chr start stop reference nuc variant nuc depth genic status zygosity variant ID 18 27634588 27634589 A G 13 GENIC homozygous 110317177 18 27634590 27634591 G A 13 GENIC homozygous 110317180 18 27634605 27634606 C A 13 GENIC homozygous 110317182