短乳杆菌S层基因的体内表达
In vivo expression of the Lactobacillus brevis S-layer gene.
作者信息
Kahala M, Savijoki K, Palva A
机构信息
Agricultural Research Centre of Finland, Food Research Institute, Jokioinen.
出版信息
J Bacteriol. 1997 Jan;179(1):284-6. doi: 10.1128/jb.179.1.284-286.1997.
Abstract
Lactobacillus brevis possesses a surface layer protein (SlpA) with tightly regulated synthesis. The slpA gene is expressed by two adjacent promoters, P1 and P2. The level of P2-derived transcripts was approximately 10 times higher than that of P1-derived transcripts throughout the entire growth of L. brevis. The half-lives of slpA transcripts were shown to be exceptionally long (14 min).
摘要
短乳杆菌拥有一种合成受到严格调控的表层蛋白（SlpA）。slpA基因由两个相邻的启动子P1和P2表达。在短乳杆菌的整个生长过程中，源自P2的转录本水平比源自P1的转录本水平高约10倍。slpA转录本的半衰期显示异常长（14分钟）。
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