chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 157227144 157227145 C G 22 GENIC homozygous 112905873 4 157227738 157227739 G A 12 GENIC homozygous 112905877 4 157230448 157230449 G A 16 GENIC homozygous 112905879