restype_3to1
蛋白质氨基酸三字符对应的单字符表示，以三字符为键，单字符为值。
key |
value |
|---|---|
ALA |
A |
ARG |
R |
ASN |
N |
ASP |
D |
CYS |
C |
GLN |
Q |
GLU |
E |
GLY |
G |
HIS |
H |
ILE |
I |
LEU |
L |
LYS |
K |
MET |
M |
PHE |
F |
PRO |
P |
SER |
S |
THR |
T |
TRP |
W |
TYR |
Y |
VAL |
V |