L-Valine |72-18-4 ib
Khoom Description
Valine (abbreviated li Val los yog V) yog α-amino acid nrog cov tshuaj formula HO2CCH(NH2)CH(CH3)2.L-Valine yog ib qho ntawm 20 proteinogenic amino acids.Nws cov codons yog GUU, GUC, GUA, thiab GUG.Qhov tseem ceeb amino acid no yog cais raws li nonpolar.Tib neeg cov khoom noj khoom haus yog cov khoom noj muaj protein ntau xws li nqaij, khoom noj siv mis, cov khoom soy, taum thiab legumes.Nrog rau leucine thiab isoleucine, valine yog cov saw hlau amino acid.Nws muaj npe tom qab cog valerian.Hauv kab mob mob-hlwb, valine hloov pauv rau hydrophilic amino acid glutamic acid hauv hemoglobin.Vim tias valine yog hydrophobic, hemoglobin yog qhov ua rau txawv txav.
Specification
| Kev sib hloov tshwj xeeb | +27.6–+29.0° |
| Cov hlau hnyav | = <10ppm |
| Cov ntsiab lus dej | = <0.20% |
| Residue ntawm ignition | =<0.10% |
| soj ntsuam | 99.0-100.5% |
| PH | 5.0 ~ 6.5 hli |
