1 and 3-letter codes for amino acids:
A
Ala
G
Gly
M
Met
S
Ser
C
Cys
H
His
N
Asn
T
Thr
D
Asp
I
Ile
P
Pro
V
Val
E
Glu
K
Lys
Q
Gln
W
Trp
F
Phe
L
Leu
R
Arg
Y
Tyr
Unused letters:
B J O U X Z