中文摘要：

设计小鼠Txt5基因的特异性引物,将小鼠c DNA作为模板,用PCR扩增出m Txt5编码区,并加入HA标签序列.将这一片段插入p MD-18T载体,再亚克隆至p Adtrack-cmv穿梭载体上.线性化后,转化BJ5183感受态细胞,在BJ5183中发生同源重组获得p Ad-Txt5质粒.p Ad-Txt5线性化后转染293A细胞,包装得到含Txt5基因的病毒.将病毒溶液感染大鼠原代心肌细胞,一段时间后观察绿色荧光,然后通过RT-PCR和免疫印迹法检测HA标签蛋白的表达.结果表明成功构建小鼠Txt5腺病毒表达载体并实现在大鼠原代心肌细胞中的表达.

英文摘要：

Specific primers for the mouse Txt5 gene were designed and employed to amplify the coding sequence using mouse cDNAs as the template .HA - tagged sequence was induced into the PCR primers .The PCR product was inserted into the pMD -18T vector and subcloned into pAd - track - cmv shuttle vector .The recombinant plasmid was linearized and transformed into bacteria BJ5183 .After homologous recombination in the bacteria ,plasmid pAd - Txt5 was obtained .Linearized pAd - Txt5 was transfected into 293 A cells .Then , the recombinant virus containing Txt5 was obtained after packaging . Cardiomyocytes were infected with the collected virus fluid .To detect the expression of Txt5 ,green fluorescence protein （GFP） was observed by green fluorescence and RT - PCR , immunoblotting was performed . The results showed that mouse Txt5 adenovirus vector was constructed successfully ,and it could induce the sequence coding Txt5 - HA into cardiomyocytes .