From: Automated Alphabet Reduction for Protein Datasets
Amino Acid
Exposed ratio
Red. group
C
12.8%
1
I
15.4%
F
15.9%
L
19.5%
V
20.3%
W
21.3%
M
23.2%
Y
25.6%
A
33.6%
2
G
43.5%
3
H
43.8%
T
47.1%
S
48.0%
P
55.1%
4
N
58.3%
R
61.3%
Q
62.5%
D
64.7%
E
73.1%
5
K
81.9%