Inner circle signifies first nucleotide in codon, second circle signifies second nucleotide in codon, third circle signifies third (wobble) nucleotide in codon. Outer circle signifies corresponding amino acid.
Color Codon Wheel is also available as a Magnet or Sticker: For handy viewing post on lab refrigerator. Request a magnet or sticker.
Amino Acid Properties
Quantitive relative distribution of amino acid physico-chemical properties. A total of 26 physicochemical descriptors are condensed into the two top principal components, capturing >60% of the information. Reference Sandberg et al., J Med Chem 1998, 41:2481