chr start stop reference nuc variant nuc depth genic status zygosity variant ID 4 148951665 148951666 A G 43 GENIC homozygous 112879437 4 148951668 148951669 T C 43 GENIC homozygous 112879439 4 148951886 148951887 G T 26 GENIC possibly homozygous 112879440 4 148952536 148952537 C T 26 GENIC homozygous 112879444