半乳糖激酶（galK）和半乳糖代谢酶（galM）在嗜热链球菌半乳糖代谢中的作用。
Role of galK and galM in galactose metabolism by Streptococcus thermophilus.
作者信息
Vaillancourt Katy, Bédard Nathalie, Bart Christian, Tessier Mélanie, Robitaille Gilles, Turgeon Nathalie, Frenette Michel, Moineau Sylvain, Vadeboncoeur Christian
机构信息
Groupe de Recherche en Ecologie Buccale, Faculté de Médecine Dentaire, Université Laval, Quebec City, Quebec, Canada G1K 7P4.
出版信息
Appl Environ Microbiol. 2008 Feb;74(4):1264-7. doi: 10.1128/AEM.01585-07. Epub 2007 Dec 7.
Abstract
Streptococcus thermophilus is unable to metabolize the galactose moiety of lactose. In this paper, we show that a transformant of S. thermophilus SMQ-301 expressing Streptococcus salivarius galK and galM was able to grow on galactose and expelled at least twofold less galactose into the medium during growth on lactose.
摘要
嗜热链球菌无法代谢乳糖的半乳糖部分。在本文中，我们表明，表达唾液链球菌galK和galM的嗜热链球菌SMQ-301转化体能够在半乳糖上生长，并且在乳糖生长过程中向培养基中排出的半乳糖至少减少了两倍。
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