详细信息
轮状病毒P[6]基因型毒株LL4260株的VP8*核心区蛋白的表达和纯化
The expression and purification of VP8 * core protein of the rotavirus P 16 * Genotype LL4260
文献类型:期刊文献
中文题名:轮状病毒P[6]基因型毒株LL4260株的VP8*核心区蛋白的表达和纯化
英文题名:The expression and purification of VP8 * core protein of the rotavirus P 16 * Genotype LL4260
作者:王璐瑶[1];李丹地[2];孙晓曼[2];章青[2];王宏[2];庞立丽[2];胡继宏[1];段招军[2]
第一作者:王璐瑶
机构:[1]甘肃中医药大学公共卫生学院,兰州730000;[2]中国疾病预防控制中心病毒病预防控制所,北京102206
第一机构:甘肃中医药大学公共卫生学院
年份:2018
卷号:32
期号:2
起止页码:195
中文期刊名:中华实验和临床病毒学杂志
外文期刊名:Chinese Journal of Experimental and Clinical Virology
收录:CSTPCD;;Scopus;CSCD:【CSCD2017_2018】;
基金:国家自然科学基金(81601813,81472003,31500139)
语种:中文
中文关键词:轮状病毒;P[6]基因型;VP8*蛋白;蛋白表达与纯化
外文关键词:Rotavirus ; P[ 6 ] genotype ; VP8 * core protein ; Protein expression and purification
摘要:目的为研究P[6]基因型轮状病毒受体结合特性,利用原核表达纯化得到P[6]基因型轮状病毒LL4260毒株的VP8*核心区蛋白。方法将P[6]基因型毒株LL4 260株的质粒利用PCR扩增得到核心区基因片段,克隆到pET30a载体中构建重组质粒pET30a-LL4260VP8*core,重组质粒转化到BL21(DE3)感受态细胞中进行蛋白表达,经亲和层析和分子筛层析纯化表达后得到目的蛋白。结果P[6]基因型轮状病毒LL4260毒株核心区pET30 a-LL4260VP8*core蛋白为可溶表达,经纯化及电泳鉴定,得到相对分子质量为22×103的目的蛋白。结论本研究构建的P[6]基因型轮状病毒LL4260毒株pET30 a-LL4260VP8*core重组质粒,表达纯化了相应核心区目的蛋白,为进一步分析蛋白的性能和结构提供基础。
Objective The VP8* core protein of rotavirus P[6 ] genotype LIA260 was purified by prokaryotic expression, which is important for further study of protein structure and function. Methods The P[6] genotype LL4260 strain was obtained by PCR. The recombinant plasmid pET30 a-LIA260VP8 * core was inserted into pET30 a vector and transformed into BL21 (DE3) competent cells with the correct recombinant plasmid. The expressed protein is purified by affinity chromatography and molecular sieve chromatography. Results The pET30 a-LL4260VP8 * core region protein is soluble in the supernatant and proteins of approximately 22 kDa are identified by eleetrophoresis using purified proteins. Conclusions In this study, LL4260 containing pET30 a-LIA260VP8 * core plasmid was successfully constructed and LIA260 strain VP8 * protein was expressed.
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