南极嗜冷菌不动冷杆菌A8分泌的β-内酰胺酶。
The beta-lactamase secreted by the antarctic psychrophile Psychrobacter immobilis A8.
作者信息
Feller G, Sonnet P, Gerday C
机构信息
Laboratory of Biochemistry, Université de Liège, Liège-Sart Tilman, Belgium.
出版信息
Appl Environ Microbiol. 1995 Dec;61(12):4474-6. doi: 10.1128/aem.61.12.4474-4476.1995.
Abstract
A class C beta-lactamase has been purified from the culture supernatant of the antarctic psychrophile Psychrobacter immobilis A8. This psychrophilic beta-lactamase displays a low level of thermal stability and a low optimal temperature of activity. In contrast to other cold-adapted enzymes, its level of specific activity is not higher than that of mesophilic class C beta-lactamases.
摘要
已从南极嗜冷菌不动嗜冷杆菌A8的培养上清液中纯化出一种C类β-内酰胺酶。这种嗜冷β-内酰胺酶热稳定性较低，活性的最适温度也较低。与其他适应低温的酶不同，其比活性水平并不高于嗜温C类β-内酰胺酶。
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