本文从哥伦比亚生态型的拟南芥(Arabidopsis thaliana Columbia 0)中克隆了谷胱甘肽过氧化物酶AtGPX3的完整编码序列(Coding sequence,CDS)以及部分片段的CDS序列,构建了该基因的不同区域的表达载体,在Transetta(DE3)的BL21大肠杆菌中表...本文从哥伦比亚生态型的拟南芥(Arabidopsis thaliana Columbia 0)中克隆了谷胱甘肽过氧化物酶AtGPX3的完整编码序列(Coding sequence,CDS)以及部分片段的CDS序列,构建了该基因的不同区域的表达载体,在Transetta(DE3)的BL21大肠杆菌中表达,并成功纯化了GPX3膜蛋白,不仅为后续实验研究GPX3的结构与功能提供了材料,而且为研究膜蛋白表达与纯化的方法提供了借鉴.展开更多
从哥伦比亚生态型拟南芥(Arabidopsis thaliana Columbia 0)中克隆SnRK2.6[SNF1(sucrose non-fermenting-1)-related protein kinase 2.6]的完整编码序列(coding sequence,CDS),构建该基因的原核表达载体,将其转化BL21(DE3),经表达纯化...从哥伦比亚生态型拟南芥(Arabidopsis thaliana Columbia 0)中克隆SnRK2.6[SNF1(sucrose non-fermenting-1)-related protein kinase 2.6]的完整编码序列(coding sequence,CDS),构建该基因的原核表达载体,将其转化BL21(DE3),经表达纯化得到SnRK2.6蛋白。激酶活性分析发现,原核表达纯化的SnRK2.6有自磷酸化和磷酸化MBP(myelin basin protein)的活性,为后续试验分析SnRK2.6的功能奠定基础。展开更多
In order to investigate the mechanism of ROS signaling transduction in after-germination process, we screened a hydrogen peroxide sensitive mutant from EMS mutant library of Arabidopsis thaliana. Hydrogen peroxide sen...In order to investigate the mechanism of ROS signaling transduction in after-germination process, we screened a hydrogen peroxide sensitive mutant from EMS mutant library of Arabidopsis thaliana. Hydrogen peroxide sensitive 12(hps12)was screened from this library. Phenotype analysis indicated that hps12 had dwarf plant and shorter pod than wild type(WT). The cotyledon greening rate of hps12 was decreased after being treated with 4 mmol/L H_2O_2. Furthermore, the isolated leaves of hps12 mutants showed more obvious symptoms of senescence than WT under the treatment of 10 mmol/L H_2O_2. Genetic analysis suggested that hps12 was a monogenic recessive mutant.展开更多
文摘本文从哥伦比亚生态型的拟南芥(Arabidopsis thaliana Columbia 0)中克隆了谷胱甘肽过氧化物酶AtGPX3的完整编码序列(Coding sequence,CDS)以及部分片段的CDS序列,构建了该基因的不同区域的表达载体,在Transetta(DE3)的BL21大肠杆菌中表达,并成功纯化了GPX3膜蛋白,不仅为后续实验研究GPX3的结构与功能提供了材料,而且为研究膜蛋白表达与纯化的方法提供了借鉴.
基金Supported by National Natural Science Foundation of China(31170253)Key Scientific Research Foundation of the Higher Education Institutions of Henan Province,China(15A180001)~~
文摘In order to investigate the mechanism of ROS signaling transduction in after-germination process, we screened a hydrogen peroxide sensitive mutant from EMS mutant library of Arabidopsis thaliana. Hydrogen peroxide sensitive 12(hps12)was screened from this library. Phenotype analysis indicated that hps12 had dwarf plant and shorter pod than wild type(WT). The cotyledon greening rate of hps12 was decreased after being treated with 4 mmol/L H_2O_2. Furthermore, the isolated leaves of hps12 mutants showed more obvious symptoms of senescence than WT under the treatment of 10 mmol/L H_2O_2. Genetic analysis suggested that hps12 was a monogenic recessive mutant.