نتایج جستجو برای: dialkylacetylene dicarboxylate
تعداد نتایج: 1576 فیلتر نتایج به سال:
The histidine protein kinase DcuS of Escherichia coli senses C(4)-dicarboxylates and citrate by a periplasmic domain. The closely related sensor kinase CitA binds citrate, but no C(4)-dicarboxylates, by a homologous periplasmic domain. CitA is known to bind the three carboxylate and the hydroxyl groups of citrate by sites C1, C2, C3, and H. DcuS requires the same sites for C(4)-dicarboxylate se...
C4-dicarboxylates are important molecules for the human pathogen C.jejuni, as they are used as carbon and electron acceptor molecules, as sugars cannot be utilized by this microaerophilic organism. Based on the genome analysis, C. jejuni may possess five different C4-dicarboxylate transporters: DctA, DcuA, DcuB, and two homologs of DcuC. Here, we investigated the regulation and function of vari...
Recent studies showed that 1,4-dihydropyridine-3,5-dicarbamoyl derivatives with lipophilic groups have significant antitubercular activity. In this study, we have synthesized new derivatives of 1,4-dihydropyridines bearing carbmethoxy and carbethoxy group at C-3 and C-5 of the 1,4-dihydropyridine ring. In addition, 1H-pyrazole ring is substituted at C-4 position. These analogues were synthesize...
We report direct observation of an entropic effect in determining the folding of a linear dicarboxylate dianion with a flexible aliphatic chain [(-)O(2)C-(CH(2))(6)-CO(2)(-)] by photoelectron spectroscopy as a function of temperature (18-300 K) and degree of solvation from 1 to 18 water molecules. A folding transition is observed to occur at 16 solvent water molecules at room temperature and at...
The metabolic conversion of dicarboxylic acids into succinate and other gluconeogenic intermediates in rat liver homogenates was investigated using [1,2,4-13C4]dodecanedioic acid as tracer. Isotope enrichments in 3-hydroxybutyrate, succinate, fumarate, and malate, as well as dicarboxylates (dodecanedioic, sebacic, suberic, and adipic acids) were measured with selected ion monitoring capillary c...
Reactions of the photorespiratory pathway of C(3) plants are found in three subcellular organelles. Transport processes are, therefore, particularly important for maintaining the uninterrupted flow of carbon through this pathway. We describe here the isolation and characterization of a photorespiratory mutant of Arabidopsis thaliana defective in chloroplast dicarboxylate transport. Genetic anal...
1. N-Ethylmaleimide inhibited the influx and efflux of P(i) in rat liver mitochondria. 2. The efflux was stimulated by either succinate or malate in the presence of N-ethylmaleimide, and this stimulation was reversed by 2-n-butylmalonate. 2-Oxoglutarate and citrate, even in the presence of low concentrations of malate, were relatively ineffective in stimulating efflux of P(i) under these condit...
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