chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 4523249 4523250 G A 36 GENIC homozygous 109074669 20 4526972 4526973 G A 26 GENIC homozygous 109390039 20 4527642 4527643 T C 28 GENIC homozygous 109074671 20 4529254 4529255 T C 34 GENIC homozygous 109074673