生物技术通报 ›› 2015, Vol. 31 ›› Issue (6): 122-128.doi: 10.13560/j.cnki.biotech.bull.1985.2015.06.019

• 研究报告 • 上一篇    下一篇

人参euFUL基因的克隆与生物信息学分析

郭双双 刘翠晶 韩梅 杨利民   

  1. 吉林农业大学中药材学院 吉林农业大学省部共建生态恢复与生态系统管理国家重点实验室,长春 130118
  • 收稿日期:2014-10-26 出版日期:2015-06-19 发布日期:2015-06-20
  • 作者简介:郭双双,男,硕士生研究生,研究方向:微生物及分子生物学;E-mail:1530811226@qq.com
  • 基金资助:
    国家自然科学基金项目(31270371,31200178),国家科技支撑计划项目(2011BAI0301-02),吉林省科技成果转化项目(20125068)

Cloning and Bioinformatics Analysis of euFUL Gene in Panax ginseng

Guo Shuangshuang, Liu Cuijing, Han Mei, Yang Limin   

  1. State Key Laboratory for Ecological Restoration and Ecosystem Management of JLP-MOST Collective Construct-KLUER,College of Herbal Medicine,Jilin Agricultural University,Changchun 130118
  • Received:2014-10-26 Published:2015-06-19 Online:2015-06-20

摘要: 旨在研究人参(Panax ginseng C.A.Meyer)花的形成,根据GenBank数据库中基因片段设计特异引物,利用cDNA快速末端扩增方法(RACE),克隆了人参花中一个5'端部分缺失euFUL(命名为PgFuL)的编码区序列。获得的PgFUL基因由867个核苷酸组成,编码212个氨基酸。生物信息学分析结果显示,PgFUL编码蛋白分子质量为24.64 kD,等电点pI5.80,不含信号肽,无跨膜区。二级结构中α-螺旋结构占60.19%、延伸链占5.21%、无规则卷曲占34.60%。序列比对和系统进化分析表明,PgFUL人参PgMADS protein3(BAK20018.1)的序列同源性为100%,与加拿大蝙蝠葛(AGX01589.1)相似度达95%,属于A功能基因中的euFUL进化系。

关键词: euFUL基因, 生物信息学分析, 基因克隆, 人参

Abstract: To study the flower development of Panax ginseng, designing specific primers according to gene fragments in the GenBank data, and the 5' end deletion coding sequence of a euFUL(named PgFUL)gene in ginseng flower was cloned by the rapid amplification of cDNA ends(RACE). PgFUL consists of 867 nucleotides, and encoding a protein of 212 amino acids. The bioinformatics analysis shows that PgFUL-encoding protein has isoelectric point(pI)of 5.80 and a calculated molecular weight about 24.64 kD without transmembrane region and signal peptide. In the secondary structure, the percentage of α-helix, extended strand and random coil are 60.19%, 5.21% and 34.60%, respectively. The homologous analysis by sequence alignment and phylogenetic indicates that PgFUL is in 100% similarity with ginseng PgMADS protein3(BAK20018.1)and 95% with Menispermum canadense(AGX01589.1), which belongs to evolutionary euFUL in functional gene A.

Key words: euFUL gene, bioinformatics analysis, gene cloning, Panax ginseng