Institutional Repository of Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
| Functional analysis of the promoter of the heat shock cognate 70 gene of the Pacific white shrimp, Litopenaeus vannamei | |
Zhao, Cui1,2; Zhang, Xiaojun1; Li, Fuhua1; Huan, Pin1; Xiang, Jianhai1 ; Xiang, JH
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| 2013 | |
| 发表期刊 | FISH & SHELLFISH IMMUNOLOGY
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| ISSN | 1050-4648 |
| 卷号 | 34期号:1页码:397-401 |
| 文章类型 | Article |
| 摘要 | Current knowledge on cis-regulatory elements of immune genes of the Pacific white shrimp (Litopenaeus vannamei) is poor. In this study, we identified the promoter of the heat shock cognate protein 70 (HSC70) gene of L. vannamei (lvhsc70). The promoter activity of lvhsc70 promoter was analyzed in insect sf9 cell lines. First, the putative promoter sequence was proved to be able to drive the expression of reporter EGFP gene successfully. Then serial deletion experiments were conducted to investigate functional transcription elements in the promoter region. The results revealed that both positive and negative transcription elements existed in this region. These results are quite different from the previous report on the promoter of HSC70 gene in Penaeus monodon (pmhsc70), where only positive transcription elements were indicated. The sequences that are not conserved between the promoters of lvhsc70 and pmhsc70 might contribute to the differences. Finally, we tested the effect of a putative "NF-kappa b binding site" in the promoter and, surprisingly, found that deletion of this site would result in a significantly enhancement of the expression of reporter genes, while the underlying mechanisms remain unrevealed. Our results would provide supports for future studies to identify the functional transcription elements in the lvhsc70 promoter and to expand our knowledge on regulation of innate immune genes in penaeid shrimp. (c) 2012 Elsevier Ltd. All rights reserved.; Current knowledge on cis-regulatory elements of immune genes of the Pacific white shrimp (Litopenaeus vannamei) is poor. In this study, we identified the promoter of the heat shock cognate protein 70 (HSC70) gene of L. vannamei (lvhsc70). The promoter activity of lvhsc70 promoter was analyzed in insect sf9 cell lines. First, the putative promoter sequence was proved to be able to drive the expression of reporter EGFP gene successfully. Then serial deletion experiments were conducted to investigate functional transcription elements in the promoter region. The results revealed that both positive and negative transcription elements existed in this region. These results are quite different from the previous report on the promoter of HSC70 gene in Penaeus monodon (pmhsc70), where only positive transcription elements were indicated. The sequences that are not conserved between the promoters of lvhsc70 and pmhsc70 might contribute to the differences. Finally, we tested the effect of a putative "NF-kappa b binding site" in the promoter and, surprisingly, found that deletion of this site would result in a significantly enhancement of the expression of reporter genes, while the underlying mechanisms remain unrevealed. Our results would provide supports for future studies to identify the functional transcription elements in the lvhsc70 promoter and to expand our knowledge on regulation of innate immune genes in penaeid shrimp. (c) 2012 Elsevier Ltd. All rights reserved. |
| 关键词 | Hsc70 Promoter Litopenaeus Vannamei |
| 学科领域 | Fisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences |
| DOI | 10.1016/j.fsi.2012.09.022 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Fisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences |
| WOS类目 | Fisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences |
| WOS记录号 | WOS:000314743600049 |
| WOS关键词 | SPOT SYNDROME VIRUS ; PENAEUS-MONODON ; TRANSCRIPTION FACTORS ; IMMUNE-SYSTEM ; PROTEIN ; EXPRESSION ; ORGANIZATION ; DEGRADATION ; HSC70 ; ALPHA |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/16575 |
| 专题 | 实验海洋生物学重点实验室 |
| 通讯作者 | Xiang, JH |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Zhao, Cui,Zhang, Xiaojun,Li, Fuhua,et al. Functional analysis of the promoter of the heat shock cognate 70 gene of the Pacific white shrimp, Litopenaeus vannamei[J]. FISH & SHELLFISH IMMUNOLOGY,2013,34(1):397-401. |
| APA | Zhao, Cui,Zhang, Xiaojun,Li, Fuhua,Huan, Pin,Xiang, Jianhai,&Xiang, JH.(2013).Functional analysis of the promoter of the heat shock cognate 70 gene of the Pacific white shrimp, Litopenaeus vannamei.FISH & SHELLFISH IMMUNOLOGY,34(1),397-401. |
| MLA | Zhao, Cui,et al."Functional analysis of the promoter of the heat shock cognate 70 gene of the Pacific white shrimp, Litopenaeus vannamei".FISH & SHELLFISH IMMUNOLOGY 34.1(2013):397-401. |
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