نتایج جستجو برای: malonyl coenzyme a decarboxylase
تعداد نتایج: 13436944 فیلتر نتایج به سال:
A novel mutant of Arabidopsis (Arabidopsis thaliana), having highly glossy inflorescence stems, postgenital fusion in floral organs, and reduced fertility, was isolated from an ethyl methanesulfonate-mutagenized population and designated glossyhead1 (gsd1). The gsd1 locus was mapped to chromosome 1, and the causal gene was identified as a new allele of Acetyl-Coenzyme A Carboxylase1 (ACC1), a g...
We have characterized two mutants of Escherichia coli in which fatty acid biosynthesis is adversely affected by elevated temperature. Under conditions which do not alter the activity of wild type cell-free extracts, virtually all of the malonyl coenzyme A-acyl carrier protein (ACP) transacylase and fatty acid synthetase activities present in mutant extracts are thermolabile. Malonyl transacylas...
3,4-Dihydroxyphenylalanine (Dopa) decarboxylase is a stereospecific pyridoxal 5'-phosphate (PLP)-dependent alpha-decarboxylase that converts L-aromatic amino acids into their corresponding amines. We now report that reaction of the enzyme with D-5-hydroxytryptophan or D-Dopa results in a time-dependent inactivation and conversion of the PLP coenzyme to pyridoxamine 5'-phosphate and PLP-D-amino ...
Molecular modeling analysis of charge density and heat of fornation by PM3 method as well as C, H NMR and 2D-NMR measurements of histidine (substrate) and some of its derivatives as histidine decarboxylase inhibitors were performed. It was established that the atom, usually nitrogen, which forms internal aldimine with pyridoxal5 -phosphate (PLP), (coenzyme), has negative and almost equal ...
ante by carboxylic acid would result if the equilibrium of Reaction 3 were significantly toward R(CHz), CO-S-CoA or if the latter disappeared in secondary reactions. In practice, acetylCoA was incubated with enzyme fractions with and without added carboxylic acids under the conditions described in Table I. At the end of the incubation period, 0.1 volume of 30% metaphosphoric acid was added, the...
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