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河南良杂猪白细胞介素-18成熟蛋白基因的克隆及表达载体的构建
引用本文:郑兰兰,崔保安,贾云飞,陈瑞亮,陈红英,吕晓丽.河南良杂猪白细胞介素-18成熟蛋白基因的克隆及表达载体的构建[J].河南农业大学学报,2007,41(2):200-203.
作者姓名:郑兰兰  崔保安  贾云飞  陈瑞亮  陈红英  吕晓丽
作者单位:河南农业大学牧医工程学院,河南,郑州,450002
基金项目:国家食品安全重大攻关专项项目
摘    要:采集6月龄河南良杂猪的脾脏,分离淋巴细胞后直接提取总RNA,进行反转录-聚合酶链反应(RT-PCR)扩增,扩增产物进行T-A克隆、测序,获得了河南良杂猪IL-18基因成熟蛋白序列.序列测定表明,pIL-18成熟蛋白基因核苷酸长度为474 bp,编码157个氨基酸.将该基因片段克隆到大肠杆菌表达载体pQE30,构建重组质粒pQE-IL18,所获重组质粒经过酶切、测序鉴定,证实含有目的片段,且连接、构建正确.

关 键 词:猪IL-18基因  克隆  成熟蛋白  表达载体
文章编号:1000-2340(2007)02-0200-04
收稿时间:2006-10-12
修稿时间:2006-10-12

Mature Protein Cloning and Expressist Vector Constructing of Porcine lnterleukin-18
ZHENG Lan-lan,CUI Bao-an,JIA Yun-fei,CHEN Rui-liang,CHEN Hong-ying,L Xiao-li.Mature Protein Cloning and Expressist Vector Constructing of Porcine lnterleukin-18[J].Journal of Henan Agricultural University,2007,41(2):200-203.
Authors:ZHENG Lan-lan  CUI Bao-an  JIA Yun-fei  CHEN Rui-liang  CHEN Hong-ying  L Xiao-li
Affiliation:The Engineering College of Animal Husbandry and Veterinary Science, Henan Agricultural University, Zhengzhou 450002, China
Abstract:Porcine mature protein IL-18 gene was amplified by RT-PCR from porcine splenocyte total RNA extracts and then was cloned and sequenced.The result suggested that the sequence of porcine pIL-18 gene consisted of 474 bp,which encodes 157 amino acids.Then,mature protein gene was subcloned into the prokaryotic expressing plasmid vector pQE30 to construct and recombine the pQE-IL18 plasmid.The obtained recombinant plasmid was proved to contain the desired fragments,and be joined and constructed correctly by digestion and sequence identification.
Keywords:porcine interleukin-18  cloning  mature protein  expressist vector
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