chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 268842566 268842567 C G 3 GENIC homozygous 664642302 1 268843563 268843564 T G 30 GENIC homozygous 664642303 1 268846199 268846200 G A 21 GENIC homozygous 664642304