chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 117067840 117067841 C T 18 GENIC homozygous 115846207 7 117069670 117069671 T A 19 GENIC homozygous 115846209 7 117070620 117070621 A C 29 GENIC homozygous 115846211