巴豆
巴豆结构式
|
常用名 | 巴豆 | 英文名 | Levocarnitine impurity A |
|---|---|---|---|---|
| CAS号 | 927-89-9 | 分子量 | 143.184 | |
| 密度 | N/A | 沸点 | N/A | |
| 分子式 | C7H13NO2 | 熔点 | N/A | |
| MSDS | N/A | 闪点 | N/A |
|
Effect of salt stress on crotonobetaine and D(+)-carnitine biotransformation into L(-)-carnitine by resting cells of Escherichia coli.
J. Basic Microbiol. 43(4) , 259-68, (2003) The biotransformation of crotonobetaine and D(+)-carnitine into L(-)-carnitine is affected by salt stress in the resting cells of E. coli O44 K74 and the transformed E. coli K38 pT7-5KE32. A yield of 65 and 80% of L(-)-carnitine, respectively, were obtained w... |
|
|
Biotransformation of crotonobetaine to L(-)-carnitine in Proteus sp.
Arch. Microbiol. 175(5) , 353-9, (2001) Two proteins, component I (CI) and component II (CII), catalyze the biotransformation of crotonobetaine to L(-)-carnitine in Proteus sp. CI was purified to electrophoretic homogeneity from cell-free extracts of Proteus sp. The N-terminal amino acid sequence o... |
|
|
Molecular characterization of the cai operon necessary for carnitine metabolism in Escherichia coli.
Mol. Microbiol. 13(5) , 775-86, (1994) The sequence encompassing the cai genes of Escherichia coli, which encode the carnitine pathway, has been determined. Apart from the already identified caiB gene coding for the carnitine dehydratase, five additional open reading frames were identified. They b... |
|
|
[Metabolism of L-carnitine in enterobacteria].
Z. Allg. Mikrobiol. 20(9) , 591-4, (1980)
|
|
|
Salt stress effects on the central and carnitine metabolisms of Escherichia coli.
Biotechnol. Bioeng. 96(4) , 722-37, (2007) The aim was to understand how interaction of the central carbon and the secondary carnitine metabolisms is affected under salt stress and its effect on the production of L-carnitine by Escherichia coli. The biotransformation of crotonobetaine into L-carnitine... |
|
|
High-density Escherichia coli cultures for continuous L(-)-carnitine production.
Appl. Microbiol. Biotechnol. 51(6) , 760-4, (1999) The use of a biological procedure for L-carnitine production as an alternative to chemical methods must be accompanied by an efficient and highly productive reaction system. Continuous L-carnitine production from crotonobetaine was studied in a cell-recycle r... |
|
|
Link between primary and secondary metabolism in the biotransformation of trimethylammonium compounds by escherichia coli.
Biotechnol. Bioeng. 84(6) , 686-99, (2003) The aim of this work was to understand the steps controlling the process of biotransformation of trimethylamonium compounds into L(-)-carnitine by Escherichia coli and the link between the central carbon or primary and the secondary metabolism expressed. Thus... |
|
|
[Reduction of L-carnitine to gamma-butyrobetaine by Escherichia coli].
Z. Allg. Mikrobiol. 19(10) , 753-8, (1979)
|
|
|
Modeling of the biotransformation of crotonobetaine into L-(-)-carnitine by Escherichia coli strains.
Biotechnol. Bioeng. 77(7) , 764-75, (2002) A simple unstructured model, which includes carbon source as the limiting and essential substrate and oxygen as an enhancing substrate for cell growth, has been implemented to depict cell population evolution of two Escherichia coli strains and the expression... |
|
|
Involvement of coenzyme A esters and two new enzymes, an enoyl-CoA hydratase and a CoA-transferase, in the hydration of crotonobetaine to L-carnitine by Escherichia coli.
Biochemistry 40(37) , 11140-8, (2001) Two proteins (CaiB and CaiD) were found to catalyze the reversible biotransformation of crotonobetaine to L-carnitine in Escherichia coli in the presence of a cosubstrate (e.g., gamma-butyrobetainyl-CoA or crotonobetainyl-CoA). CaiB (45 kDa) and CaiD (27 kDa)... |