chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 137228554 137228555 A G 15 GENIC possibly homozygous 56943592 4 137228629 137228630 A G 28 GENIC possibly homozygous 56943593 4 137228773 137228774 G T 19 GENIC homozygous 56943594