preferred_name: PGE2 is converted to PGF2a by CBR1 (Rattus norvegicus)
preferred_name_lc: pge2 is converted to pgf2a by cbr1 (rattus norvegicus)
label: PGE2 is converted to PGF2a by CBR1 (Rattus norvegicus)
label_lc: pge2 is converted to pgf2a by cbr1 (rattus norvegicus)