chr start stop reference nuc variant nuc depth genic status zygosity variant ID 20 5490868 5490869 A C 10 GENIC homozygous 888417997 20 5490887 5490888 G A 11 GENIC homozygous 888417998 20 5491349 5491350 C G 13 GENIC homozygous 888417999