preferred_name: EP2 and EP4 receptors can bind PGE2 (Xenopus tropicalis)
preferred_name_lc: ep2 and ep4 receptors can bind pge2 (xenopus tropicalis)
label: EP2 and EP4 receptors can bind PGE2 (Xenopus tropicalis)
label_lc: ep2 and ep4 receptors can bind pge2 (xenopus tropicalis)