|本期目录/Table of Contents|

[1]龚丽,李云霞.一种新型ATP-依赖型ClpP家族蛋白水解酶PlclpP基因的克隆、表达和酶学特性[J].江苏农业科学,2016,44(05):47-50.
 Gong Li,et al.Molecular cloning,expression and characterization of a novel PlclpP gene encoding ATP-dependent ClpP protease of Paenibacillus lautus CHN26[J].Jiangsu Agricultural Sciences,2016,44(05):47-50.
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一种新型ATP-依赖型ClpP家族蛋白水解酶PlclpP基因的克隆、表达和酶学特性(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第44卷
期数:
2016年05期
页码:
47-50
栏目:
生物技术
出版日期:
2016-05-25

文章信息/Info

Title:
Molecular cloning,expression and characterization of a novel PlclpP gene encoding ATP-dependent ClpP protease of Paenibacillus lautus CHN26
作者:
龚丽 李云霞
上海海洋大学食品科学与技术学院/农业部水产品贮藏保鲜质量安全风险评估重点实验室,上海 201306
Author(s):
Gong Liet al
关键词:
ClpP家族蛋白水解酶类芽孢杆菌基因克隆表达酶学特性
Keywords:
-
分类号:
Q789
DOI:
-
文献标志码:
A
摘要:
运用基因克隆技术,以分离鉴定获得的蛋白水解酶高活性类芽孢杆菌(Paenibacillus lautus)CHN26菌株的基因组DNA为模板,经克隆鉴定该菌株是一种新型ATP-依赖型ClpP家族蛋白水解酶PlclpP基因,全长585 bp,编码194个氨基酸,分子量约为21 ku。采用大肠杆菌(Eschericia coli)pET表达系统构建PlclpP基因表达质粒pET-28-PlclpP,并在大肠杆菌BL21中实现了重组PlClpP蛋白的表达。利用组氨酸标签(His-tag)亲和纯化法获得 PlClpP 纯化蛋白,发现PlClpP可能与宿主菌未知伴侣分子形成蛋白复合物。PlClpP复合物具有ATP-依赖型酪蛋白水解酶活性,最适反应温度为40 ℃、pH值7.0。表面活性剂强烈抑制PlClpP复合物的酶活性,而常规丝氨酸蛋白酶抑制剂对其活性没有抑制作用。本研究结果为蛋白酶新基因资源的开发、ClpP家族蛋白酶的基础理论和应用研究奠定了基础。
Abstract:
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参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-04-07
基金项目:上海市科学技术委员会项目(编号:09320503600)。
作者简介:龚丽(1989—),女,上海人,硕士研究生,主要从事食品质量与安全研究。E-mail:emo_jun@163.com。
更新日期/Last Update: 2016-05-25