生物技术通报 ›› 2013, Vol. 0 ›› Issue (4): 179-184.

• 研究报告 • 上一篇    下一篇

日本蟾蜍MCL-1 cDNA的克隆及生物信息学分析

张姝芳 袁进强 黄慧 诸葛慧 徐跃 杨仙玉   

  1. 浙江农林大学林业与生物技术学院,临安 311300
  • 收稿日期:2012-10-08 修回日期:2013-04-22 出版日期:2013-04-22 发布日期:2013-04-22
  • 作者简介:通讯作者:杨仙玉,女,教授,研究方向:原生动物发育学、中药材多肽类有效成分的基因克隆与研发;E-mail :xianyu_yang@hotmail.com
  • 基金资助:
    国家自然科学基金项目(31071181),2011 年度浙江省科技创新活动计划项目(2011R412042) 作者简历:张姝芳,女,硕士研究生,研究方向:野生动物资源保护与利用;E-mail :zsf08070126@163.com

Cloning and Bioinformatics Analysis of MCL-1 cDNA of Bufo japonicus formosus

Zhang Shufang, Yuan Jinqiang, Huang Hui, Zhuge Hui, Xu Yue, Yang Xianyu   

  1. School of Forestry and Biotechnology,Zhejiang A&F University,Lin’an 311300
  • Received:2012-10-08 Revised:2013-04-22 Published:2013-04-22 Online:2013-04-22

摘要: 克隆日本蟾蜍(Bufo japonicus formosus)髓细胞白血病基因-1(myeloid cell leukemia-1,mcl-1),并进行序列分析。 通过菌落PCR 对日本蟾蜍皮肤cDNA 质粒文库筛选获得目的基因。运用生物信息学方法对该基因进行分析,预测其编码蛋白的结 构和功能。序列分析表明mcl-1 基因(GenBank 登录号为JX219482)的cDNA 全长为1 090 bp,5' 端和3' 端非翻译区域分别为19 bp 和432 bp,ORF 由639 个碱基组成,编码由212 个氨基酸残基组成的蛋白质。经氨基酸序列同源性比对发现,日本蟾蜍与非洲 爪蟾(Xenopus laevis)的同源性为60%,与其他7 种动物的同源性在38%-55% 之间。MCL-1 氨基酸序列构建的进化树与传统动物 分类学相符。日本蟾蜍MCL-1 与人类同源蛋白具有相似的结构特征,对其cDNA 序列的进一步分析,将为研究其生物学功能和药 物研发奠定基础。

关键词: 日本蟾蜍, 髓细胞白血病基因-1, 基因克隆, 序列分析

Abstract: It was to clone mcl-1(myeloid cell leukemia-1)gene from Bufo japonicus formosus and analyze the sequence of the gene. The plasmid cDNA library of adult Japanese toad Bufo japonicus formosus skin was screened by bacterial colony PCR. The sequence was analyzed by bioinformatics method, and the structure and function of MCL-1 were predicted. Result showed that the full length cDNA of mcl-1(GenBank accession number :JX219482)was 1 090 bp. The 5'- and 3'-untranslated regions are 19 bp and 432 bp, respectively, while the ORF is 639 bp encoding 212 amino acid residues. Homologous analysis indicated the similarity of Bufo japonicus formosus with Xenopus laevis was 60%, and 38%-55% with other species. The phylogenetic tree of MCL-1 amino acid sequences was consistent with morphological taxonomic characters. The analysis indicates that the structural characteristics of MCL-1 of B. japonicus formosus seem to be similar with those of human. This report would become the basis for the further studies on MCL-1.

Key words: Bufo japonicus formosus, MCL-1 Gene cloning, Sequence analysis