Adhya S, Miller W
Nature. 1979 Jun 7;279(5713):492-4. doi: 10.1038/279492a0.
The gal operon of Escherichia coli is controlled by two independent promotors--one is activated and the other inhibited by cyclic AMP and cyclic AMP receptor protein. The two promotors are modulated, however, by the same operator locus and receptor protein.
大肠杆菌的半乳糖操纵子由两个独立的启动子控制,一个被环腺苷酸(cAMP)和环腺苷酸受体蛋白激活,另一个则被其抑制。然而,这两个启动子受同一个操纵基因位点和受体蛋白的调控。