preferred_name: loading of Serotonin in synaptic vesicles (Xenopus tropicalis)
preferred_name_lc: loading of serotonin in synaptic vesicles (xenopus tropicalis)
label: loading of Serotonin in synaptic vesicles (Xenopus tropicalis)
label_lc: loading of serotonin in synaptic vesicles (xenopus tropicalis)