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Dive into the research topics where Xu Xuewei is active.

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Featured researches published by Xu Xuewei.


Archive | 2016

来源于海洋细菌 Altererythrobacter luteolus SW109 T 的新型酯酶E29 的克隆表达及其酶学性质

李正阳; Li Zheng-Yang; 戎振; Rong Zhen; 王昭; Wang Zhao; 霍颖异; Huo Yingyi; 孟凡旭; Meng Fanxu; 王春生; Wang Chunsheng; 崔恒林; Cui Henglin; 许学伟; Xu Xuewei

目的克隆表达一个来源于海洋细菌的酯酶E29,并研究其酶学性质。 方法从细菌Altererythrobacter luteolus SW109T中筛选并扩增出一个酯酶基因,将其克隆至pSMT3载体上,并将重组质粒转化至大肠杆菌BL21(DE3) 中进行异源表达,分析表达产物的酶学性质。 结果氨基酸序列分析结果表明,酯酶E29属于脂类水解酶第二家族(Family II)。酶学性质分析结果显示,酯酶E29的最适反应底物为对硝基苯酚丁酸酯,最适反应温度为45 °C,最适反应pH为8.5;10 mmol/L的Co2+和Mn2+及15%的异丙醇和乙腈能强烈抑制酯酶E29的活性,1%的SDS能使酶失活,甘油的存在能促进酶活性。 结论酯酶E29是一个海洋来源的新型酯酶,其具有较高的酶活力值、较宽的底物谱以及对部分有机溶剂和金属离子较好的耐受性,在工业方面具有潜在的应用价值。


Archive | 2012

Low-temperature esterase and coding gene and use thereof

Xu Xuewei; Wu Min; Jiang Xiawei; Wang Chunsheng; Yang Junyi; Liu Zhensheng


Archive | 2014

Bacillus marinus and method for producing catalase by using same

Huo Yingyi; Xu Xuewei; Wang Chunsheng; Wu Min; Zhang Xinqi; Pan Jie


Archive | 2013

Ocean catalase production bacteria and directional screening method

Wu Yuehong; Xu Xuewei; Wang Chunsheng; Wu Min; Zhang Xinqi; Pan Jie


Archive | 2013

Marine bacterial novel esterase, as well as preparation method and application thereof

Wu Yuehong; Jiang Xiawei; Xu Xuewei; Wei Xiaolian; Wang Chunsheng; Wu Min


Journal of Zhejiang University (Science Edition) | 2010

Detection of pathogenic Vibrio in the ballast water by polymerase chain reaction

Huo Yingyi; Xu Xuewei; Wang ChunSheng; Huang Lei; Wu Gang; Wu Min


Archive | 2015

Abyssal deposit-derived esterase EST22 as well as coding gene and application thereof

Xu Xuewei; Huo Yingyi; Li Zhengyang; Wang Chunsheng


Archive | 2017

Novel saline-alkaline resistant esterase derived from deep-sea bacterium and application thereof

Huo Yingyi; Xu Xuewei; Jian Shuling; Wu Yuehong; Wang Chunsheng


Archive | 2017

Recombinant carboxylesterase DMWf18-558 originated from deep sea, and coding gene and application thereof

Liu Qian; Xu Xuewei; Huo Yingyi; Cui Henglin; Wang Chunsheng


Archive | 2017

Organic solvent and surfactant resistant alkaline esterase and application thereof

Xu Xuewei; Huo Yingyi; Jian Shuling; Wang Chunsheng

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Wang Chunsheng

State Oceanic Administration

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Wu Min

Central South University

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Liu Zhensheng

Ocean University of China

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