草鱼jam-a基因的克隆及表达分析

该研究从草鱼(Ctenopharyngodon idellus)中克隆到3个jam-a(gcjam-a1,gcjam-a2,gcjam-a3)c DNA序列,并采用qRT-PCR分析其在健康草鱼9种组织中的表达模式以及受草鱼呼肠孤病毒(GCRV-GD108)感染后在草鱼6种组织中的表达变化。结果表明,克隆到的gcjam-a 3个分子编码294~295个氨基酸,均具有2个免疫球蛋白Ig结构域,包含典型的受体结合的D1结构域及与细胞膜结合的D2结构域。3个gcjam-a的D2结构域序列完全一致,而D1结构域序列则稍有差别。在健康草鱼9个组织中,gcjam-a1主要在血和脑中有较高表达,gcjam-...

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Published in南方水产科学 Vol. 13; no. 6; pp. 30 - 40
Main Author 田园园;焦真真;董浚键;孙成飞;马冬梅;叶星
Format Journal Article
LanguageChinese
Published 中国水产科学研究院珠江水产研究所,农业部热带亚热带水产资源利用与养殖重点实验室,广东广州,510380 2017
上海海洋大学水产与生命技术学院,上海201306%中国水产科学研究院珠江水产研究所,农业部热带亚热带水产资源利用与养殖重点实验室,广东广州,510380
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ISSN2095-0780
DOI10.3969/j.issn.2095-0780.2017.06.004

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Summary:该研究从草鱼(Ctenopharyngodon idellus)中克隆到3个jam-a(gcjam-a1,gcjam-a2,gcjam-a3)c DNA序列,并采用qRT-PCR分析其在健康草鱼9种组织中的表达模式以及受草鱼呼肠孤病毒(GCRV-GD108)感染后在草鱼6种组织中的表达变化。结果表明,克隆到的gcjam-a 3个分子编码294~295个氨基酸,均具有2个免疫球蛋白Ig结构域,包含典型的受体结合的D1结构域及与细胞膜结合的D2结构域。3个gcjam-a的D2结构域序列完全一致,而D1结构域序列则稍有差别。在健康草鱼9个组织中,gcjam-a1主要在血和脑中有较高表达,gcjam-a2主要在鳃中有较高表达,而在各个组织未检测到gcjam-a3表达。病毒感染后草鱼6种组织中,gcjam-a1、gcjam-a2、gcjam-a3在鳃中均出现显著上调表达,而在肝脏、脾脏、肠、肾、脑中只有gcjam-a1有不同程度诱导表达上调。该研究表明在健康草鱼组织中,3个gcjam-a中以gcjam-a1的表达量最高,且在受病毒感染后所检测的6种组织中均出现表达上调,推测其可能为GCRV-GD108的主要受体。
Bibliography:TIAN Yuanyuan1,2, JIAO Zhenzhen1,2, DONG Junjian1 , SUN Chengfei1 , MA Dongmei1 , YE Xing1 (1. Key Lab. of Tropical & Subtropical Fisheries Resource Application & Cultivation, Ministry of Agriculture; Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510380, China; 2. College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China)
Ctenopharyngodon idellus ; jam-a ; qRT-PCR; GCRV ; virus receptor
44-1683/S
We cloned three grass carp ( Ctenopharyngodon idellus ) gcjam-a genes (gcjam-al, gcjam-a2 and gcjam-a3 ) and used qRT-PCR to analyze their expression pattern in nine tissues of grass carp, as well as their expression after grass carp reovirus-GD108 strain infection. The three gcjam-a genes had 294 - 295 amino acids and two immunoglobulin Ig domains, including typical receptor binding domain D1 and transmembrane domain D2. The D2 domains of gcjam-a genes were identical while D1 domains were slightly different. In nine tissues of healthy grass carps
ISSN:2095-0780
DOI:10.3969/j.issn.2095-0780.2017.06.004