| Aminosäure | Codes | Relative Häufigkeit (Mol %) (1) | MM (2) | pKa (3) |
|---|---|---|---|---|
| Grundstruktur | ||||
| Glycin | gly G | 8.3 | 57.05 | |
| Aliphatisch | ||||
| Prolin | pro P | 3.4 | 97.12 | |
| Alanin | ala A | 9.4 | 71.09 | |
| Valin | val V | 5.8 | 99.13 | |
| Leucin | leu L | 10.7 | 113.08 | |
| Isoleucin | ile I | 5.7 | 113.16 | |
| Aromatisch | ||||
| Phenylalanin | phe F | 4.8 | 147.18 | |
| Tryptophan | trp W | 1.1 | 186.21 | |
| Tyrosin | tyr Y | 2.9 | 163.18 | 9.6 |
| Histidin | his H | 2.1 | 137.14 | 7.0 |
| Schwefelhaltig | ||||
| Cystein | cys C | 2.5 | 103.15 | 8.5 |
| Methionin | met M | 2.3 | 131.20 | |
| Hydroxyhaltig | ||||
| Serin | ser S | 7.4 | 87.08 | 16 |
| Threonin | thr T | 5.5 | 101.11 | 16 |
| Stark sauer | ||||
| Asparaginsäure | asp D | 4.6 | 115.09 | 4.7 |
| Glutaminsäure | glu E | 5.3 | 129.16 | 12 |
| Stark basisch | ||||
| Lysin | Lys K | 5.6 | 128.17 | 10.2 |
| Arginin | arg R | 4.6 | 156.19 | 12 |
| Amide | ||||
| Asparagin | asn N | 4.3 | 114.10 | |
| Glutamin | gln Q | 3.7 | 128.13 |
(1) Analyse von 9 Proteinen: Insulin (Rind), Lysozym (Huhn), Mannitol-Permease und Lactose-Permease (E. coli), Hämoglobin und Cytochrom c (Mensch), Glucagon (Schwein), Ferredoxin (Spinat), Wolle (Schaf).
(2) Isotopischer Mittelwert des neutralen Aminoacylrests in einer Peptidbindung.
(3) In Peptiden in wässriger Lösung. N-Terminus: pKa = 7,8; C-Terminus: pKa = 3,7.