chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 5490868 5490869 A C 26 GENIC homozygous 968397151 20 5490887 5490888 G A 24 GENIC homozygous 968397152 20 5491349 5491350 C G 31 GENIC homozygous 968397153