Comparison of the substrate selectivity and biochemical properties of human and bacterial γ-butyrobetaine hydroxylase
作者:Anna M. Rydzik、Ivanhoe K. H. Leung、Grazyna T. Kochan、Nikita D. Loik、Luc Henry、Michael A. McDonough、Timothy D. W. Claridge、Christopher J. Schofield
DOI:10.1039/c4ob01167h
日期:——
iron dependent oxygenases have potential for the stereoselective hydroxylation of amino acids and related compounds. The biochemical and kinetic properties of recombinant γ-butyrobetaine hydroxylase from human and Pseudomonas sp. AK1 were compared. The results reveal differences between the two BBOXs, including in their stimulation by ascorbate. Despite their closely related sequences, the two enzymes
2-氧戊二酸和铁依赖性加氧酶具有使氨基酸和相关化合物立体选择性羟基化的潜力。来自人和假单胞菌属的重组γ-丁酰甜菜碱羟化酶的生化和动力学特性。AK1 进行了比较。结果揭示了两种 BBOX 之间的差异,包括抗坏血酸的刺激。尽管它们的序列密切相关,但这两种酶也表现出不同的底物选择性,包括用于生产(二)羟基化甜菜碱,这意味着将工程化 BBOX 用于生物催化目的可能是有效的。