chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 7450147 7450148 G A 7 GENIC homozygous 999996303 4 7450490 7450491 T G 5 GENIC homozygous 999996304 4 7451468 7451469 A C 5 GENIC homozygous 999996305