chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 123163135 123163136 G A 12 GENIC homozygous 113155773 4 123164632 123164633 G T 28 GENIC homozygous 113155774 4 123167403 123167404 C T 21 GENIC possibly homozygous 113155775