|本期目录/Table of Contents|

[1]李钰华,李爽,盖颖.毛白杨木葡聚糖内转糖苷酶/水解酶PtoXTH35原核可溶性表达方法研究[J].江苏农业科学,2019,47(08):33-36.
 Li Yuhua,et al.Study on prokaryotic soluble expression method of xyloglucan endotransglycosylase/hydrolase Pto XTH35 in Populus tomentosa[J].Jiangsu Agricultural Sciences,2019,47(08):33-36.
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毛白杨木葡聚糖内转糖苷酶/水解酶PtoXTH35
原核可溶性表达方法研究
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第47卷
期数:
2019年第08期
页码:
33-36
栏目:
生物技术
出版日期:
2019-05-19

文章信息/Info

Title:
Study on prokaryotic soluble expression method of xyloglucan endotransglycosylase/hydrolase Pto XTH35 in Populus tomentosa
作者:
李钰华 李爽 盖颖
北京林业大学生物科学与技术学院/林木育种国家工程实验室,北京 100083
Author(s):
Li Yuhuaet al
关键词:
毛白杨木葡聚糖内转糖苷酶/水解酶原核表达包涵体可溶性蛋白
Keywords:
-
分类号:
S792.117.01
DOI:
-
文献标志码:
A
摘要:
从毛白杨中克隆得到木葡聚糖内转糖苷酶/水解酶PtoXTH35基因,根据SignalIP在线软件预测蛋白信号肽,并分别构建至pET28a、pET32a、pGEX-4t-1、pMAL-c5e、pET 43.1a等5种原核表达载体,经双酶切和测序验证后转化至BL21(DE3)感受态,使用终浓度为0.4 mmol/L的异丙基-β-D-硫代吡喃半乳糖苷(IPTG)诱导其表达目的蛋白。经SDS-PAGE检测,结果表明5种载体均可表达目的蛋白,pET28a、pET32a、pGEX-4t-1等3种载体所表达蛋白均以包涵体的形式存在,而pMAL-c5e和pET 43.1a载体携带蛋白表达量高并且所表达蛋白50%为可溶性蛋白,实现了毛白杨PtoXTH35在原核表达系统中的高效可溶性表达,该试验为后续进一步研究毛白杨PtoXTH35的体外功能奠定了基础。
Abstract:
-

参考文献/References:

[1]Rose J K,Braam J,Fry S C,et al. The XTH family of enzymes involved in xyloglucan endotransglucosylation and endohydrolysis:current perspectives and a new unifying nomenclature[J]. Plant & Cell Physiology,2002,43(12):1421-1435.
[2]Albersheim,P. Xyloglucans in the primary cell wall[M]. New York:Academic Press,1976:225-274.
[3]Smith R C,Fry S C. Endotransglycosylation of xyloglucans in plant cell suspension cultures[J]. Biochemical Journal,1991,279(Pt 2):529-535.
[4]Geisler-Lee J,Geisler M,Coutinho P M,et al. Poplar carbohydrate-active enzymes:Gene identification and expression analyses[J]. Plant Physiology,2006,140(3):946-962.
[5]杜丽萍,沈昕,陈少良,等. 细胞壁重构关键酶木葡聚糖内转糖苷酶/水解酶(XTH)的研究进展[J]. 农业生物技术学报,2010,18(3):604-609.
[6]Baumann M J,Eklof J M,Michel G,et al. Structural evidence for the evolution of xyloglucanase activity from xyloglucan endo-transglycosylases:biological implications for cell wall metabolism[J]. Plant Cell,2007,19(6):1947-1963.
[7]Johansson P,Brumer H,Baumann M J,et al. Crystal structures of a poplar xyloglucan endotransglycosylase reveal details of transglycosylation acceptor binding[J]. Plant Cell,2004,16(4):874-886.
[8]Kallas A M,Piens K,Denman S E,et al. Enzymatic properties of native and deglycosylated hybrid aspen (Populus tremula×tremuloides) xyloglucan endotransglycosylase 16A expressed in Pichia pastoris[J]. Biochemical Journal,2005,390(Pt1):105-113.
[9]Saura-Valls M,Faure R,Ragas S,et al. Kinetic analysis using low-molecular mass xyloglucan oligosaccharides defines the catalytic mechanism of a Populus xyloglucan endotransglycosylase[J]. Biochemical Journal,2006,395(1):99-106.
[10]Han Y S,Wang W,Sun J,et al. Populus euphratica XTH overexpression enhances salinity tolerance by the development of leaf succulence in transgenic tobacco plants[J]. Journal of Experimental Botany,2013,64(14):4225-4238.

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备注/Memo

备注/Memo:
收稿日期:2018-01-15
基金项目:国家自然科学基金(编号:31300498)。
作者简介:李钰华(1992—),女,山西临汾人,硕士研究生,主要从事生物化学与分子生物学研究。E-mail:liyuhua921216@163.com。
通信作者:盖颖,博士,副教授,主要从事生物化学与分子生物学研究。E-mail:gaiying@bjfu.edu.cn。
更新日期/Last Update: 2019-04-20