preferred_name: Part of pro-beta-NGF is processed to mature beta-NGF (Xenopus tropicalis)
preferred_name_lc: part of pro-beta-ngf is processed to mature beta-ngf (xenopus tropicalis)
label: Part of pro-beta-NGF is processed to mature beta-NGF (Xenopus tropicalis)
label_lc: part of pro-beta-ngf is processed to mature beta-ngf (xenopus tropicalis)