期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
西农萨能奶山羊脂肪酸合酶基因启动子的克隆及活性测定 被引量:16
1
作者 张晓 罗军 +2 位作者 李建华 赵旺生 王伟 《中国农业科学》 CAS CSCD 北大核心 2010年第3期640-647,共8页
【目的】克隆测定西农萨能奶山羊脂肪酸合酶基因(fatty acid synthase,FAS)启动子的全长序列,进行活性区域分析,为奶山羊FAS基因功能和表达调控机理研究提供依据。【方法】根据牛和人脂肪酸合酶基因启动子的同源序列以及西农萨能奶山羊... 【目的】克隆测定西农萨能奶山羊脂肪酸合酶基因(fatty acid synthase,FAS)启动子的全长序列,进行活性区域分析,为奶山羊FAS基因功能和表达调控机理研究提供依据。【方法】根据牛和人脂肪酸合酶基因启动子的同源序列以及西农萨能奶山羊脂肪酸合酶基因5′UTR区域,分别设计上、下游引物,以西农萨能奶山羊全血DNA为模板克隆启动子序列。依据生物信息学分析结果重设引物,将FAS启动子基因分段克隆并连接到荧光素酶表达载体PGL-3,与Psv-β-半乳糖苷酶对照载体共转染293、MCF-7细胞,进行荧光素酶活性检测和β-半乳糖苷酶的活性检测。【结果】FAS基因启动子序列全长2640bp,与牛、人FAS启动子序列同源性90%以上,包括数个潜在SP1、Ets、LSF等转录因子结合位点和CCAAT框、GC框。-1040—-340bp处可能包含启动子活性中心,通过启动子缺失片段试验将活性中心范围缩小至-721—-540bp之间。【结论】通过克隆FAS基因启动子区域,分析表明启动子前端存在负调控元件,找出了启动子最小活性中心。 展开更多
关键词 西农萨能奶山羊 fas启动子 基因克隆 活性测定
下载PDF
APO-1/FAS Promoter (-670A/G) Polymorphisms and Risk of Lupus Nephritis in SLE Egyptian Female Patients
2
作者 Eman A. E. Badr Ghada E. Hamoda +1 位作者 Heba A. Esaily Mohamed A. Korany 《Open Journal of Genetics》 2015年第2期83-91,共9页
Background: Self-immunization in systemic lupus is driven by defective in apoptosis. Fas, is an apoptosis-promoting cell surface receptor. The present study evaluate the possible association between APO-1/FAS Promoter... Background: Self-immunization in systemic lupus is driven by defective in apoptosis. Fas, is an apoptosis-promoting cell surface receptor. The present study evaluate the possible association between APO-1/FAS Promoter (-670A/G) Polymorphism and sFAS level with susceptibility to lupus nephritis in SLE patients. Design and Methods: This study was performed on 88 female patients with SLE (mean age, 39.82 ± 10.16 years). 82 patients with lupus nephritis (mean age, 42.50 ± 6.65 years). 150 age and sex-matched person served as controls. All participants were genotyped for the APO-1/FAS Promoter (-670A/G) Polymorphism, manifestations and serum sFAS were correlated with the genotypes. Results: Serum sFAS was significantly higher in patients with -670 AA genotype compared to others. (-670A/G) AA genotype frequencies were significantly higher in the lupus nephritis and SLE patients groups compared with the controls and were associated with increased risk for lupus nephritis and SLE development (odds ratio, 4.08 and 1.91 respectively). Conclusions: The APO-1/FAS Promoter (-670A/G) A allele can be used as a genetic marker for lupus nephritis susceptibility in SLE and was associated with high sFAS level. 展开更多
关键词 Sfas -APO-1/fas promoter (-670A/G) POLYMORPHISMS LUPUS NEPHRITIS
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部