Multienzyme System for Dihydroxyacetone Phosphate-Dependent Aldolase Catalyzed C—C Bond Formation from Dihydroxyacetone.
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چکیده
منابع مشابه
Multienzyme system for dihydroxyacetone phosphate-dependent aldolase catalyzed C-C bond formation from dihydroxyacetone.
A multienzyme system composed by recombinant dihydroxyacetone kinase from Citrobacter freundii, fuculose-1-phosphate aldolase and acetate kinase, allows a practical one-pot C-C bond formation catalysed by dihydroxyacetone phosphate-dependent aldolases from dihydroxyacetone and an aldehyde.
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It is generally accepted that the mechanism of enzyme activity includes a combination of enzyme and substrate. This concept forms the basis for the conventional kinetic analyses of enzymatic reactions (1). Direct evidence for the existence of enzyme-substrate combinations is as yet meager. The binding of pyridine nucleotide coenzymes as substrates to various dehydrogenases has been shown to res...
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Dihydroxyacetone phosphate acyl transferase (DHAP-AT), alkyl dihydroxyacetone phosphate synthase (alkyl-DHAP-synthase), and glycerol-3-phosphate acyltransferase (GPAT) activities were investigated under optimal assay conditions using highly purified organelle preparations. The data presented clearly indicate that GPAT activity was mainly localized in mitochondria and microsomes, whereas DHAP-AT...
متن کاملLoss of hydrogen from dihydroxyacetone phosphate during glyceryl ether synthesis.
In order to obtain information on the mechanism of ether bond formation in the synthesis of 0-alkyl lipids, a study was carried out to determine if there is a loss of hydrogen from carbon 3 of dihydroxyacetone phosphate (DHAP) (nonphosphorus-linked carbon) in the course of its incorporation into glyceryl ethers. Accordingly, a mixture of [1,3-3H2] DHAP and [I ,3-WJDHAP was prepared. In a micros...
متن کاملAcyl dihydroxyacetone phosphate: precursor of alkyl ethers.
1-0-Alkyl dihydroxyacetone phosphate is biosynthesised in guinea pig liver mitochondria and in rat brain microsomes by direct reaction of a long chain alcohol and acyl dihydroxyacetone phosphate. ATP and Mg* are stimulatory but coenzyme A is not necessary for the reaction. 1-0-Alkyl dihydroxyacetone phosphate (alkyl DHAP)l was shown to be biosynthesized from long chain alcohol and DHAP with ATP...
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ژورنال
عنوان ژورنال: ChemInform
سال: 2004
ISSN: 0931-7597,1522-2667
DOI: 10.1002/chin.200447149