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    • 2. 发明申请
    • METHOD FOR PREPARING SURFACE MODIFIED CARBONIC ANHYDRASE WITH ENHANCED ACTIVITY AND/OR STABILITY
    • 用增强活性和/或稳定性制备表面改性碳纳米管的方法
    • WO2014012181A1
    • 2014-01-23
    • PCT/CA2013/050552
    • 2013-07-16
    • CO2 SOLUTIONS INC.
    • GINGRAS, JulieMADORE, EricSIMARD, MathieuVOYER, NormandKELLY, Glenn R.
    • C12N9/96B01D53/62C12N9/88C12P3/00C12Q1/527
    • B01D53/62B01D53/86B01D2255/804B01D2257/504C12N9/88C12N9/96C12P7/40C12Q1/527C12Y402/01001Y02C10/04Y02P20/152Y02P20/59
    • A method for obtaining surface modified carbonic anhydrases having improved activity and/or stability is provided. The method comprises modifying surface functional groups of a carbonic anhydrase having an initial surface charge by reaction with a reagent while varying a predetermined reaction parameter, whereby the reaction allows obtaining a set of modified carbonic anhydrases with respective surface charges different than the initial surface charge; testing the stability and/or activity of the modified carbonic anhydrases; and identifying modified carbonic anhydrases having improved stability and/or activity. The method may also 10 comprise surface modifying a plurality of different carbonic anhydrases in the presence of at least one reagent; testing the stability and/or activity of resulting modified carbonic anhydrases; and identifying the modified carbonic anhydrases having improved stability and/or activity. A surface modified carbonic anhydrase having improved stability and/or activity is also provided. The modified carbonic anhydrase is useful biocatalyst for CO 2 hydration or desorption.
    • 提供了获得具有改善的活性和/或稳定性的表面改性碳酸酐酶的方法。 该方法包括通过与试剂反应来改变具有初始表面电荷的碳酸酐酶的表面官能团,同时改变预定的反应参数,由此反应允许获得一组具有不同于初始表面电荷的表面电荷的改性碳酸酐酶; 测试改性碳酸酐酶的稳定性和/或活性; 并鉴定具有改善的稳定性和/或活性的改性碳酸酐酶。 该方法还可以包含在至少一种试剂存在下表面修饰多种不同的碳酸酐酶; 测试所得改性碳酸酐酶的稳定性和/或活性; 并鉴定具有改善的稳定性和/或活性的改性碳酸酐酶。 还提供了具有改善的稳定性和/或活性的表面改性的碳酸酐酶。 改性碳酸酐酶是用于CO 2水合或解吸的生物催化剂。