preferred_name: PC is exchanged with PI by PITPNB (Caenorhabditis elegans)
preferred_name_lc: pc is exchanged with pi by pitpnb (caenorhabditis elegans)
label: PC is exchanged with PI by PITPNB (Caenorhabditis elegans)
label_lc: pc is exchanged with pi by pitpnb (caenorhabditis elegans)