chr start stop reference nuc variant nuc depth genic status zygosity variant ID 7 140465355 140465356 C T 21 GENIC homozygous 115938718 7 140465548 140465549 G T 23 GENIC homozygous 115938719 7 140465585 140465586 C T 29 GENIC homozygous 115938720