麦芽糖转运与葡萄糖和半乳糖苷转运的相互作用。
Interaction of maltose transport with the transport of glucose and galactosides.
作者信息
McKinstry G, Koch A L
出版信息
J Bacteriol. 1972 Jan;109(1):455-8. doi: 10.1128/jb.109.1.455-458.1972.
Abstract
In cells of Escherichia coli possessing both maltose and galactoside permease, fluxes via one permease are independent of the substrate for the other permease. However, both fluxes are partially inhibited by glucose or alpha-methyl glucoside at low concentrations in cells grown on glucose. Neither maltose nor galactosides have an inhibitory effect on glucose permease function. These observations are consistent with the hypothesis that the number of glucose permease systems on the cell surface of such cells is much larger than the number for maltose or galactosides.
摘要
在同时拥有麦芽糖通透酶和半乳糖苷通透酶的大肠杆菌细胞中，通过一种通透酶的通量独立于另一种通透酶的底物。然而，在以葡萄糖为碳源生长的细胞中，低浓度的葡萄糖或α-甲基葡萄糖苷会部分抑制这两种通量。麦芽糖和半乳糖苷对葡萄糖通透酶的功能均无抑制作用。这些观察结果与以下假设一致：此类细胞表面的葡萄糖通透酶系统数量远多于麦芽糖或半乳糖苷的通透酶系统数量。
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引用本文的文献
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J Bacteriol. 1978 Mar;133(3):1358-67. doi: 10.1128/jb.133.3.1358-1367.1978.
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