耐塩性乳酸菌Tetracoccus soyaeにおけるL-Threonine DehydrogenaseおよびAminoacetone Synthetaseの関与するL-スレオニンの代謝 : 好塩性菌に関する研究第8報 : 耐塩性乳酸菌Tetracoccus soyaeによるアミノ酸の代謝(その3)

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Studies on the oxidative dissimilation of L-threonine in Tetracoccus soyae UENO et OMATA, a halotolerant lactic aicd bacterium, have been carried out.The microorganism aerobically dissimilated L-threonine and produced aminoacetone, keto acid, glycine, serine, and ammonia. Using a tracer technique, it was confirmed that aminoacetone was formed by the action of NAD-dependent L-threonine dehydrogenase. It was also confirmed that the conversion of L-threonine to glycine proceeded by the cooperative action of L-threonine dehydrogenase and aminoacetone synthetase.Some characteristics of L-threonine dehydrogenase were also investigated. L-Threonine dehydrogenase of this microoranism required K^+ ions for its activation, and its optimum concentration was observed to be 0.2 M.
社団法人日本生物工学会の論文
1974-03-25