Pavlasová E, Stejskalová E, Sikyta B
Folia Microbiol (Praha). 1980;25(3):201-6. doi: 10.1007/BF02877338.
During a simultaneous induction of three enzymes which are subject to catabolite repression (beta-galactosidase, tryptophanase and amylomaltase, or beta-galactosidase, tryptophanase and D-serine deaminase) in a batch culture, the rates of synthesis of beta-galactosidase and tryptophanase decreases, while the rates of synthesis of amylomaltase and D-serine deaminase remain unaffected. The addition of cAMP brings about a considerable increase of the rate of synthesis of D-serine deaminase and a partial synthesis rate increase of beta-galactosidase whihle the synthesis rate of tryptophanase remains lowered and the synthesis rate of amylomaltase remains unaffected. In a continuous culture beta-galactosidase, tryptophanase and D-serine deaminase are synthesized simultaneously at a maximum rate without mutual influence. The addition of cAMP increases the rate of synthesis of all three enzymes.
在分批培养中同时诱导三种受分解代谢物阻遏的酶（β-半乳糖苷酶、色氨酸酶和淀粉麦芽糖酶，或β-半乳糖苷酶、色氨酸酶和D-丝氨酸脱氨酶）时，β-半乳糖苷酶和色氨酸酶的合成速率降低，而淀粉麦芽糖酶和D-丝氨酸脱氨酶的合成速率不受影响。添加环磷酸腺苷（cAMP）会使D-丝氨酸脱氨酶的合成速率大幅增加，β-半乳糖苷酶的合成速率部分增加，而色氨酸酶的合成速率仍然降低，淀粉麦芽糖酶的合成速率不受影响。在连续培养中，β-半乳糖苷酶、色氨酸酶和D-丝氨酸脱氨酶以最大速率同时合成，互不影响。添加cAMP会增加这三种酶的合成速率。
