chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 56442615 56442616 T C 22 GENIC homozygous 112656818 4 56443021 56443022 T C 20 GENIC homozygous 112656819 4 56450003 56450004 T C 13 GENIC homozygous 112656825 4 56451744 56451745 A C 4 GENIC homozygous 112656826