作者:Jose Luis Muñoz-Muñoz、Francisco Garcia-Molina、Enrique Arribas、Pedro Antonio Garcia-Ruíz、Jose Tudela、Francisco Garcia-Cánovas、Jose Neptuno Rodríguez-López
DOI:10.3109/14756366.2010.548811
日期:2011.10.1
terin (DMBH(4)) are oxidized by tyrosinase in a process during which the suicide inactivation of tyrosinase may occur. From the kinetic study of this process, [Formula: see text] (apparent maximum constant for the suicide inactivation), [Formula: see text] (Michaelis constant for the substrate) and r (number of turnovers that the enzyme makes before the inactivation) can be obtained. From the results
四氢生物蝶呤(BH(4)),甲基四氢蝶呤(MBH(4))和二甲基四氢蝶呤(DMBH(4))在可能发生酪氨酸酶自杀自杀的过程中被酪氨酸酶氧化。通过此过程的动力学研究,[公式:参见文字](自杀灭活的表观最大常数),[公式:参见文字](底物的米迦勒常数)和r(酶在灭活前的周转次数) ) 可以获得。从获得的结果中,可以推论出由([公式:参见文本])控制的灭活速度及其效价([公式:参见文本])遵循以下顺序:BH(4)> MBH( 4)> DMBH(4)。