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  • 标题:Catalytic Accelerations of 1012-Fold by an Enzyme-Like Synthetic Polymer
  • 本地全文:下载
  • 作者:Helen C. Kiefer ; Wayne I. Congdon ; Ioannis S. Scarpa
  • 期刊名称:Proceedings of the National Academy of Sciences
  • 印刷版ISSN:0027-8424
  • 电子版ISSN:1091-6490
  • 出版年度:1972
  • 卷号:69
  • 期号:8
  • 页码:2155-2159
  • DOI:10.1073/pnas.69.8.2155
  • 语种:English
  • 出版社:The National Academy of Sciences of the United States of America
  • 摘要:A synthetic polymer, polyethyleneimine containing dodecyl (C12H25)-chains for binding sites and imidazole moieties for functional catalytic groups, catalyzes the hydrolysis of phenolic sulfate esters by a two-step mechanism resembling that of the corresponding natural enzyme. Quantitative rate studies give kinetic parameters that show that the polymer (synzyme) accelerates the rate 1012-fold compared to unbound imidazole, and 102-fold compared to a type IIA aryl sulfatase enzyme.
  • 关键词:Michaelis-Menten kinetics ; aryl sulfatase ; nitrocatechol sulfate
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