Ruggeri P, De Luca G, Crisafulli A, Macaione S, Di Giorgio R M, Ientile R
J Neurochem. 1982 Nov;39(5):1230-4. doi: 10.1111/j.1471-4159.1982.tb12559.x.
S-Adenosylmethionine decarboxylase from rat retina is similar to that isolated from other rat tissues with regard to kinetic parameters, pH optimum, putrescine requirement, and sensitivity to spermine. The enzymic activity increases during the first 7 days of postnatal life but decreases until the 20th day. After this period AdoMet decarboxylase activity increases, to reach the highest values at the 90th day. This behavior suggests that such enzymic activity is responsible for spermidine and spermine levels in rat retina and that a high content of retinal spermine might have a role in the photoreceptor outer segment renewal.
大鼠视网膜中的S-腺苷甲硫氨酸脱羧酶在动力学参数、最适pH值、对腐胺的需求以及对精胺的敏感性方面，与从大鼠其他组织中分离出的该酶相似。酶活性在出生后的前7天增加，但在第20天之前下降。在此之后，腺苷甲硫氨酸脱羧酶活性增加，在第90天达到最高值。这种行为表明，这种酶活性负责大鼠视网膜中精脒和精胺的水平，并且视网膜中高含量的精胺可能在光感受器外段更新中起作用。
