chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 137099955 137099956 T C 41 GENIC homozygous 56942799 4 137099964 137099965 G A 42 GENIC homozygous 56942800 4 137100203 137100204 T C 48 GENIC homozygous 56942801 4 137100618 137100619 A G 66 GENIC homozygous 56942802