Substrate specificity of<i>E. coli</i>uridine phosphorylase. Further evidences of high-<i>syn</i>conformation of the substrate in uridine phosphorolysis
作者:C. S. Alexeev、G. G. Sivets、T. N. Safonova、S. N. Mikhailov
DOI:10.1080/15257770.2016.1223306
日期:2017.2
ABSTRACT Twenty five uridineanalogues have been tested and compared with uridine with respect to their potency to bind to E. coli uridine phosphorylase. The kinetic constants of the phosphorolysis reaction of uridinederivatives modified at 2′-, 3′- and 5′-positions of the sugar moiety and 2-, 4-, 5- and 6-positions of the heterocyclic base were determined. The absence of the 2′- or 5′-hydroxyl group is