Microsomal glutathione transferase 1 attenuated ROS-induced lipid peroxidation in Apostichopus japonicus

被引:17
作者
Zhang, Zhen [1 ]
Lv, Zhimeng [1 ]
Shao, Yina [1 ]
Qiu, Qiongfen [1 ]
Zhang, Weiwei [1 ]
Duan, Xuemei [1 ]
Li, Ye [1 ]
Li, Chenghua [1 ]
机构
[1] Ningbo Univ, Sch Marine Sci, Ningbo 315211, Zhejiang, Peoples R China
基金
中国国家自然科学基金;
关键词
Apostichopus japonicus; Microsomal glutathione S-Transferase; Gene expression; Immune response; MDA; S-TRANSFERASE; OXIDATIVE STRESS; PROTECTION; BINDING; DETOXIFICATION; CLONING; GENES; SITES;
D O I
10.1016/j.dci.2017.03.011
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Microsomal glutathione transferase (mGST) is a membrane bound glutathione transferase in multifunctional detoxification isoenzymes family and also plays crucial roles in innate immunity. In the present study, a novel microsomal GST homology was identified from Apostichopus japonicus (designated as AjmGST1) by RACE approaches. The full-length cDNA of AjmGST1 was of 1296 bp encoded a protein of 169 amino acids residues. Multiple sequence alignment and phylogenetic analysis together supported that AjmGST1 belonged to a new member in invertebrates mGST family. Spatial expression analysis revealed that AjmGSTl was ubiquitously expressed in all examined tissues with the larger magnitude in tentacle. Time-course expression of AjmGST1 mRNA in coelomocytes was up-regulated after Vibrio splendidus challenge from 6 h until 72 h with the peak expression in 24 h, compared with that in the control group. Similarly, the induced expression of AjmGSTI expression was also detected in lipopolysaccharide (LPS) exposed primary coelomocytes. The purified recombinant protein of AjmGST1 showed high activity with GST substrate at pH of 7.0 and temperature of 35 degrees C. Meantime, the recombinant AjmGST1 depressed H2O2-induced MDA production both in vivo and in vitro. All of these results indicated that AjmGST1 was an important regulator in elimination of lipid peroxidation under immune response. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:79 / 87
页数:9
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