当前位置: 首页 > 文章 > 金黄地鼠Dpl基因克隆及其组织特异性表达的研究 中国兽医杂志 2008,44 (11) 3-6
Position: Home > Articles > Dpl gene sequence and real-time polymerase chain reaction analysis of gene expression in Golden hamster Chinese Journal of Veterinary Medicine 2008,44 (11) 3-6

金黄地鼠Dpl基因克隆及其组织特异性表达的研究

作  者:
李玉荣;周向梅;尹晓敏;杨建民;赵德明
单  位:
中国农业大学动物医学院
关键词:
金黄地鼠;Dpl;克隆;实时荧光定量PCR;mRNA表达
摘  要:
本文成功克隆了金黄地鼠Dpl(PrP-like protein doppel,Doppel)基因,并采用实时荧光定量PCR法对其组织特异性表达进行了研究。根据已发表家鼠Dpl基因序列设计引物,采用PCR直接扩增金黄地鼠(Hamster)的Dpl基因CDs区,序列测定和分析表明金黄地鼠的Dpl基因CDs区全长537 bp,编码178个氨基酸的前体蛋白,不存在基因多态性。经基因序列对比分析,金黄地鼠与其他10种属哺乳动物Dpl基因有较高同源性,均为70.8%以上,且与鼠科Dpl序列的同源性最高(86%)。实时定量PCR结果表明,在所检测组织中,Dpl mRNA在睾丸表达量最高,其次为脾脏、心脏、骨髓和脑,其在肝脏、肺脏、肾脏和肌肉中的表达低于检测水平;成年动物与未成年动物相比,在睾丸组织的表达量,成年鼠显著高于未成年鼠;在成年鼠脑组织检测不到Dpl mRNA的表达。本研究对金黄地鼠Dpl基因序列进行分析测定,并对其在不同组织的生理表达进行了定量,以期为其功能的进一步研究提供基础数据。
译  名:
Dpl gene sequence and real-time polymerase chain reaction analysis of gene expression in Golden hamster
作  者:
LI Yu-rong1,2,ZHOU Xiang-mei1,YIN Xiao-min1,YANG Jian-min1,ZHAO De-ming1,(1.National Animal Transmissible Spongiform Encephalopathies Laboratory,College of Veterinary Medicine,China Agricultural University,Beijing 100193,China;2.Department of Animal Science and Technology,Hebei Agricultural University,Baoding 071001,China)
关键词:
Golden hamster;Dpl;clone;Real-time RT-PCR;mRNA expression
摘  要:
In the present study,Dpl cDNA has been cloned from hamster,a popular animal model.The complete sequence of Dpl consist of 537 nucleotides encoding 178 amino acids.No nucleotide polymorphism in the open reading frame of the hamster gene was found.Sequence analysis by DNAMAN software showed that hamster Dpl has the highest homology with house mouse Dpl(86%).The quantification result showed in hamster that 5 tissues of Dpl mRNA could be detected,with testis the highest levels,followed by spleen,heart,bone marrow and cerebrum.The expression levels in liver,lung,kidney and muscle were under detectable levels;the testis expression levels in adult hamster is significantly higher than that of adult hamster.In adult house Dpl mRNA can't be detected.Our study provided the first quantitative,tissue-specific data of Dpl physiochemical expression for further studies on its functions.

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