chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 20618539 20618540 G T 11 GENIC heterozygous 112540727 4 20619334 20619335 A T 9 GENIC heterozygous 112540733 4 20621510 20621511 A G 14 GENIC homozygous 112540743