preferred_name: POLL or POLM extends aligned DNA DSB ends to fill gaps (Homo sapiens)
preferred_name_lc: poll or polm extends aligned dna dsb ends to fill gaps (homo sapiens)
label: POLL or POLM extends aligned DNA DSB ends to fill gaps (Homo sapiens)
label_lc: poll or polm extends aligned dna dsb ends to fill gaps (homo sapiens)