preferred_name: loading of Serotonin in synaptic vesicles (Mus musculus)
preferred_name_lc: loading of serotonin in synaptic vesicles (mus musculus)
label: loading of Serotonin in synaptic vesicles (Mus musculus)
label_lc: loading of serotonin in synaptic vesicles (mus musculus)