利用D-氨基酸对映体的系统的进化意义。

Evolutionary significance of the system utilizing D-amino acid enantiomers.

作者信息

Aono H, Yuasa S

出版信息

Biosystems. 1977 Sep;9(2-3):151-4. doi: 10.1016/0303-2647(77)90024-7.

Abstract

The evolutionary significance of the system utilizing D-amino acid enantiomers in living organisms is discussed, based on an experiment in which the mutant from Escherichia coli K--12 4627 grown on D-tryptophan was used. The mutant shows the ability of D-tryptophan is degraded to indol which can be utilized for the synthesis of L-tryptophan in the presence of serine.

摘要

基于一项实验，讨论了生物体内利用D-氨基酸对映体的系统的进化意义，该实验使用了在D-色氨酸上生长的大肠杆菌K-12 4627突变体。该突变体显示出将D-色氨酸降解为吲哚的能力，在丝氨酸存在的情况下，吲哚可用于合成L-色氨酸。