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 => l-tyrosyl-[protein] + utp