Insights into the Mechanistic Pathway of the<i>Pantoea agglomerans</i>Phenylalanine Aminomutase
作者:Susan Strom、Udayanga Wanninayake、Nishanka Dilini Ratnayake、Kevin D. Walker、James H. Geiger
DOI:10.1002/anie.201108525
日期:2012.3.19
The structure of the title aminomutase has been solved. The steric bulk of Phe 455 (green CPK structure) twists the phenylpropanoate ligand (green stick) by approximately 15° about the Cβ axis, which precludes a stronger bidentate salt bridge with Arg 323 (magenta structure). Instead, a weaker monodentate bridge may partially explain the different configuration of the product, relative to that obtained
标题氨基变位酶的结构已解决。Phe 455(绿色CPK结构)的空间体积使苯基丙酸酯配体(绿色棒)绕Cβ轴扭曲了大约15° ,这排除了具有Arg 323(品红色结构)的更强的双齿盐桥。相反,相对于用形成双齿中间体的同工酶所获得的构型,较弱的单齿桥可以部分解释产物的不同构型。