Peptide Mass Spec Data
From OpenWetWare
Residue masses of natural and modified amino acids (alphabetic)
| Amino acid | Letter code | Residue Mass (Da) |
| Alanine | A | 71.04 |
| Arginine | R | 156.10 |
| Asparagine | N | 114.04 |
| Aspartate | D | 115.03 |
| Cystine | C | 103.01 |
| Phenylalanine | F | 147.07 |
| Glutamine | Q | 128.06 |
| Glutamate | E | 129.04 |
| Glycine | G | 57.02 |
| Histidine | H | 137.06 |
| Isoleucine | I | 113.08 |
| Leucine | L | 113.08 |
| Lysine | K | 128.09 |
| Methionine | M | 131.04 |
| Proline | P | 97.05 |
| Serine | S | 87.03 |
| Threonine | T | 101.05 |
| Tryptophan | W | 186.08 |
| Tyrosine | Y | 163.06 |
| Valine | V | 99.07 |
Residue masses of natural and modified amino acids (by mass)
| Amino acid | Letter code | Residue Mass (Da) |
| Glycine | G | 57.02 |
| Alanine | A | 71.04 |
| Serine | S | 87.03 |
| Proline | P | 97.05 |
| Valine | V | 99.07 |
| Threonine | T | 101.05 |
| Cystine | C | 103.01 |
| Leucine | L | 113.08 |
| Isoleucine | I | 113.08 |
| Asparagine | N | 114.04 |
| Aspartate | D | 115.03 |
| Glutamine | Q | 128.06 |
| Lysine | K | 128.09 |
| Glutamate | E | 129.04 |
| Methionine | M | 131.04 |
| Histidine | H | 137.06 |
| Phenylalanine | F | 147.07 |
| Arginine | R | 156.10 |
| Tyrosine | Y | 163.06 |
| Tryptophan | W | 186.08 |
