SNPs found in the CDSs of the human ABO and GBGT1 gene transcripts. Together with SNPs, cDNA sequences of ABO (ABO-203 ENST0000061156.4) and GBGT1 (GBGT1-203 ENST00000372040.7) genes were retrieved and modified; they are shown in panels A and B, respectively. The SNPs have been color coded by variation, as indicated at the bottom of the figure. The nucleotide and deduced amino acid sequences in the CDSs were numbered; they are shown at the right of each column.