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Figure 2 | BMC Bioinformatics

Figure 2

From: An interactive visualization tool to explore the biophysical properties of amino acids and their contribution to substitution matrices

Figure 2

A minimum spanning tree of size, charge and hydrophobicity for the 20 amino acids of the standard genetic code. Specifically, this tree is built from the 67 amino acid indices that contain the words "hydrop" and/or "polar," "size," "volume," "charge," and "electr" as part of their description. This includes most of the indices that relate to the general concepts of amino acid size, charge, and hydrophobicity. Boxes A and B represent "natural" clusters formed by the minimum spanning tree of charge and size, respectively.

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