金黄色葡萄球菌中高亲和力甘氨酸甜菜碱转运系统的鉴定
Identification of a high-affinity glycine betaine transport system in Staphylococcus aureus.
作者信息
Bae J H, Anderson S H, Miller K J
机构信息
Department of Food Science, Pennsylvania State University, University Park 16802.
出版信息
Appl Environ Microbiol. 1993 Aug;59(8):2734-6. doi: 10.1128/aem.59.8.2734-2736.1993.
Abstract
Staphylococcus aureus accumulates proline and glycine betaine when cells are grown at low water activity. In the present study, we have identified a high-affinity glycine betaine transport system in this bacterium. Optimal activity for this transport system was measured in the presence of high NaCl concentrations, but transport activity was not stimulated by high concentrations of other solutes.
摘要
当金黄色葡萄球菌在低水分活度条件下生长时，会积累脯氨酸和甘氨酸甜菜碱。在本研究中，我们在这种细菌中鉴定出了一种高亲和力的甘氨酸甜菜碱转运系统。该转运系统的最佳活性是在高NaCl浓度存在的情况下测定的，但高浓度的其他溶质不会刺激其转运活性。
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