preferred_name: GDNF,NRTN bind RET:GFRA1,GFRA2 (Rattus norvegicus)
preferred_name_lc: gdnf,nrtn bind ret:gfra1,gfra2 (rattus norvegicus)
label: GDNF,NRTN bind RET:GFRA1,GFRA2 (Rattus norvegicus)
label_lc: gdnf,nrtn bind ret:gfra1,gfra2 (rattus norvegicus)