首页|地黄类RghBNG基因的克隆与生物信息学分析

地黄类RghBNG基因的克隆与生物信息学分析

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RghBNG 基因是一种地黄(Rehmannia glutinosa)响应非生物胁迫和植物生长调节剂的基因。类RghBNG基因是一个与RghBNG基因核酸序列同源的地黄基因。克隆了地黄类RghBNG基因,预测其编码蛋白质的性质、结构和功能。用RNA提取试剂盒提取地黄总RNA,反转录成cDNA,根据已知地黄的RghBNG基因碱基序列设计上、下游引物,以cDNA为模板,利用PCR扩增产生包括RghBNG基因和类RghBNG基因在内的5个cDNA片段,其中类RghBNG基因全长1974 bp,包含一个486 bp的ORF,编码161个氨基酸残基组成的蛋白质;蛋白质等电点为9.45,分子量为18.6 kDa,二级结构中延伸链占34.78℅,无规则卷曲占33.54℅,α-螺旋占21.74℅,β-螺旋占9.94℅,有两个可能的跨膜区,参与翻译和脂肪酸代谢。
Cloning and Bioinformatics Analysis of RghBNG-like Gene in Rehmannia glutinosa
RghBNG gene is a novel abiotic stress and plant growth regulator-responsive gene from Rehmannia glutinosa,while RghBNGLgene is RghBNG-like gene homologous to RghBNG gene at the nucleotide level. RghBNG-like gene was successfully cloned from Rehmannia glutinosa,and predicted byabioinformatics softwares. The total RNA was extracted from Rehmannia glutinosa leaves with RNA extraction kit,and then used as reverse transcriptional template to clone RghBNG-like gene with the same primer pair as that for RghBNG gene. RghBNG-like gene was 1 974 bp long,including a 486 bp ORF,encoding for 161 amino acid residues. The protein isoelectric point and molecular weight are 9.45 and 18.6 kDa. Its secondary structure consists of 34.78℅ extended strand,33.54℅ random coil,21.74℅ alpha helix and 9.94℅ β-turn. It has two transmembrane helical segments and takes part in translation and fatty acid metabolism.

Rehmannia glutinosaRghBNG geneRghBNG-like geneRT-PCRbioinformatics analysis

周延清、张瑜、王向楠、钱慧杰、段红英、王慧娜

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河南师范大学生命科学学院,河南 新乡 453007

地黄(Rehmannia glutinosa) RghBNG基因 类RghBNG基因 RT-PCR 生物信息学分析

河南省基础与前沿技术研究计划项目河南省教育厅科学技术研究重点项目

09230041000914B180028

2016

湖北农业科学
湖北省农业科学院 华中农业大学 长江大学 黄冈师范学院

湖北农业科学

CSTPCD
影响因子:0.442
ISSN:0439-8114
年,卷(期):2016.55(15)
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