chr start stop reference nuc variant nuc depth genic status zygosity variant ID 1 199415141 199415142 A G 23 GENIC homozygous 108500428 1 199415480 199415481 T A 23 GENIC homozygous 108500430 1 199423816 199423817 A T 29 GENIC homozygous 108500448