chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 181870484 181870485 G A 2 GENIC homozygous 589156767 4 181871589 181871590 A G 4 GENIC homozygous 589156768 4 181871907 181871908 C T 1 GENIC homozygous 591537332 4 181872168 181872169 G T 4 GENIC homozygous 591537333