大腸菌におけるLヴァリンによるリダクトイソメラーゼ生成の抑制〔英文〕

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概要

• 論文の詳細を見る

• The reductoisomerase in the biosynthetic pathway leading to isoleucine and valine is represed by L-valine, but not by isoleucine in Escherichia coli K-12. The mode of repression in a methionine-requiring mutant is different from that of wild type. The reductoisomerase of the methionine-requiring mutant and its derivatives, the isoleucine-valine requiring mutants, is repressed by valine to a low level, if the molar ratio of L-isoleucine to L-valine in the medium is below 1. On the other hand, the synthesis of the reductoisomerase in the wild-type strain is gradually decreased by increasing amounts of L-valine in media containing a constant amount of L-isoleucine. The repression by L-valine is specific for the reductoisomerase and independent of the induction of β-galactosidase.

• 日本遺伝学会の論文

著者

• KIRITANI KAZUYOSHI

  Institute of Applied Microbiology, University of Tokyo

• IKEDA YONOSUKE

  Institute of Applied Microbiology, University of Tokyo

• 桐谷 和文

  Institute of Applied Microbiology, University of Tokyo

関連論文

• 大腸菌におけるLヴァリンによるリダクトイソメラーゼ生成の抑制〔英文〕

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