Cloning and analysis of a Trichinella pseudospiralis muscle larva secreted serine protease gene.

Cloning and analysis of a Trichinella pseudospiralis muscle larva secreted serine protease gene.
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DOI:
10.1016/j.vetpar.2008.10.036
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发表时间:
2009-02-23
影响因子:
2.6
通讯作者:
Connolly, Bernadette
Connolly, Bernadette
中科院分区:
农林科学2区
文献类型:
--
作者:
Cwiklinski, Krystyna;Meskill, Diana;Robinson, Mark W.;Pozio, Eduardo;Appleton, Judith A.;Connolly, Bernadette

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旋毛虫属的线虫寄生虫是细胞内和不同的生命周期阶段侵入肠上皮和骨骼肌细胞。在属内,旋毛虫和旋毛虫假螺旋在宿主-寄生虫复合物形成和宿主免疫调节方面表现出物种特异性差异。寄生虫的排泄-分泌(ES)蛋白在宿主-寄生虫界面起着重要的作用,并被认为是这些生物学差异的基础。丝氨酸蛋白酶是螺旋体ES蛋白中最丰富的一组,并且已经确定了肌肉幼虫特异性TspSP-1丝氨酸蛋白酶的多个亚型。最近,在假螺旋体肌肉幼虫中发现了一个类似的蛋白(TppSP-1)。在这里,我们报道了TppSP-1全长转录本的克隆和特征,并提供了TppSP-1和TppSP-1之间的比较数据。
Nematode parasites of the genus Trichinella are intracellular and distinct life cycle stages invade intestinal epithelial and skeletal muscle cells. Within the genus, Trichinella spiralis and Trichinella pseudospiralis exhibit species-specific differences with respect to host-parasite complex formation and host immune modulation. Parasite excretory-secretory (ES) proteins play important roles at the host-parasite interface and are thought to underpin these differences in biology. Serine proteases are among the most abundant group of T. spiralis ES proteins and multiple isoforms of the muscle larvae-specific TspSP-1 serine protease have been identified. Recently, a similar protein (TppSP-1) in T. pseudospiralis muscle larvae was identified. Here we report the cloning and characterisation of the full-length transcript of TppSP-1 and present comparative data between TspSP-1 and TppSP-1.
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