. Formed from spermidine, it is found in a wide variety of organisms and tissues and is an essential growth factor in some bacteria. It is found as a polycation at physiological pH. Spermine is associated with nucleic acids and is thought to stabilize helical structure, in particular, in viruses.