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	Molecular cloning and characterization of a cDNA encoding extracellular signal-regulated kinase from Litopenaeus vannamei
	Shi, Hong ; Yan, Xinfu ; Xu, Xun ; Xu X(徐洵) ; Ruan, Lingwei
	2012-10
关键词	ERK Litopenaeus vannamei WSSV Inhibitor Gene silencing
英文摘要	Extracellular signal-regulated kinase (ERR) is a serine/threonine-specific kinase, which is activated by downstream signaling molecules of cellular activation, cytokine and chemokine stimulation and various other stimuli. Here we cloned an ERK gene from Litopenaeus vannamei and designated it as lverk. The lverk cDNA contained an open reading frame of 1098 bp encoding 365 amino acids. LVERK had a conserved TEY motif and serine/threonine protein kinase (S_TKc) domain, and close phylogenetic relationship to Penaeus monodon and Marsupenaeus japonicus ERR. Immunofluorescence staining analysis showed that following serum stimulation LVERK was located in cytoplasm and nucleus, but phospho-LVERK was prominently in nucleus, suggesting conserved ERR signaling module occurred in shrimp cells. Then during the white spot syndrome virus (WSSV) infection, LVERK and phospho-LVERK increased at the early stage of infection. Once silencing of lverk in vivo, the replication of WSSV was obviously inhibited. Moreover, treatment of mitogen-activated protein kinase kinase inhibitor in vitro could result in reduction of WSSV proliferation and delay of viral early gene transcription. Our results indicated a role of LVERK involved in WSSV infection. Understanding how WSSV influences ERR signaling pathway to dismantle an effective immune response may lead to insight into pathogenic progression and possible disease control. (C) 2012 Elsevier Ltd. All rights reserved.; NSFC/HK-RGC Joint Research Scheme [N_HKUST609/09]; NSFC [20931160426]
语种	英语
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
内容类型	期刊论文
源URL	[http://dx.doi.org/10.1016/j.fsi.2012.07.008]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	Shi, Hong,Yan, Xinfu,Xu, Xun,et al. Molecular cloning and characterization of a cDNA encoding extracellular signal-regulated kinase from Litopenaeus vannamei[J],2012.
APA	Shi, Hong,Yan, Xinfu,Xu, Xun,徐洵,&Ruan, Lingwei.(2012).Molecular cloning and characterization of a cDNA encoding extracellular signal-regulated kinase from Litopenaeus vannamei..
MLA	Shi, Hong,et al."Molecular cloning and characterization of a cDNA encoding extracellular signal-regulated kinase from Litopenaeus vannamei".(2012).

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