chr start stop reference nuc variant nuc depth genic status zygosity variant ID 12 31861276 31861277 C CT 26 GENIC heterozygous 50622098 12 31861277 31861278 T - 26 GENIC heterozygous 50174538 12 31866911 31866914 AGC --- 2 GENIC heterozygous 50442021