单词	spermine
释义	spermine /ˈspəːmiːn / noun [mass noun] Biochemistry A deliquescent compound which acts to stabilize various components of living cells and is widely distributed in living and decaying tissues. A polyamine; chemical formula: (H2N(CH2)3NH(CH2)2)2. Compare with spermidine. The binding model displayed in Fig.8 A has been observed from crystallographic studies on B-DNA dodecamers stabilized with spermine.... Because of their positive charges, putrescine, spermidine, and spermine show a high affinity with the acidic constituents of the cell (RNA, DNA, ATP, acidic proteins, phospholipids, etc.). The flexible polyamine spermine displays a high presence in the minor groove but does not form long-lived and structurally defined complexes.
随便看	non-thematic non-theorem non-theoretical non-toxic nontraditional non-transferable non-transmission non-transparency non-transparent non-transposing non-treaty non-trivial non-trivially nontronite non-tropical sprue non-truth non-typical non-U non-uniform non-uniformity non-uniformly non-union non-unionise non-unionised non-unionism

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