Results 191 to 200 of about 60,073 (254)

Diversity-oriented photobiocatalytic synthesis via stereoselective three-component radical coupling. [PDF]

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Zhang C   +8 more
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The interactions between biogenic amines and pyridoxal, pyridoxal phosphate, and pyridoxal kinase

Archives of Biochemistry and Biophysics, 1972
Abstract The effect of biogenic amines on pyridoxal kinase activity has been investigated in vitro . Experiments with a purified beef brain pyridoxal kinase indicate that 3,4-dihydroxyphenylalanine (dopa), dopamine, norepinephrine, and serotonin inhibit the reaction, while tyrosine, tryptophan, and 5-hydroxytryptophan (5-HTP) have no effect. However,
J T, Neary   +3 more
openaire   +2 more sources

Fluorometric assay of pyridoxal and pyridoxal 5′-phosphate

Analytical Biochemistry, 1979
Abstract A new and very sensitive fluorometric method for the determination of pyridoxal and pyridoxal 5′-phosphate is reported. The specificity is based on the reductive amination of pyridoxal and its 5′-phosphate with methyl anthranilate and sodium cyanoborohydride at pH 4,5 to 5,0.
M S, Chauhan, K, Dakshinamurti
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On the mechanism of Escherichia coli pyridoxal kinase inhibition by pyridoxal and pyridoxal 5′-phosphate

Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics, 2015
Pyridoxal 5'-phosphate (PLP), the catalytically active form of vitamin B6, plays a crucial role in several cellular processes. In most organisms, PLP is recycled from nutrients and degraded B6-enzymes in a salvage pathway that involves pyridoxal kinase (PLK), pyridoxine phosphate oxidase and phosphatase activities.
DI SALVO, Martino Luigi   +6 more
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Pyridoxal Kinase

Annals of the New York Academy of Sciences, 1990
Chymotryptic digestion of sheep brain pyridoxal kinase, a dimer of identical subunits each of 40 kDa, yields two fragments of 24 and 16 kDa with concomitant loss of catalytic activity. These fragments were separated by HPLC and used for binding studies with ATP and pyridoxal analogues.
J E, Churchich, Y T, Kim
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Inhibition of gaba binding by pyridoxal and pyridoxal phosphate

International Journal of Biochemistry, 1980
Abstract 1. 1. GABA exerts its neuroinhibitory effects by binding to a specific receptor on the post-synaptic membrane. 2. 2. Since both GABA and vitamin B 6 have been implicated in convulsion, the effects of B 6 vitamers on Na-independent binding of GABA was investigated by incubating synaptic membrane suspensions for 5 min at 4°C in 1 ml ...
M, Ebadi, B, Klangkalya, J D, Deupree
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Mutations in PROSC Disrupt Cellular Pyridoxal Phosphate Homeostasis and Cause Vitamin-B6-Dependent Epilepsy [PDF]

open access: yesAmerican Journal of Human Genetics, 2016
Pyridoxal 5'-phosphate (PLP), the active form of vitamin B6, functions as a cofactor in humans for more than 140 enzymes, many of which are involved in neurotransmitter synthesis and degradation.
Laurence Prunetti   +2 more
exaly   +3 more sources

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