D-Alanine CAS: 338-69-2 99% Dawb crystalline hmoov
| Catalog Number | xwm 90325 |
| Khoom npe | D-Alanine |
| CAS | 338-69-2 : kuv |
| Molecular Formula | C3H7NO2 |
| Molecular Luj | 89.09 ib |
| Cov ntaub ntawv khaws cia | Ambient |
| Harmonized tariff Code | 29224985 ib |
Khoom Specification
| Qhov tshwm sim | Dawb crystalline hmoov |
| Assay | 98 - 101% |
| Kev sib hloov tshwj xeeb | -14.3 - 15.3 Nws |
| Cov hlau hnyav | <10ppm |
| Poob rau ziab | <0.20% |
| Hlau | <2 ppm |
| Residue ntawm Ignition | <0.20% |
| Cl | <0.10% |
Txoj kev tshawb no tsom mus rau alanine racemase noob (alr-2), uas koom nrog hauv kev sib txuas ntawm d-alanine uas tsim cov pob txha ntawm phab ntsa ntawm tes.Ib qho ruaj khov alr-2 knockout mutant ntawm Aeromonas hydrophila HBNUAh01 tau tsim.Thaum cov mutant tau ntxiv nrog d-alanine, kev loj hlob tsis cuam tshuam;deprivation ntawm d-alanine ua rau txoj kev loj hlob ntes ntawm starved mutant hlwb, tab sis tsis cell lysis.Tsis muaj kev ua si alanine racemases raug kuaj pom hauv kab lis kev cai ntawm mutant.Tsis tas li ntawd, ib qho kev ntsuam xyuas membrane permeability pom tau tias muaj kev puas tsuaj rau phab ntsa ntawm tes thaum d-alanine tshaib plab.Tsis muaj kev puas tsuaj zoo li no tau pom nyob rau hauv hom tsiaj qus thaum kab lis kev cai.Kev txheeb xyuas thiab xa cov tshuab hluav taws xob hluav taws xob tsom xam pom pom qhov tsis txaus ntawm lub hnab ntawv ntawm tes thiab perforation ntawm phab ntsa ntawm tes.Los ntawm UV-absorbing tshuaj los ntawm cov mutants kuj tau pom.Yog li, ib feem ntawm cov mutants thiab lawv txoj kev ywj pheej ntawm d-alanine rau txoj kev loj hlob qhia tau hais tias inactivation ntawm alr-2 tsis txwv auxo trophic yuav tsum tau rau d-alanine.© FEMS 2015. All rights reserved.
