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番茄内质网ω-3脂肪酸去饱和酶基因原核表达载体的构建与鉴定
引用本文:丁一,王华森,于超. 番茄内质网ω-3脂肪酸去饱和酶基因原核表达载体的构建与鉴定[J]. 生物技术通报, 2012, 0(1): 79-82
作者姓名:丁一  王华森  于超
作者单位:浙江农林大学农业与食品科学学院,临安,311300
基金项目:浙江省省基金项目,浙江农林大学启动基金项目
摘    要:通过RT-PCR的方法从番茄叶片克隆到内质网ω-3脂肪酸去饱和酶(LeFAD3)基因的部分编码区,该片段cDNA为309 bp,将其克隆到pET-30a(+)载体中,酶切位点分别是BamH I和Sac I,构建了原核表达载体pET-LeFAD3,并在大肠杆菌BL21中表达融合蛋白,经IPTG诱导蛋白表达,提取蛋白并采用SDS-PAGE和蛋白质免疫印迹法检测目的蛋白的表达情况.酶切鉴定结果表明,LeFAD3基因原核表达载体构建成功,目的蛋白成功表达.

关 键 词:番茄  内质网型ω-3脂肪酸去饱和酶  原核表达载体

Construction and Identification of an Endoplasmic Reticulum-localized Tomato Omega-3 Fatty Acid Desaturase ( LeFAD3 )Gene Prokaryotic Expression Vector
Ding Yi , Wang Huasen , Yu Chao. Construction and Identification of an Endoplasmic Reticulum-localized Tomato Omega-3 Fatty Acid Desaturase ( LeFAD3 )Gene Prokaryotic Expression Vector[J]. Biotechnology Bulletin, 2012, 0(1): 79-82
Authors:Ding Yi    Wang Huasen    Yu Chao
Affiliation:Ding Yi Wang Huasen Yu Chao(Department of Horticulture,School of Agriculture and Food Science,Zhejiang A & F University,Lin’an 311300)
Abstract:The coding region length of LeFAD3 gene about 309 bp nucleotides was isolated by RT-PCR from tomato leaves and was subcloned into the pET-30a(+) vector between the BamHⅠ and SacⅠsites.A recombinant of prokaryotic expression vector pET-LeFAD3 was constructed and transformed into E.coli BL21 and then expressed by inducing with IPTG,transducted into BL21 and the exogenous protein expression was induced by IPTG.The exogenous LeFAD3 expression was examined by SDS-PAGE and Western immunoblotting.Results showed that LeFAD3 gene was successfully constructed,expression of LeFAD3 gene in E.coli could provides the basis for further research on LeFAD3 function.
Keywords:Tomato(Lycopersicon esculentum) Endoplasmic reticulum-localized omega-3 fatty acid desaturase Prokaryotic expression vector
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