Stereoselective adenylate deaminase (5′-adenylic acid deaminase, AMPDA)-catalyzed deamination of 5′-alkyl substituted adenosines: a comparison with the action of adenosine deaminase (ADA)
作者:Pierangela Ciuffreda、Angela Loseto、Enzo Santaniello
DOI:10.1016/j.tetasy.2003.11.007
日期:2004.1
The enzymes adenylate deaminase (AMPDA) and adenosine deaminase (ADA) are able to catalyze the stereoselective hydrolytic deamination of (5′R,S)-methyl-2′,3′-isopropylidene adenosine, but the 5′-butyl analog is a substrate only for AMPDA, which stereospecifically converts the (5′S)-isomer to the corresponding inosine derivative.
酶腺苷酸脱氨酶(AMPDA)和腺苷脱氨酶(ADA)是能够催化(5的立体选择性水解的脱氨基' - [R ,小号) -甲基- 2 ' ,3 '异亚丙基腺苷,但5 ' -丁基类似物是基材仅AMPDA,其立体专一性转换(5 '小号) -异构体为相应的肌苷衍生物。