chr start stop reference nuc variant nuc depth genic status zygosity variant ID 15 37577222 37577223 G C 2 GENIC homozygous 112879164 15 37609275 37609276 G C 4 GENIC homozygous 112807899 15 37609321 37609322 T G 3 GENIC homozygous 112807901