A Sensitive and Selective High-Throughput Screening Fluorescence Assay for Lipases and Esterases
作者:Erich Nyfeler、Johann Grognux、Denis Wahler、Jean-Louis Reymond
DOI:10.1002/hlca.200390240
日期:2003.8
(6) such as octanoate 2a are shown to be exceptionally sensitive and selective fluorogenic substrates for lipases and esterases. Umbelliferone (8) is released upon hydrolysis of the ester function in 2a in the presence of bovine serum albumin and sodium periodate. These substrates are at least by one order of magnitude more sensitive to lipases than the commercial fluorogenic substrate 4-methylumbelliferyl
7-(3,4-二羟基丁氧基)-2 H -1-苯并吡喃-2-酮(6)的长链脂肪酸酯,例如辛酸酯2a,被证明是对脂肪酶和酯酶异常敏感和选择性的荧光底物。在存在牛血清白蛋白和高碘酸钠的情况下,在2a中酯官能团水解后会释放伞形酮(8)。这些底物对脂酶的敏感性比市售荧光底物4-甲基伞形基庚酸庚酸酯高至少一个数量级。此外,它们在广泛的pH诱导和热水解条件下都稳定,并且不与非催化蛋白(如牛血清白蛋白(BSA))反应。