preferred_name: PA is converted to CDP-DAG by CDS1 (Xenopus tropicalis)
preferred_name_lc: pa is converted to cdp-dag by cds1 (xenopus tropicalis)
label: PA is converted to CDP-DAG by CDS1 (Xenopus tropicalis)
label_lc: pa is converted to cdp-dag by cds1 (xenopus tropicalis)