preferred_name: 5-phosphomethyl-dUMP in DNA + putrescine <=> 5-N(alpha)-putrescinyl-dTMP in DNA + phosphate
preferred_name_lc: 5-phosphomethyl-dump in dna + putrescine <=> 5-n(alpha)-putrescinyl-dtmp in dna + phosphate
label: 5-phosphomethyl-dUMP in DNA + putrescine <=> 5-N(alpha)-putrescinyl-dTMP in DNA + phosphate
label_lc: 5-phosphomethyl-dump in dna + putrescine <=> 5-n(alpha)-putrescinyl-dtmp in dna + phosphate