2.7.4.22 ATP + UMP - 2.7.4.22 ATP + UMP high substrate specificity toward UMP and ATP 2.7.4.22 ATP + UMP two-substrate kinetics with UMP and ATP 2.7.4.22 ATP + UMP an essential metabolic step with a structure-based mechanism for the allosteric behavior of bacterial enzyme, overview 2.7.4.22 ATP + UMP the enzyme regulatory mechanisms involve GTP and UTP, overview 2.7.4.22 additional information UMP kinase exhibits an intrinsic fluorescence, due to its unique tryptophan, decreasing with the increase of UTP concentration 2.7.4.22 additional information bacterial UMP kinases are crucial enzymes that are responsible for microbial UTP biosynthesis, and bacterial UMPKs are specific for the phosphorylation of UMP only showing no dual activity in contrast to eukaryotic enzymes