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amino acid residues molecular masses* | |||||
Residue | 3-letter | 1-letter | Formula | Average mass | Monoisotopic mass |
Glycine | Gly | G | C2H3NO | 57.051 | 57.02146372 |
Alanine | Ala | A | C3H5NO | 71.078 | 71.03711378 |
Serine | Ser | S | C3H5NO2 | 87.077 | 87.03202840 |
Proline | Pro | P | C5H7NO | 97.115 | 97.05276385 |
Valine | Val | V | C5H9NO | 99.131 | 99.06841391 |
Threonine | Thr | T | C4H7NO2 | 101.104 | 101.04767847 |
Cysteine | Cys | C | C3H5NOS | 103.143 | 103.00918478 |
Isoleucine | Ile | I | C6H11NO | 113.158 | 113.08406398 |
Leucine | Leu | L | C6H11NO | 113.158 | 113.08406398 |
Asparagine | Asn | N | C4H6N2O2 | 114.103 | 114.04292744 |
Aspartic acid | Asp | D | C4H5NO3 | 115.087 | 115.02694302 |
Glutamine | Gln | Q | C5H8N2O2 | 128.129 | 128.05857751 |
Lysine | Lys | K | C6H12N2O | 128.172 | 128.09496301 |
Glutamic acid | Glu | E | C5H7NO3 | 129.114 | 129.04259309 |
Methionine | Met | M | C5H9NOS | 131.196 | 131.04048491 |
Histidine | His | H | C6H7N3O | 137.139 | 137.05891186 |
Phenylalanine | Phe | F | C9H9NO | 147.174 | 147.06841391 |
Arginine | Arg | R | C6H12N4O | 156.186 | 156.10111102 |
Tyrosine | Tyr | Y | C9H9NO2 | 163.173 | 163.06332853 |
Tryptophan | Trp | W | C11H10N2O | 186.210 | 186.07931295 |
Appendix | |||||
hydronium cation | H3O+ | 19.0227 | 19.01784115084 | ||
Hydrogen | H | H | 1.00794 | 1.00782503223 | |
Carbon | C | C | 12.0107 | 12 | |
Nitrogen | N | N | 14.0067 | 14.0030740044 | |
Oxgen | O | O | 15.9994 | 15.99491461957 | |
Sulfur | S | S | 32.065 | 31.9720711744 | |
proton | p | H+ | 1.007276466812 | ||
electron | e | 0.00054857990946 | |||
*http://www.riken.jp/BiomolChar/files/Isotopicmasses.htm | |||||