chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 2620465 2620466 C T 40 GENIC heterozygous 53765990 7 2621515 2621518 TTT --- 29 GENIC heterozygous 56645550 7 2621517 2621518 T - 29 GENIC heterozygous 56645552