详细信息
红笛鲷LITAF基因的克隆与表达分析 被引量:1
Molecular cloning and expression analysis of LITAF in Lutjanus sanguineus
文献类型:期刊文献
中文题名:红笛鲷LITAF基因的克隆与表达分析
英文题名:Molecular cloning and expression analysis of LITAF in Lutjanus sanguineus
作者:郑琦[1];蔡佳[1,2,3];汤菊芬[1,2,3];鲁义善[1,2,3];吴灶和[2,3];简纪常[1,2,3]
机构:[1]广东海洋大学水产学院,广东湛江524088;[2]广东省水产经济动物病原生物学及流行病学重点实验室,广东湛江524088;[3]广东省水产经济动物病害控制重点实验室,广东湛江524088
年份:2016
卷号:25
期号:1
起止页码:18
中文期刊名:上海海洋大学学报
外文期刊名:Journal of Shanghai Ocean University
收录:CSTPCD、、北大核心2014、北大核心、CSCD_E2015_2016、CSCD
基金:国家自然科学基金(31402335;41406172);广东省科技厅国际合作项目(2012B050600029);广东高校国际合作创新平台项目(2013gjhz0008);广东海洋大学创新强校工程(GDOU2013050231)
语种:中文
中文关键词:红笛鲷;LITAF基因;克隆;表达分析
外文关键词:Lutjanus sanguineus; LITAF; cloning; expression analysis
中文摘要:通过同源克隆和RACE PCR技术从红笛鲷脾脏中鉴定得到了脂多糖诱导的肿瘤坏死因子(LITAF)基因,命名为Ls-LITAF。该基因c DNA全长815 bp,开放阅读框为447 bp,编码148个氨基酸,理论分子量为15.7 ku。序列分析显示Ls-LITAF蛋白具有保守的LITAF结构域,其中包含一个CXXC基序与一个(H)x Cxx C基序。Ls-LITAF蛋白与其他鱼类LITAF蛋白相似度较高,在系统进化树中也与其他鱼类该蛋白聚为一支。Ls-LITAF基因在健康鱼体多种组织均有表达,其中鳃、脾脏、皮肤与头肾的表达量较高;且哈氏弧菌刺激鱼体后,Ls-LITAF在脾脏和头肾中的表达量显著上调。以上研究结果为进一步了解Ls-LITAF在红笛鲷免疫反应中的作用提供了参考。
外文摘要:The lipopolysaccharide-induced TNF-α factor( LITAF) gene was identified from humphead snapper( Lutjanus sanguineus) spleen using homologous cloning and RACE PCR,designated as Ls-LITAF.The full length c DNA of Ls-LITAF was 815 bp,contained an ORF of 447 bp encoding a polypeptide of 148 amino acids with predicted molecular mass of 15. 7 ku. Sequence alignment showed that Ls-LITAF possessed a typical LITAF domain with a CXXC and( H) x Cxx C motif,shared high similarities with other fish LITAF proteins. Phylogenetic analysis indicated that Ls-LITAF clustered closely with known fish LITAFs. Ls-LITAF was distributed in all analyzed tissues with higher expressions in gill,spleen,skin and head kidney. After Vibrio harveyi infection,the expression levels of Ls-LITAF were up-regulated significantly in spleen and head kidney. These results provided a reference to further investigate the roles of Ls-LITAF in immune response of Lutjanus sanguineus.
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