chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 35197925 35197926 T - 1 GENIC homozygous 53871315 7 35197957 35197958 T - 3 GENIC homozygous 53871321 7 35216788 35216789 C CA 4 GENIC homozygous 53871334