IUPAC codes for amino acids
(Single-letter codes based on International Union of Pure and Applied Chemistry)The information is gathered from: http://www.ebi.ac.uk/2can/tutorials/aa.html
One-letter abbreviation | Three-letter abbreviation | Description |
A | Ala | Alanine |
R | Arg | Arginine |
N | Asn | Asparagine |
D | Asp | Aspartic acid |
C | Cys | Cysteine |
Q | Gln | Glutamine |
E | Glu | Glutamic acid |
G | Gly | Glycine |
H | His | Histidine |
J | Xle | Leucine or Isoleucineucine |
L | Leu | Leucine |
I | ILe | Isoleucine |
K | Lys | Lysine |
M | Met | Methionine |
F | Phe | Phenylalanine |
P | Pro | Proline |
O | Pyl | Pyrrolysine |
U | Sec | Selenocysteine |
S | Ser | Serine |
T | Thr | Threonine |
W | Trp | Tryptophan |
Y | Tyr | Tyrosine |
V | Val | Valine |
B | Asx | Aspartic acid or Asparagine Asparagine |
Z | Glx | Glutamic acid or Glutamine Glutamine |
X | Xaa | Any amino acid |