UMP kinase activity https://github.com/geneontology/go-ontology/issues/25991 https://github.com/geneontology/go-ontology/issues/29533 https://github.com/geneontology/go-ontology/issues/30557 SmbA ATP:UMP phosphotransferase activity PyrH RHEA:24400 molecular_function Catalysis of the reaction: ATP + UMP = ADP + UDP. GO:0033862 uridine monophosphate kinase activity UMPK MetaCyc:RXN-12002 UMP-kinase activity EC:2.7.4.22 nucleoside monophosphate kinase activity