preferred_name: Addition of the third nucleotide on the nascent transcript (Canis familiaris)
preferred_name_lc: addition of the third nucleotide on the nascent transcript (canis familiaris)
label: Addition of the third nucleotide on the nascent transcript (Canis familiaris)
label_lc: addition of the third nucleotide on the nascent transcript (canis familiaris)