球形红细菌中的趋化信号传导需要引诱剂的代谢。
Chemotactic signalling in Rhodobacter sphaeroides requires metabolism of attractants.
作者信息
Poole P S, Smith M J, Armitage J P
机构信息
Department of Microbiology, University of Reading, Whiteknights, United Kingdom.
出版信息
J Bacteriol. 1993 Jan;175(1):291-4. doi: 10.1128/jb.175.1.291-294.1993.
Abstract
Rhodobacter sphaeroides showed chemotaxis towards L-alanine but not towards the analog 2-aminoisobutyrate. 2-Aminoisobutyrate and alanine were shown to share a common transport system, but 2-aminoisobutyrate was not metabolized. Chemotaxis towards alanine was inhibited by structurally unrelated metabolites, suggesting cross-inhibition by common metabolic intermediates.
摘要
球形红细菌对L-丙氨酸表现出趋化性，但对类似物2-氨基异丁酸没有趋化性。已证明2-氨基异丁酸和丙氨酸共享一个共同的转运系统，但2-氨基异丁酸不能被代谢。对丙氨酸的趋化性受到结构不相关代谢物的抑制，这表明共同的代谢中间产物存在交叉抑制。
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