chr start stop reference nuc variant nuc depth genic status zygosity variant ID 15 21920351 21920357 TTTTGT ------ 4 GENIC homozygous 696337019 15 21920355 21920356 G - 4 GENIC homozygous 696337020 15 21920371 21920372 T TG 4 GENIC homozygous 696337021 15 21920470 21920471 T G 14 GENIC homozygous 536258430