label: O-[5'-(adenylyl-(5'->3')-adenylyl)]-L-tyrosyl-[protein] + ATP <=> O-[5'-(adenylyl-(5'->3')-adenylyl-(5'->3')-adenylyl)]-L-tyrosyl-[protein] + diphosphate
label_lc: o-[5'-(adenylyl-(5'->3')-adenylyl)]-l-tyrosyl-[protein] + atp <=> o-[5'-(adenylyl-(5'->3')-adenylyl-(5'->3')-adenylyl)]-l-tyrosyl-[protein] + diphosphate