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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Haemonchus contortus GA1 antigens: Related, phospholipase C-sensitive, apical gut membrane proteins encoded as a polyprotein and released from the nematode during infection
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Haemonchus contortus GA1 antigens: Related, phospholipase C-sensitive, apical gut membrane proteins encoded as a polyprotein and released from the nematode during infection

机译:捻转血矛线虫GA1抗原:相关的磷脂酶C敏感,顶肠膜蛋白编码为多蛋白并在感染过程中从线虫释放

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摘要

It was previously shown that the Haemonchus contortus apical gut surface proteins p46, p52, and p100 induced protective immunity to challenge infections in goats. Here, it is shown that the three proteins are all encoded by a single gene (GA1) and initially expressed in adult parasites as a polyprotein (p100~GA1). p46~GA1 and p52~GA1 are related pro- teins with 47/100 sequence identity, including a cysteine- containing region, which appears to confer secondary struc- ture to these proteins, and a region with sequence similarity to bacterial Tolb proteins.
机译:先前已证明,捻转血矛线虫(Haemonchus contortus)顶肠表面蛋白p46,p52和p100诱导保护性免疫力,以挑战山羊的感染。此处显示,这三种蛋白质均由单个基因(GA1)编码,并最初在成人寄生虫中以多蛋白(p100〜GA1)的形式表达。 p46〜GA1和p52〜GA1是具有47/100序列同一性的相关蛋白,包括一个半胱氨酸含区,该区似乎赋予了这些蛋白质二级结构,以及一个与细菌Tolb蛋白质具有序列相似性的区域。

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