chr start stop reference nuc variant nuc depth genic status zygosity variant ID 12 19172519 19172520 G C 48 GENIC homozygous 808912269 12 19172520 19172521 G T 48 GENIC homozygous 808912270 12 19172521 19172522 G T 49 GENIC possibly homozygous 808912271 12 19173645 19173646 A G 51 GENIC heterozygous 808912272