chr start stop reference nuc variant nuc depth genic status zygosity variant ID 8 50526172 50526173 C CAT 37 GENIC homozygous 52625945 8 50526178 50526179 T C 37 GENIC homozygous 52625947 8 50526553 50526554 T TTG 29 GENIC homozygous 52625949