chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 81244435 81244436 T C 9 GENIC homozygous 928871542 4 81245812 81245813 G A 43 GENIC homozygous 928871543 4 81247208 81247209 A G 38 GENIC homozygous 928871544