Multiple sequence alignment of CYP120, CYP26A1, CYP26B1*1, and CYP26B1 amino acid sequences. The sequence identity between CYP26A1 and CYP26B1, CYP26B1*1, and CYP120 was 44.47%, 44.26%, and 33.26%, respectively. For CYP26B1*1, a 99.61% and 34.69% sequence identity was observed with CYP26B1 and CYP120, respectively. Amino acids are represented in red (small/hydrophobic), blue (acidic), purple (basic), and green (hydroxyl/sulfhydryl/amine). Sequence consensus is indicated by an asterisk (residue is fully conserved across all sequences), a colon (consensus group contains very similar properties), or a period (consensus group contains weakly similar properties).