BOVINE CORONAVIRUS HEMAGGLUTININ PROTEIN

BOVINE CORONAVIRUS HEMAGGLUTININ PROTEIN
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DOI:
10.1016/0168-1702(85)90059-0
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发表时间:
1985-01-01
期刊:
影响因子:
5
通讯作者:
BRIAN, DA
BRIAN, DA
中科院分区:
医学3区
文献类型:
--
作者:
KING, B;POTTS, BJ;BRIAN, DA

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用链霉蛋白酶处理纯化的牛冠状病毒(Mebus 株)破坏了病毒颗粒表面糖蛋白 gp140、gp120、gp100 的完整性,减少了 gp26 的量并破坏了病毒的血凝活性。另一方面,菠萝蛋白酶破坏了gp120、gp100和gp26的完整性,但未能去除gp140,也未能破坏病毒血凝活性。这些实验表明 gp140 是病毒体血凝素。使用单特异性抗血清的免疫印迹研究表明,gp140 是一种二硫键连接的二聚体结构,可还原为 65 千道尔顿的单体。
Treatment of purified bovine coronvarius (Mebus strain) with pronase destroyed the integrity of virion surface glycoproteins gp140, gp120, gp100, reduced the amount of gp26 and destroyed the hemagglutinating activity of the virus. Bromelain, on the other hand, destroyed the integrity of gp120, gp100 and gp26 but failed to remove gp140 and failed to destroy viral hemagglutinating activity. These experiments suggest that gp140 is the virion hemagglutinin. Immunoblotting studies using monospecific antiserum demonstrate that gp140 is a disulfide-linked dimeric structure reducible to monomers of 65 kilodaltons.