chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 181870484 181870485 G A 2 GENIC homozygous 606107820 4 181871461 181871462 C T 9 GENIC homozygous 608743394 4 181871589 181871590 A G 10 GENIC homozygous 606107821