| 释义 |
spermidine Biochem.|ˈspɜːmɪdiːn|
[f. spermin + -idine.]
A colourless liquid triamine, H2N(CH2)3NH(CH2)4NH2, which is found very widely in living tissues, in company with spermine, and has a number of metabolic functions.
1927H. W. Dudley et al. in Biochem. Jrnl. XXI. 97 This base has been given the name spermidine since it not only occurs in association with spermine but also has been found to be structurally related to the latter substance. 1964A. White et al. Princ. Biochem. (ed. 3) xxvi. 538 Spermine and spermidine are present in significant amounts in ribosomes and appear to be essential to their structure and function. 1974Nature 17 May 250/1 The polyamines spermine spermidine and their precursor putrescine occur ubiquitously and in high concentrations in animals and plants. |