chr start stop reference nuc variant nuc depth genic status zygosity variant ID 12 19335921 19335922 C T 78 GENIC homozygous 980054637 12 19336039 19336040 A G 86 GENIC homozygous 980054638 12 19336042 19336043 G A 88 GENIC homozygous 980054639