chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 141830529 141830530 G A 20 GENIC homozygous 56959689 4 141830532 141830533 G - 20 GENIC homozygous 56959690 4 141830541 141830542 G A 20 GENIC homozygous 56959691 4 141830610 141830611 A G 16 GENIC homozygous 56959692