最近,美国科学家发现引起艾滋病的HIV含有一叫做的tat基因,将有助于解释HIV如何复制和怎样损害细胞。业已知道,当tat在受到感染的细胞中被激活时,它所编码的蛋白质便会进入到细胞核内并促使病毒大量复制,这也许是由于激活了叫做启动子的病毒基因组片 Recently, American scientists discovered that the HIV that causes AIDS contains a gene called tat, which will help explain how HIV replicates and how it damages cells. It is known that when tat is activated in infected cells, the protein encoded by it enters the nucleus and promotes a large number of viral replications. This may be due to the activation of a viral genome called a promoter.