Gould K G, Scotney H, Townsend A R, Bastin J, Brownlee G G
J Exp Med. 1987 Sep 1;166(3):693-701. doi: 10.1084/jem.166.3.693.
We have constructed two chimeric influenza hemagglutinin (HA) genes in which the HA1 and HA2 subunits of the HA molecule have been interchanged between influenza A/PR/8/34 (H1 subtype) and A/NT/60/68 (H3 subtype). These genes were used to construct recombinant vaccinia viruses that expressed intact chimeric HA. These recombinant viruses were used to test whether murine CTL recognize antigenic determinants in either the HA1, HA2, or both subunits. We found that both subunits of the HA molecule contain determinants for CTL. This implies that CTL have, at least in part, separate antigenic determinants from B lymphocytes, which recognize mainly epitopes within the HA1 subunit.
我们构建了两个嵌合流感血凝素(HA)基因,其中HA分子的HA1和HA2亚基在甲型流感病毒A/PR/8/34(H1亚型)和A/NT/60/68(H3亚型)之间进行了互换。这些基因被用于构建表达完整嵌合HA的重组痘苗病毒。这些重组病毒被用于测试小鼠细胞毒性T淋巴细胞(CTL)是否识别HA1、HA2或两个亚基中的抗原决定簇。我们发现HA分子的两个亚基都含有CTL的决定簇。这意味着CTL至少部分具有与B淋巴细胞不同的抗原决定簇,B淋巴细胞主要识别HA1亚基内的表位。