chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 7450147 7450148 G A 41 GENIC homozygous 978693287 4 7450490 7450491 T G 56 GENIC homozygous 978693288 4 7451468 7451469 A C 30 GENIC homozygous 978693289