Identification of a C-type lectin from tilapia (Oreochromis niloticus) and its functional characterization under low-temperature stress

文献类型： 外文期刊

第一作者： Yang, ChangGeng

作者： Yang, ChangGeng;Jiang, Ming;Wu, Fan;Yu, Lijuan;Tian, Juan;Liu, Wei;Lu, Xing;Wen, Hua

作者机构：

关键词： Oreochromis niloticus; Lectin; Functional characterization; Low-temperature stress

期刊名称：FISH & SHELLFISH IMMUNOLOGY （ 影响因子：4.581； 五年影响因子：4.851 ）

ISSN： 1050-4648

年卷期： 2016 年 58 卷

页码：

收录情况： SCI

摘要： C-type lectin, which plays an important role in fish innate immunity, was cloned from tilapia and its functional characterization under low-temperature stress is reported. Its ORF is 453 bp, encoding 150 amino acids, and has a 5'UTR of 83 bp, a 3'UTR of 559 bp, and a poly (A) tail. The tilapia C-type lectin genomic DNA was acquired with a length of 5714 bp, containing six exons and five introns. Its promoter sequence was cloned and has a length of 2251 bp. The highest promoter activity occurs in the regulatory region (-900 bp to -450 bp). A hemagglutination assay of recombinant tilapia C-type lectin protein showed positive hemagglutination of rabbit and tilapia erythrocytes. RT-qPCR and western blot assays showed that its expression in the liver, spleen, and intestine were clearly affected by low-temperature stress. Thus, tilapia C-type lectin appear to be affected by abiotic stress, as well as by biological stress. (C) 2016 Published by Elsevier Ltd.

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