L-tyrosyl-[protein] + UTP = O-(5'-uridylyl)-L-tyrosyl-[protein] + diphosphate
l-tyrosyl-[protein] + utp = o-(5'-uridylyl)-l-tyrosyl-[protein] + diphosphate
L-tyrosyl-[protein] + UTP = O-(5'-uridylyl)-L-tyrosyl-[protein] + diphosphate
l-tyrosyl-[protein] + utp = o-(5'-uridylyl)-l-tyrosyl-[protein] + diphosphate