chr start stop reference nuc variant nuc depth genic status zygosity variant ID 12 42228747 42228748 C T 21 GENIC homozygous 186969082 12 42231672 42231673 C G 17 GENIC homozygous 185192040 12 42239304 42239305 T C 6 GENIC homozygous 186969083 12 42240038 42240039 A G 19 GENIC homozygous 186969084