The large yellow croaker iridovirus(LYCIV)ATPase gene was cloned via PCR technique.Sequencing result of PCR product showed that it consisted of 720bp nuceleotides,encoding a protein of 240 amino acids in which a typic...The large yellow croaker iridovirus(LYCIV)ATPase gene was cloned via PCR technique.Sequencing result of PCR product showed that it consisted of 720bp nuceleotides,encoding a protein of 240 amino acids in which a typical ATP/GTP binding site motif was contained.Then the LYCIV ATPase gene was highly expressed in Hi5 insect cells using Baculovirus Bac To Bac expressioin system.SDS PAGE analysis indicated the expression product was about 31kD,and accounted for about 12% of the total cellular protein.Recombinant ATPase was purified by Ni NTA column.A good foundation had been laid down for studying of the functions of LYCIV ATPase.展开更多
Na^+-K^+-腺苷三磷酸酶(Na^+-K^+-ATP酶),在肾重吸收Na^+的过程中起着重要的作用,具有维持细胞内Na^+与细胞外K^+按比例进行交换的作用,它在肾中分布不均,研究该酶在肾小管中分布情况对了解肾Na^+重吸收功能及病理变化有一定的意义.本...Na^+-K^+-腺苷三磷酸酶(Na^+-K^+-ATP酶),在肾重吸收Na^+的过程中起着重要的作用,具有维持细胞内Na^+与细胞外K^+按比例进行交换的作用,它在肾中分布不均,研究该酶在肾小管中分布情况对了解肾Na^+重吸收功能及病理变化有一定的意义.本实验将Mayakara等人的柠檬酸铅法,稍加改变,应用对硝基苯酚磷酸(P--nitrophenylphosphate Na salt P-NPP钠盐)作底物,可获同样效果,灵敏度高,结果可靠.展开更多
文摘The large yellow croaker iridovirus(LYCIV)ATPase gene was cloned via PCR technique.Sequencing result of PCR product showed that it consisted of 720bp nuceleotides,encoding a protein of 240 amino acids in which a typical ATP/GTP binding site motif was contained.Then the LYCIV ATPase gene was highly expressed in Hi5 insect cells using Baculovirus Bac To Bac expressioin system.SDS PAGE analysis indicated the expression product was about 31kD,and accounted for about 12% of the total cellular protein.Recombinant ATPase was purified by Ni NTA column.A good foundation had been laid down for studying of the functions of LYCIV ATPase.
文摘Na^+-K^+-腺苷三磷酸酶(Na^+-K^+-ATP酶),在肾重吸收Na^+的过程中起着重要的作用,具有维持细胞内Na^+与细胞外K^+按比例进行交换的作用,它在肾中分布不均,研究该酶在肾小管中分布情况对了解肾Na^+重吸收功能及病理变化有一定的意义.本实验将Mayakara等人的柠檬酸铅法,稍加改变,应用对硝基苯酚磷酸(P--nitrophenylphosphate Na salt P-NPP钠盐)作底物,可获同样效果,灵敏度高,结果可靠.