preferred_name: RNA(n) + UTP => RNA(n)-3'-uridine ribonucleotide + diphosphate
preferred_name_lc: rna(n) + utp => rna(n)-3'-uridine ribonucleotide + diphosphate
label: RNA(n) + UTP => RNA(n)-3'-uridine ribonucleotide + diphosphate
label_lc: rna(n) + utp => rna(n)-3'-uridine ribonucleotide + diphosphate