chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 219537611 219537612 A G 30 GENIC homozygous 108540794 1 219540701 219540702 T G 24 GENIC homozygous 108540796 1 219542874 219542875 G A 54 GENIC homozygous 108540798