Amino acid properties
Amino acid | 3-letter code | 1-letter code | pKa Cα-COOH | pKa Cα-NH3+ | pKa side chain | Isoelectric point (pI) |
Alanine (alanina) | Ala | A | 2.34 | 9.69 | - | 6.02 |
Arginine (arginina) | Arg | R | 2.17 | 9.04 | 12.48 | 10.76 |
Asparagine (asparagina) | Asn | N | 2.02 | 8.80 | - | 5.41 |
Cysteine (cysteina) | Cys | C | 1.71 | 10.78 | 8.33 | 5.02 |
Phenylalanine (fenyloalanina) | Phe | F | 1.83 | 9.13 | - | 5.48 |
Glycine (glicyna) | Gly | G | 2.34 | 9.60 | - | 5.97 |
Glutamine (glutamina) | Gln | Q | 2.17 | 9.13 | - | 5.65 |
Histidine (histydyna) | His | H | 1.82 | 9.17 | 6.00 | 7.59 |
Isoleucine (izoleucya) | Ile | I | 2.36 | 9.60 | - | 5.98 |
Aspartic acid (kwas asparaginowy) | Asp | D | 2.09 | 9.82 | 3.86 | 2.98 |
Glutamic acid (kwas glutaminowy) | Glu | E | 2.19 | 9.67 | 4.25 | 3.22 |
Leucine (leucyna) | Leu | L | 2.36 | 9.60 | - | 5.98 |
Lysine (lizyna) | Lys | K | 2.18 | 8.95 | 10.79 | 9.74 |
Methionine (metionina) | Met | M | 2.28 | 9.21 | - | 5.75 |
Proline (prolina) | Pro | P | 1.99 | 10.60 | - | 6.30 |
Serine (seryna) | Ser | S | 2.21 | 9.15 | - | 5.58 |
Threonine (treonina) | Thr | T | 2.09 | 9.10 | - | 5.60 |
Tryptophan (tryptofan) | Trp | W | 2.43 | 9.44 | - | 5.94 |
Tyrosine (tyrozyna) | Tyr | Y | 2.20 | 9.11 | 10.07 | 5.66 |
Valine (walina) | Val | V | 2.32 | 9.62 | - | 5.97 |
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