chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 18509846 18509847 G A 22 GENIC homozygous 115587211 7 18510675 18510676 G A 21 GENIC homozygous 115587212 7 18515968 18515969 A G 39 GENIC homozygous 115587213