Is e seòrsa de polyamine a th 'ann an spermidine. Tha polyamines nam biomolecules beaga, geir, polycationic (-NH3+). Tha ceithir prìomh polyamines ann am mamalan: spermine, spermidine, putrescine agus cadaverine. Buinidh sperm do na tetramines, buinidh spermidine dha na triamines, putresc ...
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