chr start stop reference nuc variant nuc depth genic status zygosity variant ID 19 55879411 55879412 A G 50 GENIC homozygous 930855879 19 55880189 55880190 A C 39 GENIC homozygous 930855880 19 55880487 55880488 C T 28 GENIC homozygous 930855881