Spermidine yog ib hom polyamine. Polyamines yog me me, fatty, polycationic (-NH3 +) biomolecules. Muaj plaub lub ntsiab polyamines hauv cov tsiaj txhu: spermine, spermidine, putrescine thiab cadaverine. Spermine belongs rau tetramines, spermidine belongs rau triamines, putresc ...
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