chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 216127609 216127610 C T 30 GENIC homozygous 515768242 4 216127942 216127943 G T 25 GENIC heterozygous 515768243 4 216128085 216128086 C T 33 GENIC possibly homozygous 515768244