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首页> 外文期刊>Vaccine >Identification of immunodominant T-cell epitopes present in glycoprotein 5 of the North American genotype of porcine reproductive and respiratory syndrome virus.
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Identification of immunodominant T-cell epitopes present in glycoprotein 5 of the North American genotype of porcine reproductive and respiratory syndrome virus.

机译:鉴定猪繁殖与呼吸综合征病毒北美基因型糖蛋白5中存在的免疫优势T细胞表位。

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摘要

Ninty-six pentadecapeptides spanning glycoprotein 5 (GP5) of porcine reproductive and respiratory virus (PRRSV) were screened for their ability to elicit a recall interferon-gamma response from peripheral blood mononuclear cells isolated from 22 pigs infected with up to two genetically divergent PRRSV strains. Two distinct regions (amino acid residues 117-131, LAALICFVIRLAKNC, and 149-163, KGRLYRWRSPVII/VEK) appeared to contain immunodominant T-cell epitopes based on their ability to stimulate above average numbers of interferon-gamma secreting cells as compared to other GP5 peptides. A survey of PRRSV isolates indicated that these two sites are relatively conserved with at most a two amino acid variation and thus should be considered for incorporation into a multi-valent vaccine against PRRS.
机译:筛选了跨猪生殖和呼吸道病毒(PRRSV)糖蛋白5(GP5)的96种五肽,它们能够从22头猪中分离出的外周血单核细胞引起召回干扰素-γ反应,该猪感染了多达两种遗传上不同的PRRSV株。两个不同区域(氨基酸残基117-131,LAALICFVIRLAKNC和149-163,KGRLYRWRSPVII / VEK)似乎含有免疫显性T细胞表位,这是因为它们与其他GP5相比,具有刺激产生高于平均水平的干扰素-γ分泌细胞的能力。肽。对PRRSV分离株的调查表明,这两个位点相对保守,最多具有两个氨基酸变异,因此应考虑将其掺入抗PRRS的多价疫苗中。

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