chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 132291980 132291981 C T 24 GENIC homozygous 113470070 4 132292577 132292578 C G 36 GENIC homozygous 112831086 4 132293926 132293927 T C 18 GENIC homozygous 112831087