多元CS阵及子块定理

给出了一元及多元覆盖系ＣＳ（Ｃｏｖｅｒｉｎｇ Ｓｙｓｔｅｍｓ）的概念及性质,定义了ｋ模ｎ元ＣＳ阵,并证明了子块定理。     

抗人红细胞单链抗体基因的构建及表达

从分泌抗人红细胞单克隆抗体的杂交瘤细胞３Ｆ５中提取总ＲＮＡ,逆转录成ｃＤＮＡ,用合成的寡核苷酸引物通过ＰＣＲ扩增和克隆单抗的轻、重链可变区基因,用双脱氧核苷酸链终止法分析核苷酸序列,采用ＰＣＲ拼接法构建单链抗体基因,并插入原核表达载体ＰＥｔ－２８ａ,转化大砀杆菌ＢＬ２１（ＤＥ３）,经ＩＰＴＧ诱导后表达,序 分析表明所克隆的ＶＬ、ＶＨ分别属于鼠ＩｇＫａｐｐａ轻链ＩＶ亚组和Ｉｇ重链Ⅱ亚组,ＶＨ、ＶＬ基     

Two-dimensional gel electrophoresis analysis of the proteomes expressed in the human hepatoma cell line BEL-7404 and normal liver cell line L-02

Proteome analysis technology has been used extensively in conducting discovery research of biology and has become one of the most essential technologies in functional genomics. The proteomes of the human hepatoma cell line BEL-7404 and the normal human liver cell line L-02 have been separated by high resolution two-dimensional gel electrophoresis (2-DE) with immobilized pH gradient isoelectric focusing (IPG-IEF) in the first dimension and sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) in the second dimension (IPG-DALT). The resulting images have been analyzed using 2-D analysis software. Quantitative analysis reveals that 7 protein spots are detected only in hepatoma BEL-7404 cells, 14 only in L-02 cells, and 78 protein spots show significant fluctuation in quantity in both cell lines (P< 0.01). These protein spots have been displayed on a proteome differential expression map. Analysis for the reproducibility of 2-DE indicates that the positional variability in the IEF dimension is 0.73 mm, while the variability in the SDS-PAGE dimension is 0.44 mm, and the quantitative variability is 17.6%–19.2%. These results suggest that the reproducibility of 2-DE has been suitable for the study of differential expression of proteomes. Proteome differential expression maps can be useful tools for disease diagnosis, drug-target validation analysis and biological process elucidation.     

原核表达载体pHsaE1αβ的构建和人丙酮酸脱氢酶的表达与纯化

以质粒pQE9为原型载体, 将编码hPDH的α和β亚基的cDNA串联克隆到该载体上, 成功地构建了hPDH基因的表达载体pHsaE1αβ. 并在大肠杆菌中表达了hPDH, 通过 亲和层析法进行纯化, 对一些生物化学性质进行表征.     

NF-κB相互作用多肽原核表达载体的构建、表达与纯化

为了获得高纯度的可溶性NF-κB相互作用多肽,首先以酵母双杂交技术筛选获得的NF-κB相互作用多肽的酵母表达质粒pGAD GH/pp10为模板,扩增多肽基因片段,后经BglⅡ,StuⅠ双酶切后连接到pET-42a(+)载体中,构建GST/多肽融合蛋白的原核表达载体,并将GST/多肽融合蛋白的原核表达载体转化入BL-21菌株,用0.4 mmol/L IPTG于30 ℃诱导表达4 h,后经GST亲和纯化GST/多肽融合蛋白,SDS-PAGE电泳鉴定融合蛋白的表达和纯度.实验结果表明,成功地构建了NF-κB相互作用多肽的GST/多肽融合蛋白原核表达载体,进行了GST/多肽融合蛋白的诱导表达,融合蛋白的表达为可溶性表达,最终纯化获得纯度约为80%的可溶性GST/多肽融合蛋白,这将为后继利用GST pull-down,Bio-sensor,EMSA等实验进一步验证NF-κB相互作用多肽的功能提供可靠的材料来源奠定基础.     

李方程组的显式精确行波解

利用扩展的双曲函数方法,构造了李方程组的显式精确行波解,其中包括双曲函数形式、三角函数形式和有理函数形式的显式精确行波解.