| 人胰型及唾液型淀粉酶的分离纯化与鉴定 |
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| 引用本文： | 朱玉胜,倪赞明.人胰型及唾液型淀粉酶的分离纯化与鉴定[J].江西医学检验,1999,17(1):10-12. |
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| 作者姓名： | 朱玉胜 倪赞明 |
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| 作者单位： | 上海医科大学华山医院检验科 200040
(朱玉胜，倪赞明)，上海医科大学华山医院检验科 200040(吕元) |
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| 摘 要： | 目的 为获得高比活性、高纯度的人胰型及唾液型淀粉酶。方法 用硫酸铵分级沉淀、Ｓｅ ｐｈａｄｅｘ Ｇ－５０凝胶层析及ＤＥＡＥ－纤维素离子交换层析法分别从人胰腺及唾液中分离纯化人胰型及唾液型淀粉酶，并用聚丙烯酰胺凝胶电泳法进行纯度、酶活性及分子量鉴定。结果 获得了高比活性及高纯度的人胰型及唾液型淀粉酶，胰型及唾液型淀粉酶的表现分子量分别为５５ＫＤ和５７ＫＤ。结论 本方法是获得高纯度及高比活性人胰型及唾
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| 关 键 词： | 胰型 淀粉酶 唾液型 分离 纯化 鉴定 |
Purification and characterization of human pancreatic and salivary amylases |
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| Zhu
Yusheng,Ni Zanming,Lu Yuan.Purification and characterization of human pancreatic and salivary amylases[J].Jiangxi Journal of Medical Laboratory Sciences,1999,17(1):10-12. |
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| Authors: | Zhu
Yusheng Ni Zanming Lu Yuan |
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| Institution: | Zhu
Yusheng,Ni Zanming,Lu Yuan. Department of Laboratory Medicine,Huashan Hospital,Shanghai Medical University,Shanghai 200040 |
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| Abstract: | Objective To obtain human pancreatic and salivary amylase with high specific activity and high purity. Methods Pancreatic and salivary amylases were separated and purified from human pancreas and saliva with ammonium sulfate fractionation, Sephadex G - 50 gel chro-matography, and DEAE - cellulose ion - exchange chromatography. Polyacrylamide gel elec-trophoresis was also applied to determine the purity, activity, and molecular weights of pancreatic and salivary amylases. Results Pancreatic and salivary amylases with high specific activity and high purity were obtained.The apparent molecular weights of pancreatic and salivary amylases were 55KD and 57KD,respectively.Conclusion This protocol is an effective approach to obtain pancreatic and salivary amylases with high specific activity and high purity. |
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| Keywords: | Pancreatic amylase Salivary amylase Purification Characterization |
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