Sifa za α-amino asidi ni changamano, lakini ni rahisi kwa kuwa kila molekuli ya amino asidi inahusisha vikundi viwili vya utendaji: carboxyl (-COOH) na amino (-NH2).
Kila molekuli inaweza kuwa na mnyororo wa upande au kikundi cha R, kwa mfano Alanine ni mfano wa asidi ya amino ya kawaida iliyo na kikundi cha mnyororo wa upande wa methyl.Vikundi vya R vina aina mbalimbali za maumbo, saizi, malipo na utendakazi tena.Hii inaruhusu amino asidi kupangwa kulingana na mali ya kemikali ya minyororo yao ya upande.
Jedwali la vifupisho vya kawaida vya amino asidi na mali
| Jina | Nambari ya barua tatu | Msimbo wa barua moja | Molekuli | Molekuli | Mabaki | Uzito wa Mabaki | pKa | pKb | pKx | pl |
| Alanine | Ala | A | 89.10 | C3H7NO2 | C3H5NO | 71.08 | 2.34 | 9.69 | - | 6.00 |
| Arginine | Arg | R | 174.20 | C6H14N4O2 | C6H12N4O | 156.19 | 2.17 | 9.04 | 12.48 | 10.76 |
| Asparagine | Asn | N | 132.12 | C4H8N2O3 | C4H6N2O2 | 114.11 | 2.02 | 8.80 | - | 5.41 |
| Asidi ya aspartic | Asp | D | 133.11 | C4H7NO4 | C4H5NO3 | 115.09 | 1.88 | 9.60 | 3.65 | 2.77 |
| Cysteine | Cys | C | 121.16 | C3H7NO2S | C3H5NOS | 103.15 | 1.96 | 10.28 | 8.18 | 5.07 |
| Asidi ya Glutamic | Glu | E | 147.13 | C5H9NO4 | C5H7NO3 | 129.12 | 2.19 | 9.67 | 4.25 | 3.22 |
| Glutamine | Gln | Q | 146.15 | C5H10N2O3 | C5H8N2O2 | 128.13 | 2.17 | 9.13 | - | 5.65 |
| Glycine | Gly | G | 75.07 | C2H5NO2 | C2H3NO | 57.05 | 2.34 | 9.60 | - | 5.97 |
| Histidine | Yake | H | 155.16 | C6H9N3O2 | C6H7N3O | 137.14 | 1.82 | 9.17 | 6.00 | 7.59 |
| Hydroxyproline | Hyp | O | 131.13 | C5H9NO3 | C5H7NO2 | 113.11 | 1.82 | 9.65 | - | - |
| Isoleusini | Ile | I | 131.18 | C6H13NO2 | C6H11NO | 113.16 | 2.36 | 9.60 | - | 6.02 |
| Leusini | Leu | L | 131.18 | C6H13NO2 | C6H11NO | 113.16 | 2.36 | 9.60 | - | 5.98 |
| Lysine | Lys | K | 146.19 | C6H14N2O2 | C6H12N2O | 128.18 | 2.18 | 8.95 | 10.53 | 9.74 |
| Methionine | Alikutana | M | 149.21 | C5H11NO2S | C5H9NOS | 131.20 | 2.28 | 9.21 | - | 5.74 |
| Phenylalanine | Phe | F | 165.19 | C9H11NO2 | C9H9NO | 147.18 | 1.83 | 9.13 | - | 5.48 |
| Proline | Pro | P | 115.13 | C5H9NO2 | C5H7NO | 97.12 | 1.99 | 10.60 | - | 6.30 |
| Pyroglutamatic | Glp | U | 139.11 | C5H7NO3 | C5H5NO2 | 121.09 | - | - | - | 5.68 |
| Serine | Seva | S | 105.09 | C3H7NO3 | C3H5NO2 | 87.08 | 2.21 | 9.15 | - | 5.68 |
| Threonine | Thr | T | 119.12 | C4H9NO3 | C4H7NO2 | 101.11 | 2.09 | 9.10 | - | 5.60 |
| Tryptophan | Safari | W | 204.23 | C11H12N2O2 | C11H10N2O | 186.22 | 2.83 | 9.39 | - | 5.89 |
| Tyrosine | Tyr | Y | 181.19 | C9H11NO3 | C9H9NO2 | 163.18 | 2.20 | 9.11 | 10.07 | 5.66 |
| Valine | Val | V | 117.15 | C5H11NO2 | C5H9NO | 99.13 | 2.32 | 9.62 | - | 5.96 |
Amino asidi ni yabisi fuwele ambayo kwa kawaida huyeyushwa na maji na huyeyushwa kwa kiasi katika vimumunyisho vya kikaboni.Umumunyifu wao hutegemea saizi na asili ya mnyororo wa upande.Asidi za amino zina viwango vya juu sana vya kuyeyuka, hadi 200-300 ° C.Tabia zao zingine hutofautiana kwa kila asidi ya amino.
Muda wa kutuma: Apr-19-2021
