One-Letter Amino Acid Codes
| By letter |
By name |
Mnemonic |
| A |
Alanine |
Alanine |
A |
| C |
Cysteine |
Arginine |
R |
Arginine |
| D |
Aspartic Acid |
Asparagine |
N |
Asparagine |
| E |
Glutamic Acid |
Aspartic Acid |
D |
D: Aspartic Acid |
| F |
Phenylalanine |
Cysteine |
C |
| G |
Glycine |
Glutamic Acid |
E |
DE: the other "Acid" |
| H |
Histidine |
Glutamine |
Q |
"Q-tamine" |
| I |
Isoleucine |
Glycine |
G |
| K |
Lysine |
Histidine |
H |
| L |
Leucine |
Isoleucine |
I |
| M |
Methionine |
Leucine |
L |
| N |
Asparagine |
Lysine |
K |
KL: Lysine
|
| P |
Proleine |
Methionine |
M |
| Q |
Glutamine |
Phenylalanine |
F |
Fenyl... Phenyl... |
| R |
Arginine |
Proline |
P |
| S |
Serine |
Serine |
S |
| T |
Threonine |
Threonine |
T |
| V |
Valine |
Tryptophan |
W |
"double-U": double ring |
| W |
Tryptophan |
Tyrosine |
Y |
Tyrosine |
| Y |
Tyrosine |
Valine |
V |