L-Leucine |61-90-5 : kuv
Khoom Description
Leucine (lub npe hu ua Leu los yog L) yog ib txoj saw caj dabα-amino acid nrog cov tshuaj formula HO2CCH(NH2)CH2CH(CH3)2.Leucine yog cais raws li hydrophobic amino acid vim nws aliphatic isobutyl sab saw.Nws yog encoded los ntawm 6 codons (UUA, UUG, CUU, CUC, CUA, thiab CUG) thiab yog ib qho tseem ceeb ntawm cov subunits nyob rau hauv ferritin, astacin thiab lwm yam 'buffer' proteins.Leucine yog ib qho tseem ceeb amino acid, txhais tau hais tias tib neeg lub cev tsis tuaj yeem tsim nws, thiab nws, yog li ntawd, yuav tsum tau noj.
Specification
| Yam khoom | Index |
| Lub zog tshwj xeeb rotatory [α] D20 | +14.9º 16º |
| Qhov tseeb | > = 98.0% |
| Chloride [CL] | =<0.02% |
| Sulfate [SO4] | =<0.02% |
| Residue ntawm ignition | = <0.10% |
| Hlau ntsev [Fe] | = <10 ppm |
| Heavy hlau [Pb] | = <10 ppm |
| Arsenic ntsev | = <1 ppm |
| Ammonium ntsev [NH4] | =<0.02% |
| Lwm cov amino acid | = <0.20% |
| Poob rau ziab | = <0.20% |
| Cov ntsiab lus | 98.5 100.5% |
