chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 168874333 168874334 G T 27 GENIC homozygous 112945477 4 168883561 168883562 C T 36 GENIC homozygous 112945483 4 168884477 168884478 T C 7 GENIC homozygous 112945485