茶树亲环素基因cDNA全长的分析鉴定与原核表达

doi:10.13305/j.cnki.jts.2007.02.005

茶叶科学 ›› 2007, Vol. 27 ›› Issue (2): 120-126.doi: 10.13305/j.cnki.jts.2007.02.005

茶树亲环素基因cDNA全长的分析鉴定与原核表达

张亚丽^1,2，赵丽萍¹，马春雷^1,2，陈亮^1*

1. 中国农业科学院茶叶研究所茶树资源和遗传改良与分子生物学实验室，浙江杭州 310008；
2. 中国农业科学院研究生院，北京 100081

出版日期:2007-06-25 发布日期:2019-09-11
通讯作者: *陈亮， liangchen@mail.tricaas.com
作者简介:张亚丽（1982— ），女，河南洛阳人，硕士研究生，主要从事茶树分子生物学研究。
基金资助:
国家863计划（2006AA10Z171）、浙江省“钱江人才”计划项目（2006R10042）、浙江省重点科技项目（2004C22033）、人事部和教育部留学回国人员科研基金（2005-134，2005-383）内容之一

Molecular Identification, Bioinformatic Analysis and Prokaryotic Expression of the Cyclophilin Gene Full-length cDNA from Tea Plant (Camellia sinensis)

ZHANG Ya-li^1,2, ZHAO Li-ping¹, MA Chun-lei^1,2, CHEN Liang^1*

1. Lab for Tea Germplasm, Genetic Improvement and Molecular Biology, Tea Research Institute Chinese Academy of Agricultural Sciences, Hangzhou 310008, China;
2. Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China

Online:2007-06-25 Published:2019-09-11

摘要/Abstract

摘要： 通过对茶树新梢cDNA文库大量随机测序，获得了一个编码亲环素的全长基因，在GenBank登录，登录号为DQ904327。茶树亲环素基因cDNA全长949 bp，其中开放阅读框全长495 bp，编码蛋白质含有164个氨基酸，分子量约为17.47 kD，等电点约为8.54，它具备5’端非编码区的“CAAT”标志及3’端非编码区的”AATAAA”poly-A加尾信号。其推测的氨基酸序列经与26条其他生物亲环素蛋白氨基酸序列进行CLUSTAL W多序列联配并以Neighbor-Joining法进行进化树构建后，发现与水稻和小麦的相似性较高，达到85%以上。根据亲环素基因开放阅读框序列设计引物，构建了原核表达载体pET/Csin-Cyp，并在大肠杆菌BL21(DE3)中成功诱导出了一个分子量为23 kD的亲环素融合蛋白。

关键词: 茶树, 亲环素基因, 分析鉴定, 原核表达

Abstract: A cDNA clone, encoding cyclophilin, obtained by random sequencing of young shoot cDNA library from tea plant (Camellia sinensis). The full-length cDNA of the cyclophilin gene was 949 bp(GenBank accession No. DQ904327), containing a putative ORF of 495 bp, encoding 164 amino acids and the predicted MW were 17.47 kD and pI was 8.54, respectively. A “CAAT” signal in 5′ untranslated region and a polyadenylated signal of “AATAA”poly-A in 3′untranslated regions of cyclophilin mRNAs were found. The presumed amino acid sequences of tea plant were aligned with those of other 26 organisms through CLUSTAL W. The phylogenetic analysis based on the Neighbor-Joining method showed the similarity was greater than 85% between cyclophilin genes of tea plant and Oryza sativa (japonica cultivar-group), Solanum tuberosum, Triticum aestivum etc. Primers were designed on the open reading frame of the cyclephilin gene of tea plant to construct the expressive vector pET/Csin-Cyp. A recombinant protein about 23 kD in the Escherichia coli BL21 (DE3) was induced.

Key words: Camellia sinensis, cyclophilin, identification and analysis, prokaryotic expression

中图分类号:

S571.1
Q523

张亚丽，赵丽萍，马春雷，陈亮. 茶树亲环素基因cDNA全长的分析鉴定与原核表达[J]. 茶叶科学, 2007, 27(2): 120-126. doi: 10.13305/j.cnki.jts.2007.02.005.

ZHANG Ya-li, ZHAO Li-ping, MA Chun-lei, CHEN Liang. Molecular Identification, Bioinformatic Analysis and Prokaryotic Expression of the Cyclophilin Gene Full-length cDNA from Tea Plant (Camellia sinensis)[J]. Journal of Tea Science, 2007, 27(2): 120-126. doi: 10.13305/j.cnki.jts.2007.02.005.

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茶树亲环素基因cDNA全长的分析鉴定与原核表达

Molecular Identification, Bioinformatic Analysis and Prokaryotic Expression of the Cyclophilin Gene Full-length cDNA from Tea Plant (Camellia sinensis)

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