chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 136670545 136670546 G A 29 GENIC homozygous 56941490 4 136670644 136670645 A G 25 GENIC homozygous 56941491 4 136670802 136670803 C T 23 GENIC homozygous 56941492