chr start stop reference nuc variant nuc depth genic status zygosity variant ID 3 138973399 138973400 T C 31 GENIC homozygous 928734463 3 138973475 138973476 T C 31 GENIC homozygous 928734464 3 138973720 138973721 G A 43 GENIC homozygous 928734465