ebg操纵子至少由两个基因组成。
The ebg operon consists of at least two genes.
作者信息
Hall B G, Zuzel T
出版信息
J Bacteriol. 1980 Dec;144(3):1208-11. doi: 10.1128/jb.144.3.1208-1211.1980.
Abstract
The ebg operon of Escherichia coli includes a second gene designated ebgB. The ebgB gene product is a 79,000-molecular-weight protein and is expressed coordinately with the ebgA gene product, ebg beta-galactosidase. Insertion of the transposable elements Tn5 and Tn9 into ebgA eliminates the expression of ebgB, suggesting that ebgB is distal to ebgA. Ultraviolet light mapping confirms that gene order. The function of the ebgB gene product is unknown.
摘要
大肠杆菌的ebg操纵子包含另一个名为ebgB的基因。ebgB基因产物是一种分子量为79,000的蛋白质，与ebgA基因产物ebgβ-半乳糖苷酶协同表达。将转座元件Tn5和Tn9插入ebgA会消除ebgB的表达，这表明ebgB在ebgA的下游。紫外线图谱分析证实了该基因顺序。ebgB基因产物的功能尚不清楚。
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