[1]罗伟芝,符春荣,邬玉兰,等.罗氏沼虾原肌球蛋白基因的克隆表达及变应原性鉴定[J].江西师范大学学报(自然科学版),2012,(04):425-430.
 LUO Wei-zhi,FU Chun-rong,WU Yu-lan,et al.The Cloning, Expression and Purification of Tropomyosin from Haliotis Discus and Identification of Its Allergic Activity[J].,2012,(04):425-430.
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罗氏沼虾原肌球蛋白基因的克隆表达及变应原性鉴定()
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《江西师范大学学报》(自然科学版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2012年04期
页码:
425-430
栏目:
出版日期:
2012-08-01

文章信息/Info

Title:
The Cloning, Expression and Purification of Tropomyosin from Haliotis Discus and Identification of Its Allergic Activity
作者:
罗伟芝;符春荣;邬玉兰;陈献雄;刘志刚;黄海珍
深圳大学过敏反应与免疫学研究所, 广东 深圳 518000
Author(s):
LUO Wei-zhi FU Chun-rong WU Yu-lan CHEN Xian-xiong LIU Zhi-gang HUANG Hai-zhen
关键词:
罗氏沼虾原肌球蛋白变应原克隆和表达
Keywords:
macrobrachium rosenbergii allergen tropomyosin cloning and expression
分类号:
Q78
文献标志码:
A
摘要:
通过NCBI查找到罗氏沼虾原肌球蛋白的mRNA,根据其CDS区域设计特异引物,通过反转录聚合酶链反应(RT-PCR)克隆出目的基因片段,测序后将该片段克隆到原核表达载体 pET-28a 上,转化到 E. coli BL21(DE3)和E. coli Rosatta后,经异丙基-B-D-硫代乳糖苷(IPTG)诱导表达,用Ni2+亲和层析柱对重组变应原进行纯化.采用免疫印迹检测其与对虾过敏患者血清的 IgE 结合活性.对罗氏沼虾变应原进行了表达、鉴定及纯化,成功地获得了具有变应原活性的重组罗氏沼虾原肌球蛋白,为罗氏沼虾过敏性疾病的诊断、治疗奠定了基础.
Abstract:
Bioinformatic method was used for the comparative analysis of numerous homologous animal food tropomyosin sequences.Conservative domains among the sequences were determined for degenerate primer de-signing. The RT-PCR was applied to clone the full length allergen genes from Macrobrachium rosenbergii and the sequences were analyzed.The specific primers were designed. The complete coding cDNA sequence including the start and the stop codons of tropomyosin of Macrobrachium rosenbergii was subcloned into the expression vector pET 28a. Expression of the recombinant Macrobrachium rosenbergii tropomyosin was carried out in Escherichia coli BL21 (DE3) and the purification of the recombin ant protein was performed viaaffinity chromatography with Ni2 + coupled to sepharose. Protein from E.coli lysate and purified recombinant tropomyosin were analyzed by SDS-PAGE. IgE reactivity of recombinant Macrobrachium rosenbergii tropomyosin was investigated by Western-blotting. The recombinant Macrobrachium rosenbergii tropomyosin with good allergenicity in this study was obtained, which would be used as a base for further study on Macrobrachium rosenbergii related allergy.

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更新日期/Last Update: 1900-01-01