chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 40076702 40076703 G T 10 GENIC homozygous 937831662 4 40109942 40109943 T A 25 GENIC homozygous 937831663 4 40109943 40109944 A C 25 GENIC homozygous 937831664