chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 145286112 145286113 C A 21 GENIC homozygous 112870748 4 145286446 145286447 G A 16 GENIC homozygous 112870749 4 145288973 145288974 C T 5 GENIC homozygous 112870750