### Amino Acid Categories

The default amino acid categories used for selection (which are the default residue schemata in the Chimera tool ResProp) are taken from:

"Prediction of protein secondary structure and active sites using the alignment of homologous sequences," M.J. Zvelebil, G.J. Barton, W.R. Taylor, and M. J. Sternberg, J. Mol. Biol., 195, 957 (1987).

hydrophobic positivenegative polarcharged smalltiny aromatic aliphatic
ALA X X X
ARG X X X
ASN X X
ASP X X X X
CYS X X
GLU X X X
GLN X
GLY X X X
HIS X X X X X
ILE X X
LEU X X
LYS X X X X
MET X
PHE X X
PRO X
SER X X X
THR X X X
TRP X X X
TYR X X X
VAL X X X
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