Spermidine minangka jinis poliamina. Poliamina minangka biomolekul cilik, lemak, polycationic (-NH3+). Ana papat poliamina utama ing mamalia: spermine, spermidine, putrescine lan cadaverine. Spermin kalebu tetramine, spermidine kalebu triamin, putresc ...
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