Identification and functional characterization of glutaredoxin 5 from the mud crab (Scylla paramamosain) in response to cadmium and bacterial challenge
文献类型： 外文期刊
作者： Cheng, Chang-Hong 1 ; Liu, Guang-Xin 1 ; Deng, Yi-Qin 1 ; Feng, Juan 1 ; Jiang, Jian-Jun 1 ; Guo, Zhi-Xun 1 ;
作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Key Lab South China Sea Fishery Resources Exploita, Minist Agr & Rural Affairs, Guangzhou 510300, Guangdong, Peoples R China
关键词： Grx 5; Oxidative stress; Innate immunity; Detoxification
期刊名称：FISH & SHELLFISH IMMUNOLOGY （ 影响因子：4.622； 五年影响因子：4.799 ）
ISSN： 1050-4648
年卷期： 2022 年 130 卷
页码：
收录情况： SCI
摘要： Glutaredoxin (Grx) is a class molecule oxidoreductase, which plays a key role in maintaining redox homeostasis and regulating cell survival pathways. However, the expression pattern and function of Grx remain unknown in the mud crab (Scylla paramamosain). In the present study, a novel full-length of Grx 5 from the mud crab (designated as Sp-Grx 5) was cloned and characterized. The open reading frame of Sp-Grx 5 was 441 bp, which encoded a putative protein of 146 amino acids. The amino acid sequence of Sp-Grx 5 contained a typical C-G-F-S redox active motif and several GSH binding sites. Sp-Grx 5 widely existed in all tested tissues with a high-level expression in hepatopancreas. Subcellular localization showed that Sp-Grx 5 was located in the cytoplasm and nucleus. The expression of Sp-Grx 5 was significantly up-regulated after Vibrio parahaemolyticus infection and cadmium exposure, suggesting that Sp-Grx 5 was involved in innate immunity and detoxification. Furthermore, overexpression of Sp-Grx 5 could improve cells viability after H2O2 exposure. All these results indicated that SpGrx 5 played important roles in the redox homeostasis and innate immune response in crustaceans.
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