Spermidine se yon kalite polyamine. Polyamines se ti, gra, polycationic (-NH3 +) biomolecules. Gen kat poliamin prensipal nan mamifè: spermine, spermidin, putrescine ak cadaverine. Spermine fè pati tetramin yo, spermidine fè pati triamin yo, putresc...
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