chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 219418134 219418135 T C 39 GENIC homozygous 108540652 1 219420855 219420856 T A 32 GENIC homozygous 108540654 1 219423004 219423005 G A 37 GENIC homozygous 108540658