Objective:To investigate the effects of polysacharide MD 1 on eliminating free radical O -· 2,·OH and anti peroxidation on human erythrocyte membrane. Methods:testing the effect of eliminating O -· 2?&#...Objective:To investigate the effects of polysacharide MD 1 on eliminating free radical O -· 2,·OH and anti peroxidation on human erythrocyte membrane. Methods:testing the effect of eliminating O -· 2?·OH of MD 1 at different concentrations in vitro;testing the influence of MD 1 on peroxidation of free radical of human erythrocyte membrane by fluorescence. Results:Polyssacharide MD 1 could eliminate O -· 2 and·OH(<250 mg/L).compared with the control group( P <0.01). The result also showed that MD 1 could inhibit lipid peroxidation of human erythrocyte membrane,compared with the control group( P <0.01).展开更多
以‘嘎拉’苹果为材料,克隆了6–磷酸葡萄糖酸脱氢酶基因Md6PGDH1(序列号:MDP0000279299)全长。序列分析显示,该基因包含一个长为1 047 bp完整的开放阅读框,编码347个氨基酸,分子量为36.430 k D,预测等电点为9.24。同源性分析表明Md6PG...以‘嘎拉’苹果为材料,克隆了6–磷酸葡萄糖酸脱氢酶基因Md6PGDH1(序列号:MDP0000279299)全长。序列分析显示,该基因包含一个长为1 047 bp完整的开放阅读框,编码347个氨基酸,分子量为36.430 k D,预测等电点为9.24。同源性分析表明Md6PGDH1还有另外3个同源基因;功能域分析表明Md6PGDH蛋白含有两个保守的绑定域;亚细胞预测表明Md6PGDH定位存在差异。分析Md6PGDH1启动子发现存在多个响应非生物胁迫的顺式作用元件。定量分析显示,Md6PGDH1在苹果的不同组织中都有表达,且受非生物胁迫诱导。原核诱导Md6PGDH1蛋白并进行蛋白酶活的测定,为后续蛋白功能鉴定奠定了基础。Md6PGDH1在苹果愈伤组织中过量表达,提高其抗盐胁迫的能力。展开更多
文摘Objective:To investigate the effects of polysacharide MD 1 on eliminating free radical O -· 2,·OH and anti peroxidation on human erythrocyte membrane. Methods:testing the effect of eliminating O -· 2?·OH of MD 1 at different concentrations in vitro;testing the influence of MD 1 on peroxidation of free radical of human erythrocyte membrane by fluorescence. Results:Polyssacharide MD 1 could eliminate O -· 2 and·OH(<250 mg/L).compared with the control group( P <0.01). The result also showed that MD 1 could inhibit lipid peroxidation of human erythrocyte membrane,compared with the control group( P <0.01).
文摘以‘嘎拉’苹果为材料,克隆了6–磷酸葡萄糖酸脱氢酶基因Md6PGDH1(序列号:MDP0000279299)全长。序列分析显示,该基因包含一个长为1 047 bp完整的开放阅读框,编码347个氨基酸,分子量为36.430 k D,预测等电点为9.24。同源性分析表明Md6PGDH1还有另外3个同源基因;功能域分析表明Md6PGDH蛋白含有两个保守的绑定域;亚细胞预测表明Md6PGDH定位存在差异。分析Md6PGDH1启动子发现存在多个响应非生物胁迫的顺式作用元件。定量分析显示,Md6PGDH1在苹果的不同组织中都有表达,且受非生物胁迫诱导。原核诱导Md6PGDH1蛋白并进行蛋白酶活的测定,为后续蛋白功能鉴定奠定了基础。Md6PGDH1在苹果愈伤组织中过量表达,提高其抗盐胁迫的能力。
