chr start stop reference nuc variant nuc depth genic status zygosity variant ID 2 181218183 181218184 C T 24 GENIC homozygous 74152547 2 181218419 181218420 C T 20 GENIC homozygous 74152549 2 181220027 181220028 A G 7 GENIC homozygous 74152551