Spermidine waa nooc ka mid ah polyamine. Polyamines waa yaryar, dufan, polycationic (-NH3+) biomolecules. Waxaa jira afar polyamines oo waaweyn oo ku jira naasleyda: shahwada, shahwada, putrescine iyo cadaverine. Xawada waxaa iska leh tetramines, shahwada waxaa iska leh triamines, putresc...
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