首页|Nkx2.2的克隆及其在C6细胞中的表达

Nkx2.2的克隆及其在C6细胞中的表达

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目的:克隆大鼠转录因子Nkx2.2,构建其真核表达载体,并观察其在大鼠C6胶质瘤细胞系中的表达. 方法:利用RT-PCR从大鼠脑组织总RNA中扩增包含Nkx2-2编码区的cDNA片段,克隆连接至pMD20-T载体,再以pMD20-T-Nkx2.2为模板扩增出Nkx2.2编码区序列,将其克隆到真核表达载体pcDNA3-1-myc-his(-)中,测序验证后,转染C6胶质瘤细胞.用anti-His抗体和间接免疫荧光染色法检测Nkx2.2在C6细胞中的表达. 结果:测序证实所克隆的Nkx2.2编码区正确地连接入pcDNA3.1-myc-his(-)中,免疫荧光检测证实其在C6细胞中得到了有效表达. 结论:成功克隆了大鼠Nkx2.2编码区片段,构建了其真核表达载体,并在C6细胞中得到了有效表达,为进一步研究Nkx2.2基因的功能,尤其是探讨其在神经系统中的作用奠定了基础.
Cloning and expression of Nkx2.2 in C6 cells
AIM: To clone rat transcription factor Nkx2.2 and construct its eukaryotic expression vector, express it in C6 glioma cells. METHODS: RT-PCR was used to amplify fragment including Nkx2.2 gene code region from rat brain RNA, the PCR product was inserted into pMD20-T vector, then amplified Nkx2.2 coding region from pMD20-T-Nkx2.2 and inserted it into eukaryotic expression vector pcDNA3.1-myc-his( - ). After being confirmed by sequencing, the pcDNA3.1-Nkx2.2 was transfected into C6 glioma cells. The expression of Nkx2. 2 in C6 cells was detected by indirect immunofluorescent staining. RESULTS: Sequence analysis conformed that Nkx2. 2 was correctly inserted into pcDNA3.1-myc-his( - ) vector, C6 cells transfected with Nkx2.2 could efficiently express Nkx2.2 in cell nuclear. CONCLUSION: The cloning of rat Nkx2.2 and the construction of its eukaryotic expression vector were successful, Nkx2.2 was efficiently expressed in C6 cell nuclear. This study would lay the foundation for further research on the function of Nkx2.2 and its role in nervous system.

Nkx2.2cloneC6 celleukaryotic expression

王伟、王涛、徐清、关路媛、张斌

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第四军医大学基础部生物化学与分子生物学教研室,陕西,西安,710033

Nkx2.2 克隆 C6细胞 真核表达

国家自然科学基金国家自然科学基金

3077042030871239

2009

第四军医大学学报
第四军医大学

第四军医大学学报

CSTPCDCSCD北大核心
影响因子:0.599
ISSN:1000-2790
年,卷(期):2009.30(18)
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