Results 71 to 80 of about 174,380 (258)

Mutations in PROSC Disrupt Cellular Pyridoxal Phosphate Homeostasis and Cause Vitamin B6-Dependent Epilepsy [PDF]

open access: yes, 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.
Champion, Mike   +19 more
core   +1 more source

Balanced Expression of the Diiron Oxygenase BioE Is Essential for Biotin Homeostasis in Elizabethkingia meningoseptica

open access: yesAdvanced Science, EarlyView.
BioE is a new diiron oxygenase that catalyzes the conversion of long‐chain acyl groups into pimeloyl thioester, initiating biotin synthesis. The overexpression of EmBioE disrupts lipid metabolic homeostasis, requiring repressor BioL to maintain a balance between long‐chain fatty acids and biotin synthesis.
Meng Zhang   +9 more
wiley   +1 more source

Glutamate in Pyridoxine-Dependent Epilepsy

open access: yesPediatric Neurology Briefs, 1994
Cerebrospinal fluid levels of glutamate, g-aminobutyric acid, and pyridoxal-5-phosphate examined in a patient with pyridoxine dependency while on and off vitamin B6 treatment are reported from Universitat Munchen, and Universitats-Nervenklinik, Wurzburg,
J Gordon Millichap
doaj   +1 more source

Engineering a pyridoxal 5’-phosphate supply for cadaverine production by using Escherichia coli whole-cell biocatalysis

open access: yesScientific Reports, 2015
Although the routes of de novo pyridoxal 5′-phosphate (PLP) biosynthesis have been well described, studies of the engineering of an intracellular PLP supply are limited and the effects of cellular PLP levels on PLP-dependent enzyme-based whole-cell ...
Weichao Ma   +6 more
semanticscholar   +1 more source

Synthesis and Structure-Activity Relationships of Pyridoxal-6-arylazo-5'-phosphate and Phosphonate Derivatives as P2 Receptor Antagonists. [PDF]

open access: yes, 1998
Novel analogs of the P2 receptor antagonist pyridoxal-5'-phosphate-6-phenylazo-2',4'-disulfonate (PPADS) were synthesized. Modifications were made through functional group substitution on the sulfophenyl ring and at the phosphate moiety through the ...
Boyer, José L.   +13 more
core   +3 more sources

Combining Electrochemical Reduction with Biosynthesis for Directed Conversion of CO2 into a Library of C3 Chemicals

open access: yesAdvanced Science, EarlyView.
In the H‐type electrolytic cell, carbon dioxide is reduced to acetic acid via electro‐microbial catalysis. The simply processed acetic acid is further converted through biological fermentation into high‐value‐added products, including acrylic acid, L‐lactic acid, and β‐alanine.
Kaixing Xiao   +8 more
wiley   +1 more source

GABA Synthesis and Pyridoxine Seizures

open access: yesPediatric Neurology Briefs, 1994
A reduction in pyridoxal-5-phosphate (PLP) dependent enzyme, glutamic acid decarboxylase (GAD),which synthesizes GABA, is reported in a 3 month-old infant with seizures responsive to pyridoxine treated at University of California, Davis.
J Gordon Millichap
doaj   +1 more source

PLPMDB: Pyridoxal-5′-phosphate dependent enzymes mutants database [PDF]

open access: yesBioinformatics, 2004
Abstract Summary: The searchable mutant database PLPMDB has been developed to provide rapid and simple access to relevant mutant information on pyridoxal-5′-phosphate dependent enzymes. All data have been extracted from publications and publicly available databases, then organized in a relational database to enable searching via a web ...
openaire   +3 more sources

Pyridoxal 5′-Phosphate Inhibition of Adenovirus DNA Polymerase [PDF]

open access: yesJournal of Biological Chemistry, 1996
Pyridoxal phosphate modification of adenovirus DNA polymerase results in loss of DNA polymerase activity, whereas the 3' --> 5' exonuclease activity is unaffected. Inhibition by pyridoxal phosphate is time-dependent, displays saturation kinetics, and is reversible in the presence of excess primary amine unless the pyridoxal phosphate-enzyme adduct is ...
A, Monaghan, R T, Hay
openaire   +2 more sources

Dietary Mannan‐Rich Fractions Attenuate Weaning Stress in Piglets via Modulating Gut Microbiota and TLR5/NF‐κB Signaling

open access: yesAnimal Research and One Health, EarlyView.
This study aimed to investigate the potential of a mannan‐rich fraction (MRF) as a dietary intervention to alleviate weaning stress in piglets. Our results revealed that MRF could alleviate weaning stress by modulating the gut microbiota and the TLR5/NF‐κB signaling pathway, offering a novel and sustainable alternative to antibiotic use in swine ...
Yutong Lu   +8 more
wiley   +1 more source

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