chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 56756788 56756789 G C 35 GENIC possibly homozygous 112657109 4 56762980 56762981 C T 72 GENIC heterozygous 113024349 4 56762992 56762993 T C 80 GENIC heterozygous 113024351