chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 4364542 4364543 G A 4 GENIC homozygous 125175663 20 4364559 4364560 T C 5 GENIC homozygous 125175664 20 4365759 4365760 A G 14 GENIC homozygous 125175665