Wayne P K, Rosen O M
Proc Natl Acad Sci U S A. 1974 Apr;71(4):1436-40. doi: 10.1073/pnas.71.4.1436.
Cyclic AMP concentrations were low for an adenylate cyclase-deficient mutant (cya(-)) and abnormally high for a catabolite receptor protein-deficient mutant (crp(-)). A fall in cellular cAMP concentration was always found when cells were subjected to transient repression. No consistent correlations were observed between catabolite repression and cellular cAMP levels.
对于腺苷酸环化酶缺陷型突变体(cya(-)),环磷酸腺苷(cAMP)浓度较低;而对于分解代谢物受体蛋白缺陷型突变体(crp(-)),cAMP浓度则异常高。当细胞受到短暂阻遏时,总是会发现细胞内cAMP浓度下降。在分解代谢物阻遏与细胞内cAMP水平之间未观察到一致的相关性。