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Two short peptidoglycan recognition proteins from Crassostrea gigas with similar structure exhibited different PAMP binding activity
Yang, Chuanyan1; Wang, Lingling1,2; Jia, Zhihao3; Yi, Qilin1; Xu, Qingsong1; Wang, Weilin3; Gong, Changhao1; Liu, Conghui3; Song, Linsheng1,2,4
2017-05-01
发表期刊DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY
卷号70页码:9-18
文章类型Article
摘要Peptidoglycan recognition protein (PGRP) is an essential molecule in innate immunity for both invertebrates and vertebrates, owing to its prominent ability in specifically recognizing bacterial peptidoglycan (PGN) and eliminating the invading bacteria. In the present study, the full length cDNA of two PGRP genes, CgPGRPS2 and CgPGRPS4, were cloned from oyster Crassostrea gigas. Their amino acid sequences both contained one signal peptide, one typical PGRP/amidase domain with conserved catalytic residues responsible for amidase activity (55H, 90Y, 164H, 172C in CgPGRPS2, and 98H, 133Y, 207H, 215C in CgPGRPS4), and specific PGN recognition (84R, 85W, 104R, 109V in CgPGRPS2, and 127G, 128W, 147R, 152V in CgPGRPS4), and they shared 55.9% sequente similarity. The mRNA transcripts of CgPGRPS2 and CgPGRPS4 were constitutively expressed in all the examined tissues, including haemocytes, hepatopancreas, mantle, gonad, heart, adductor muscle and gill, with the highest expression level in adductor muscle and hepatopancreas, respectively. Both CgPGRPS2 and CgPGRPS4 proteins were mainly localized in the cytoplasma. The recombinant protein of CgPGRPS2 (rCgPGRPS2) could bind lipopolysaccharide (LPS), PGN and mannan (Man), as well as various microorganisms including Gram-negative bacteria Escherichia coli, Vibrio anguillarum, Gram-positive bacteria Staphylococcus aureus and fungi Yarrowia lipolytica. The recombinant protein of CgPGRPS4 (rCgPGRPS4) exhibited higher binding affinity to PGN, lower binding affinity to LPS, while no binding activity to Man and Y. lipolytica. The results indicated that CgPGRPS2 and CgPGRPS4 could function as pattern recognition receptors (PRR) in the innate immune response of oyster, and they exhibited a certain degree of functional differentiation in recognition of Man. (C) 2016 Elsevier Ltd. All rights reserved.
关键词Crassostrea Gigas Pgrp Innate Immunity Pattern Recognition Receptor Pamp Binding Activity
DOI10.1016/j.dci.2016.12.009
收录类别SCI
语种英语
WOS记录号WOS:000394635500002
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
版本出版稿
条目标识符http://ir.qdio.ac.cn/handle/337002/136799
专题实验海洋生物学重点实验室
作者单位1.Dalian Ocean Univ, Liaoning Key Lab Marine Anim Immunol & Dis Contro, Dalian 116023, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266200, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
4.Dalian Ocean Univ, 52 Heishijiao St, Dalian 116023, Peoples R China
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Yang, Chuanyan,Wang, Lingling,Jia, Zhihao,et al. Two short peptidoglycan recognition proteins from Crassostrea gigas with similar structure exhibited different PAMP binding activity[J]. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY,2017,70:9-18.
APA Yang, Chuanyan.,Wang, Lingling.,Jia, Zhihao.,Yi, Qilin.,Xu, Qingsong.,...&Song, Linsheng.(2017).Two short peptidoglycan recognition proteins from Crassostrea gigas with similar structure exhibited different PAMP binding activity.DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY,70,9-18.
MLA Yang, Chuanyan,et al."Two short peptidoglycan recognition proteins from Crassostrea gigas with similar structure exhibited different PAMP binding activity".DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 70(2017):9-18.
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