大肠杆菌K-12 metA基因的调控区域。
Regulatory region of the metA gene of Escherichia coli K-12.
作者信息
Michaeli S, Mevarech M, Ron E Z
出版信息
J Bacteriol. 1984 Dec;160(3):1158-62. doi: 10.1128/jb.160.3.1158-1162.1984.
Abstract
Transcription of the metA gene of Escherichia coli K-12 is from a promoter which is under methionine control and is located next to a region which has an extensive sequence homology with the operator regions of the metBL and metF genes. However, in the metA gene there is a second transcription start point which is located 74 base pairs upstream and which is independent of the intracellular methionine concentration.
摘要
大肠杆菌K-12的metA基因转录自一个受甲硫氨酸调控的启动子，该启动子位于一个与metBL和metF基因的操纵区具有广泛序列同源性的区域附近。然而，在metA基因中还有第二个转录起始点，它位于上游74个碱基对处，且与细胞内甲硫氨酸浓度无关。
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