chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 181872420 181872421 A - 23 GENIC homozygous 749374034 4 181872427 181872428 A - 24 GENIC homozygous 749374035 4 181872443 181872444 A - 23 GENIC homozygous 749374036