Swierkosz E M, Erdman D D, Bonnot T, Schneiderheinze C, Waner J L
Department of Pediatrics, St. Louis University School of Medicine, MO 63104, USA.
J Clin Microbiol. 1995 Jul;33(7):1839-41. doi: 10.1128/jcm.33.7.1839-1841.1995.
A parainfluenza 3 virus variant which failed to react with parainfluenza 3 virus-specific monoclonal anti-bodies from two commercial sources was isolated from a 14-month-old boy. Analysis of the coding region of the hemagglutinin-neuraminidase gene identified 36 nucleotide changes and 4 amino acid changes compared with a consensus sequence derived from strains isolated from 1957 through 1983. Two unique amino acid changes occurred at positions 174 and 283, which are close to identified epitopes in the hemagglutinin-neuraminidase protein. Ongoing viral surveillance to detect variants is important, particularly in regard to vaccine development.
从一名14个月大的男孩体内分离出一种副流感3病毒变体,该变体与来自两个商业来源的副流感3病毒特异性单克隆抗体不发生反应。与1957年至1983年分离出的毒株的共有序列相比,对血凝素神经氨酸酶基因编码区的分析确定了36个核苷酸变化和4个氨基酸变化。在174和283位发生了两个独特的氨基酸变化,这两个位置靠近血凝素神经氨酸酶蛋白中已确定的表位。持续进行病毒监测以检测变体很重要,特别是对于疫苗研发而言。