Pwopriyete α-asid amine yo konplèks, men senplist nan ke chak molekil nan yon asid amine enplike de gwoup fonksyonèl: carboxyl (-COOH) ak amine (-NH2).
Chak molekil ka genyen yon chèn bò oswa yon gwoup R, pa egzanp Alanine se yon egzanp estanda asid amine ki gen gwoup chèn bò methyl.Gwoup R yo gen yon varyete de fòm, gwosè, chaj, ak reaktivite.Sa a pèmèt asid amine yo dwe gwoupe dapre pwopriyete chimik yo nan chenn bò yo.
Tablo abbreviyasyon komen asid amine ak pwopriyete yo
Non | Twa lèt kòd | Yon kòd lèt | Molekilè | Molekilè | Rezid | Pwa rès | 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 |
Asid aspartik | Asp | D | 133.11 | C4H7NO4 | C4H5NO3 | 115.09 | 1.88 | 9.60 | 3.65 | 2.77 |
Sistein | Cys | C | 121.16 | C3H7NO2S | C3H5NOS | 103.15 | 1.96 | 10.28 | 8.18 | 5.07 |
Asid glutamik | Glu | E | 147.13 | C5H9NO4 | C5H7NO3 | 129.12 | 2.19 | 9.67 | 4.25 | 3.22 |
Glutamin | Gln | Q | 146.15 | C5H10N2O3 | C5H8N2O2 | 128.13 | 2.17 | 9.13 | – | 5.65 |
Glisin | Gly | G | 75.07 | C2H5NO2 | C2H3NO | 57.05 | 2.34 | 9.60 | – | 5.97 |
Histidine | Li | 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 | – | – |
Isoleucine | Ile | I | 131.18 | C6H13NO2 | C6H11NO | 113.16 | 2.36 | 9.60 | – | 6.02 |
Leucine | Leu | L | 131.18 | C6H13NO2 | C6H11NO | 113.16 | 2.36 | 9.60 | – | 5.98 |
Lizin | Lys | K | 146.19 | C6H14N2O2 | C6H12N2O | 128.18 | 2.18 | 8.95 | 10.53 | 9.74 |
Metionin | Te rankontre | M | 149.21 | C5H11NO2S | C5H9NOS | 131.20 | 2.28 | 9.21 | – | 5.74 |
Fenilalanin | 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 |
Piroglutamatik | Glp | U | 139.11 | C5H7NO3 | C5H5NO2 | 121.09 | – | – | – | 5.68 |
Serine | Ser | S | 105.09 | C3H7NO3 | C3H5NO2 | 87.08 | 2.21 | 9.15 | – | 5.68 |
Treonin | Thr | T | 119.12 | C4H9NO3 | C4H7NO2 | 101.11 | 2.09 | 9.10 | – | 5.60 |
Triptofan | Trp | W | 204.23 | C11H12N2O2 | C11H10N2O | 186.22 | 2.83 | 9.39 | – | 5.89 |
Tirozin | Tyr | Y | 181.19 | C9H11NO3 | C9H9NO2 | 163.18 | 2.20 | 9.11 | 10.07 | 5.66 |
Valin | Val | V | 117.15 | C5H11NO2 | C5H9NO | 99.13 | 2.32 | 9.62 | – | 5.96 |
Asid amine yo se solid cristalline ki anjeneral idrosolubl epi sèlman ti kras disolubl nan solvang òganik.Solibilite yo depann de gwosè ak nati chèn bò a.Asid amine gen pwen k ap fonn trè wo, jiska 200-300 ° C.Lòt pwopriyete yo varye pou chak asid amine patikilye.
Tan pòs: Apr-19-2021