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Data-mining of the Meloidogyne incognita degradome and comparative analysis of proteases in nematodes.

机译:线虫根结线虫降解组的数据挖掘和蛋白酶的比较分析。

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摘要

Proteases perform essential physiological functions in all living organisms. In parasitic helminths, they are of particular importance for tissue penetration, digestion of host tissues for nutrition, and evasion of host immune responses. The recent availability of the genome sequence of the nematode Meloidogyne incognita has allowed the analysis of the protease repertoire of this major crop pathogen. The M. incognita degradome consists of at least 334 proteases that are distributed into 43 families of the five known catalytic classes. Expression profiling identified protease genes with a differential transcript level between eggs and infective juveniles. Comparing the M. incognita degradome with those of five other nematodes showed discrepancies in the distribution of some protease families, including large expansion in some families, that could reflect specific aspects of the parasitic lifestyle of this organism. This comparative study should provide a framework for deciphering the diversity of protease-mediated functions in nematodes.
机译:蛋白酶在所有活生物体中均具有基本的生理功能。在寄生性蠕虫中,它们对于组织渗透,消化宿主组织以获取营养以及逃避宿主免疫反应特别重要。线虫根结线虫的基因组序列的最新可用性使得可以分析该主要农作物病原体的蛋白酶库。隐杆线虫降解组由至少334种蛋白酶组成,这些蛋白酶分布在五个已知催化类别的43个家族中。表达谱鉴定出的蛋白酶基因在卵和感染性幼体之间具有不同的转录水平。将马氏隐孢子虫的降解组与其他五个线虫的降解组进行比较,发现某些蛋白酶家族的分布存在差异,包括某些家族中的大量扩增,这可能反映了该生物体寄生虫生活方式的特定方面。这项比较研究应为解密线虫中蛋白酶介导的功能的多样性提供一个框架。

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