|本期目录/Table of Contents|

[1]梅慧珍,陈安利,夏定国,等.黄星天牛中肠中内切葡聚糖酶的鉴定与酶活性测定[J].江苏农业科学,2016,44(11):165-168.
 Mei Huizhen,et al.Identification and enzyme activity determination of endoglucanase from midgut of Psacothea hilaris(Coleoptera:Cerambycidae)[J].Jiangsu Agricultural Sciences,2016,44(11):165-168.
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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11期
页码:
165-168
栏目:
植物保护
出版日期:
2016-11-25

文章信息/Info

Title:
Identification and enzyme activity determination of endoglucanase from midgut of Psacothea hilaris(Coleoptera:Cerambycidae)
作者:
梅慧珍1 陈安利3 夏定国12 赵巧玲12 裘智勇12
1.江苏科技大学生物技术学院,江苏镇江 212018; 2.中国农业科学院蚕业研究所,江苏镇江 212018;
3.云南省农业科学院蚕桑蜜蜂研究所,云南蒙自 661101
Author(s):
Mei Huizhenet al
关键词:
黄星天牛中肠内切葡聚糖酶鉴定结构域保守区降解纤维素
Keywords:
-
分类号:
Q556+.2;S433.5
DOI:
-
文献标志码:
A
摘要:
内切葡聚糖酶(Cx)是纤维素酶系中的主要成分,它包含多种同工酶,能够将可溶性纤维素水解成还原性寡糖。采用 Native-PAGE技术对黄星天牛中肠中Cx进行电泳分离,结合LC-MS/MS技术对黄星天牛中肠中Cx种类进行鉴定,并对其性质进行研究。结果显示黄星天牛中肠中含有多种Cx,通过结构域分析,确定为GHF5家族蛋白,有共同的保守区(IIYETFNEPT),Cx最适反应温度为50 ℃,最适pH值为6.0,且具有较广的pH值稳定范围,低浓度的Mg2+与Co2+对该酶有激活作用,高浓度的Mg2+与Cu2+对该酶有抑制作用。这一结果可为黄星天牛降解纤维素机制的研究提供理论基础,为进一步研究天牛中肠组织的生理功能提供基础信息。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2015-08-20
基金项目:国家自然科学基金(编号:31372377)。
作者简介:梅慧珍(1990—),女,安徽宣城人,硕士研究生,主要从事生物化学与分子生物学研究。E-mail:huizhenmei @126.com。
通信作者:夏定国,副研究员。 E-mail:xiadingguo@126.com。
更新日期/Last Update: 2016-11-25