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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.

DOI:10.1128/aem.61.12.4474-4476.1995
PMID:8534113
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC167757/
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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本文引用的文献

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Cold adaptation of proteins. Purification, characterization, and sequence of the heat-labile subtilisin from the antarctic psychrophile Bacillus TA41.蛋白质的冷适应性。来自南极嗜冷芽孢杆菌TA41的热不稳定枯草杆菌蛋白酶的纯化、表征及序列分析
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