Regulation of newly evolved enzymes. I. Selection of a novel lactase regulated by lactose in Escherichia coli.
نویسندگان
چکیده
Thirty-four lactose-utilizing strains of E. coli were selected from a lac Z deletion strain. In 31 of these, the synthesis of the newly evolved lactase is regulated by lactose. The lactase activity in all the strains is indistinguishable from the ebg(+) activity identified by Campbell, Lengyel and Langridge (1973).
منابع مشابه
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ورودعنوان ژورنال:
- Genetics
دوره 76 3 شماره
صفحات -
تاریخ انتشار 1974