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. 2014 Sep 19;15(1):309. doi: 10.1186/1471-2105-15-309

Table 2.

Amino acid types encoded in color classes

Color class Amino acids Description
Red AVFPMILW Small and/or hydrophobic and/or aromatic
Blue DE Acidic
Magenta RK Basic
Green STYHCNGQ Hydroxyl and/or polar and/or basic

Classification of amino acid types in color classes originally proposed in [33] and used to define the color/2predicate.