申请人:Kikkoman Corporation
公开号:EP3216865A1
公开(公告)日:2017-09-13
The present invention provides a composition that enables measurement of glycated hemoglobin in the presence of a stronger surfactant than conventional surfactants. To this end, the present invention provides an amadoriase in which one or more amino acids have been substituted at positions corresponding to positions selected from the group consisting of positions 80, 71, 175, 172, 279, 12, 9, 77, 30, 28, 13, 3, 4, 286, 204, 338, 44, 340, and 194 of the amadoriase derived from the genus Coniochaeta having the amino acid sequence as shown in SEQ ID NO: 1 as well as a composition for measurement of glycated hemoglobin comprising an amadoriase that retains activity in the presence of an anionic surfactant. The present invention can provide an enzyme and a composition for measurement of glycated hemoglobin that sufficiently remain stable even when exposed to anionic surfactants.
本发明提供了一种组合物,该组合物能够在比传统表面活性剂更强的表面活性剂存在下测量糖化血红蛋白。为此,本发明提供了一种氨甲蝶呤酶,其中一个或多个氨基酸在与选自具有 SEQ ID NO:1 所示氨基酸序列的氨甲蝶呤酶,以及一种用于测量糖化血红蛋白的组合物,该组合物包含一种在阴离子表面活性剂存在下仍能保持活性的氨甲蝶呤酶。本发明可提供一种用于测量糖化血红蛋白的酶和组合物,即使暴露于阴离子表面活性剂中也能充分保持稳定。