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名称
碱性磷酸酶 来源于牛肠粘膜
货号
P755448-2KU
包装规格
2KU
浓度
buffered aqueous glycerol solution,≥4,000 DEA units/mg protein
产品介绍
推荐用于抗体和蛋白质缀合的高比活性等级。碱性磷酸酶可用于酪蛋白和其他蛋白质的去磷酸化。碱性磷酸酶还可用于 DNA 或 RNA 的 5′-末端的去磷酸化,以防止自我连接。经碱性磷酸酶的去磷酸化作用后,DNA 或 RNA 还可被放射性标记磷酸盐标记(通过 T4 多核苷酸激酶)。 碱性磷酸酶通常在酶联免疫吸附测定(ELISA)、免疫印迹和免疫组化等免疫学技术中与抗体和其他蛋白偶联。它通常用于蛋白质和核酸去磷酸化,也可用于高灵敏度的蛋白标记。碱性磷酸酶也可用于DNA 或 RNA 的5′-末端去磷酸化,以防止自身连接。用碱性磷酸酶去磷酸化后,也可用放射性标记的磷酸盐(通过 T4 多核苷酸激酶)标记 DNA 或 RNA。产物 P7923 已被用于一种新的产腈水解酶菌株筛选策略 。该酶已被用于开发一种高灵敏度的免疫测定法,用于测定千分之一的碱性磷酸酶。它不仅被用于胰岛素原的免疫测定,也被用于预处理 ISG(未成熟分泌颗粒)膜,以研究其蛋白质组分的磷酸化。 Alkaline phosphatase can be used to dephosphorylate casein and other proteins. Alkaline phosphatase may be also be used to dephosphorylate the 5′-termini of DNA or RNA to prevent self-ligation. DNA or RNA can also be tagged with radiolabeled phosphate (via T4 polynucleotide kinase) after dephosphorylation with alkaline phosphatase.. Alkaline phosphatase is usually conjugated to antibodies and other proteins in immunological techniques such as ELISA, Western blotting, and immunohistochemistry. It is routinely used to dephosphorylate proteins and nucleic acids. It may be used for protein labeling when high sensitivity is required. Alkaline phosphatase may be also be used to dephosphorylate the 5′-termini of DNA or RNA to prevent self-ligation. DNA or RNA can also be tagged with radiolabeled phosphate (via T4 polynucleotide kinase) after dephosphorylation with alkaline phosphatase. Product P7923 has been used in a novel screening strategy for nitrilase-producing strains . High specific activity grade recommended for antibody and protein conjugation. The enzyme has been used to develop a highly sensitive immunoassay for determining one thousandth of an attomole (1 zeptomole) of alkaline phosphatase. It has been used in an immunoassay of proinsulin. It has also been used to pretreat ISG (immature secretory granule) membranes to study the phosphorylation of proteinacous components in it.
生化机理
来自牛肠粘膜的碱性磷酸酶在 pH 7.5-9.5 范围内最稳定。该酶对醇、胺、焦磷酸和酚的磷酸酯具有广泛的特异性。它在锌和镁或钙的二价离子存在下才具有活性 。该酶对醇类、胺类、焦磷酸盐以及酚类的磷酸酯具有广泛的特异性。常用于蛋白质和核酸的去磷酸化。这种酶是一种糖蛋白,含约 12% 的碳水化合物(6% 己糖和 6% 其他中性糖)。每个碱性磷酸酶分子含有四个锌原子和四个二硫键。 在镁存在的情况下,碱性磷酸酶活性达到最大。 它可催化磷酸单酯的水解,例如:对硝基苯基磷酸酯、磷酸苯基酯、磷酸酚酞、α-甘油磷酸盐,β-甘油磷酸、2-磷酸甘油酸、丙糖磷酸、葡萄糖-6-磷酸、葡萄糖 1-磷酸、果糖 1-磷酸、果糖 6-磷酸、腺苷 5-磷酸腺苷 3-磷酸、磷酸烯醇丙酮酸和 β-烟酰胺腺嘌呤二核苷酸磷酸等。 砷酸盐、半胱氨酸、碘、无机磷酸盐、焦磷酸盐、磷酸二异丙酯、三苯基磷酸盐、氟磷酸二异丙酯和 L-苯丙氨酸是碱性磷酸酶的一些强抑制剂。
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Research chemical

Research chemical; supplied for laboratory research, analysis, inspection, and scientific procurement use.

item number:P755448-2KU
Product model:2KU
level: buffered aqueous glycerol solution, ≥4, 000 DEA units/mg protein
Lead Time:30days
sold 727 Items
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