丙型肝炎病毒非结构蛋白5A结合蛋白37基因的克隆化研究

CLONING OF THE HEPATITIS C VIRUS NONSTRUCTURAL PROTEIN 5A BINDING PROTEIN 37 CODING GENE

丙型肝炎病毒 (HCV)非结构蛋白 5A(NS5A)可与多种细胞内蛋白发生结合 ,涉及调节细胞生长、干扰素耐受、脂质代谢和其他细胞内信号转导通路。本实验通过酵母双杂交技术筛选得到一个与NS5A相结合的未知功能蛋白基因 ,命名为NS5ABP37,根据Gen Bank数据库推定蛋白编码序列的信息 ,应用反转录聚合酶链反应 (PCR)扩增出该基因序列。连接入酵母和真核细胞表达载体表达成功 ,并经回交实验证实NS5A与NS5ABP37的结合作用 ,为进一步研究奠定基础。

The nonstructural protein 5A (NS5A) of the hepatitis C virus (HCV) has been shown to interact with a variety of cellular proteins and implicated in the regulation of cell growth, interferon resistance, and other cellular signaling pathways. Using the yeast-two hybrid method, we have isolated a clone that encodes a novel NS5A--associated binding protein: NS5ABP37. Reverse transcription polymerase chain reaction (RT-PCR) method was employed to amplify the full fragment,and the plasmid pGADT7-NS5ABP37 with the Saccharomyces cerevisiae vector pGADT7 was constructed. To prove the interaction, yeast cell Y187 transformed with pGADT7-NS5ABP37 was mated with yeast cell AH109 containing pGBKT7-NS5A to verify the interaction between the novel protein coded by the new gene NS5ABP37 and NS5A.