BACKGROUND & OBJECTIVE: The COOH-terminal amino acid deletions of hepatitis B virus X protein (HBx) commonly exist in human hepatocellular carcinoma (HCC). This study was designed to explore the biological effects of truncated HBx and wild type HBx on HCC cell line Huh7. METHODS: The mutants of HBx with 10, 20, 30, or 40 amino acids deletion at COOH-terminal (HBx3′-10, -20, -30, -40), or 37 amino acids deletion at the middle (HBx-XMR) were constructed. The recombinant truncated HBx and wild type HBx express...
【基金】
国家自然科学基金项目(No.30070344,No.30070839)~~
【更新日期】
2005-11-25
【分类号】
R735.7;
【正文快照】
X基因是一种仅存在于嗜肝乙型肝炎病毒(hepatitis B virus,HBV)的基因,其编码的X蛋白不直接结合DNA双链,而是通过蛋白-蛋白间的相互作用在HBV复制和表达中起重要作用,并广泛参与宿主细胞的基因表达、反式激活和细胞信号转导过程。日益增多的证据表明它是引起肝癌发生的直接原因