chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 160849553 160849554 T C 29 GENIC homozygous 57541000 4 160849943 160849944 T C 15 GENIC homozygous 57541002 4 160850043 160850044 A G 30 GENIC homozygous 57541004