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A5222
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Showing 1-30 of 43 results for "A5222" within Papers
Methods in molecular biology (Clifton, N.J.), 1887, 23-31 (2018-12-07)
Fermented foods produced using edible microorganisms have been consumed worldwide since ancient times. Microorganisms produce some healthy functional substances. Recently, many people have been attracted to the notion that D-body amino acids have healthy functional effects. D-body amino acids convert
Antioxidants & redox signaling, 27(7), 398-414 (2017-01-05)
Reactive sulfur species, including hydrogen sulfide (H In this study, we found that increased synaptic activity triggered sulfide generation and protein sulfhydration. Activity-triggered sulfide production was essential for N-methyl-D-aspartate subtype glutamate receptor (NMDAR)-dependent LTP via maintaining the availability of d-serine
D-AMINO ACID OXIDASE. 3. EFFECT OF PH.
Biochimica et biophysica acta, 96, 383-389 (1965-03-22)
Amino acids, 43(5), 1887-1894 (2012-08-07)
This paper discusses the application of a reagentless, selective microbiosensor as a useful alternative tool for monitoring D-serine in neural samples. The main components of the 125-Ī¼m-diameter disk biosensor were D-amino acid oxidase for D-serine sensitivity (linear region slope, 61
Journal of medicinal chemistry, 56(9), 3582-3592 (2013-04-10)
D-Amino acid oxidase (DAAO) catalyzes the oxidation of d-amino acids including d-serine, a coagonist of the N-methyl-d-aspartate receptor. We identified a series of 4-hydroxypyridazin-3(2H)-one derivatives as novel DAAO inhibitors with high potency and substantial cell permeability using fragment-based drug design.
Bioscience trends, 6(5), 241-247 (2012-12-12)
An easy fluorimetric assay for measuring D-amino acid oxidase (DAAO) activity by using one of the D-amino acids--D-kynurenine (D-KYN)--as a substrate was applied to assess DAAO activity in the cerebrum, cerebellum, and brainstem of Sprague-Dawley (SD) male rats. In this
Nature communications, 4, 1366-1366 (2013-01-24)
In eukaryotes, hydrogen sulphide acts as a signalling molecule and cytoprotectant. Hydrogen sulphide is known to be produced from L-cysteine by cystathionine Ī²-synthase, cystathionine Ī³-lyase and 3-mercaptopyruvate sulfurtransferase coupled with cysteine aminotransferase. Here we report an additional biosynthetic pathway for
Journal of medicinal chemistry, 56(9), 3710-3724 (2013-05-02)
We characterized the mechanism and pharmacodynamics of five structurally distinct inhibitors of d-amino acid oxidase. All inhibitors bound the oxidized form of human enzyme with affinity slightly higher than that of benzoate (Kd ā 2-4 Ī¼M). Stopped-flow experiments showed that
Indian journal of biochemistry & biophysics, 49(4), 272-278 (2012-10-20)
D-amino acid oxidase (DAAO) is biotechnologically relevant enzyme that is used in various food and pharmaceutical industries. DAAO from the yeast Trigonopsis variabilis is an important agent for use in commercial applications because of its high activity with cephalosporin C
Journal of psychopharmacology (Oxford, England), 24(7), 1055-1067 (2009-03-31)
D-Amino acid oxidase (DAO) has been established to be involved in the oxidation of D-serine, an allosteric activator of the N-methyl-D-aspartate-type glutamate receptor in the brain, and to be associated with the onset of schizophrenia. The effect of risperidone, a
JAMA psychiatry, 70(12), 1267-1275 (2013-10-04)
In addition to dopaminergic hyperactivity, hypofunction of the N-methyl-d-aspartate receptor (NMDAR) has an important role in the pathophysiology of schizophrenia. Enhancing NMDAR-mediated neurotransmission is considered a novel treatment approach. To date, several trials on adjuvant NMDA-enhancing agents have revealed beneficial
Biosensors & bioelectronics, 47, 350-355 (2013-04-23)
A sensitive d-amino acid oxidase (DAAO)/peroxidase (POD) bienzyme biosensor is constructed, in which pentacyanoferrate-bound poly(1-vinylimidazole) polymer (PVI[Fe(CN)5]) is selected as a mediator. Reductive current of PVI[Fe(CN)5] related to the H2O2 concentration generated in the DAAO reaction was measured at -0.1V
Amino acids, 43(5), 1811-1821 (2012-08-16)
D-Amino acids are stereoisomers of L-amino acids. They are often called unnatural amino acids, but several D-amino acids have been found in mammalian brains. Among them, D-serine is abundant in the forebrain and functions as a co-agonist of NMDA receptors
Journal of medicinal chemistry, 56(5), 1894-1907 (2013-02-09)
D-amino acid oxidase (DAO) is a degradative enzyme that is stereospecific for D-amino acids, including D-serine and D-alanine, which are potential coagonists of the N-methyl-D-aspartate (NMDA) receptor. Dysfunction of NMDA receptor-mediated neurotransmission has been implicated in the onset of various
Amino acids, 43(5), 1905-1918 (2012-09-22)
D-Amino acid oxidase (DAAO), a FAD-dependent peroxisomal flavoenzyme that catalyzes oxidation of D-amino acids to hydrogen peroxide, is distributed in the spinal cord almost exclusively expressed within astrocytes. The present study aims to explore potential contributions of spinal DAAO to
Neuroscience letters, 526(1), 74-78 (2012-08-14)
Incorporation profiles of d-Trp and l-Trp into the striatum following intraperitoneal (i.p.) administration of d-Trp or l-Trp in male Sprague-Dawley rats (100mg/kg) were investigated by using a brain microdialysis technique. Alterations in the extracellular dopamine (DA) concentration in the rat
D-AMINO ACID OXIDASE. I. DISSOCIATION AND RECOMBINATION OF THE HOLOENZYME.
Biochimica et biophysica acta, 96, 357-367 (1965-03-22)
Glutamine 89 is a key residue in the allosteric modulation of human serine racemase activity by ATP.
Scientific reports, 8(1), 9016-9016 (2018-06-15)
Serine racemase (SR) catalyses two reactions: the reversible racemisation of L-serine and the irreversible dehydration of L- and D-serine to pyruvate and ammonia. SRs are evolutionarily related to serine dehydratases (SDH) and degradative threonine deaminases (TdcB). Most SRs and TdcBs
Plant physiology, 160(4), 2219-2226 (2012-10-23)
Dual-conditional positive/negative selection markers are versatile genetic tools for manipulating genomes. Plastid genomes are relatively small and conserved DNA molecules that can be manipulated precisely by homologous recombination. High-yield expression of recombinant products and maternal inheritance of plastid-encoded traits make
Biochemistry. Biokhimiia, 77(10), 1181-1189 (2012-11-20)
Natural D-amino acid oxidases (DAAO) are not suitable for selective determination of D-amino acids due to their broad substrate specificity profiles. Analysis of the 3D-structure of the DAAO enzyme from the yeast Trigonopsis variabilis (TvDAAO) revealed the Phe258 residue located
Amino acids, 43(5), 1851-1860 (2012-08-14)
Far from our initial view of D-amino acids as being limited to invertebrates, they are now considered active molecules at synapses of mammalian central and peripheral nervous systems, capable of modulating synaptic communication within neuronal networks. In particular, experimental data
Cell, 178(5), 1205-1221 (2019-08-24)
A hallmark feature of inflammation is the orchestrated recruitment of neutrophils from the bloodstream into inflamed tissue. Although selectins and integrins mediate recruitment in many tissues, they have a minimal role in the lungs and liver. Exploiting an unbiased inĀ vivo
The FEBS journal, 281(3), 708-723 (2013-11-19)
Human D-amino acid oxidase (EC 1.4.3.3; hDAAO) is a peroxisomal flavoenzyme significantly enriched in the mammalian brain. hDAAO has been proposed to play (with serine racemase; EC 5.1.1.18) an essential role in the catabolism of D-serine, an 'atypical' key signalling
Enzyme and microbial technology, 52(1), 13-19 (2012-12-04)
Oligolamellar phospholipid vesicles incorporated with d-amino acid oxidase from porcine kidney (OV-DAO) were prepared by encapsulating pre-formed enzyme-bound unilamellar vesicles (UV-DAO) with bilayers of 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC). The bilayer of UV-DAO was composed of POPC, 30 mol% of cholesterol and 15
FEBS letters, 587(17), 2721-2724 (2013-05-01)
Leonor Michaelis spent the years of 1922-1926 as Professor of Biochemistry of the Aichi Medical College (now Graduate School of Medicine, Nagoya University) in Nagoya, Japan. Michaelis succeeded in gathering many bright young biochemists from all over Japan into his
Metabolites, 12(9) (2022-09-24)
The pancreatic islets of Langerhans are clusters of cells that function as endocrine units synthesizing and releasing insulin and a range of additional peptide hormones. The structural and chemical characteristics of islets change during type 2 diabetes development. Although a
A simple purification procedure of D-amino-acid oxidase from Candida guilliermondii H(see symbol)-4.
Mikrobiologiia, 81(4), 539-545 (2012-11-20)
D-amino-acid oxidase (EC 1.4.3.3) was purified about 1480-fold from the yeast Candida guilliermondii H(see symbol)-4 using chromatofocusing method. The purification procedure gave an enzyme preparation which is greater than 90% homogenous on SDS-polyacrylamide gels with a specific activity of 11.54
Biochimica et biophysica acta, 1832(3), 400-410 (2012-12-12)
Considering the key role of d-serine in N-methyl-d-aspartate receptor-mediated neurotransmission, it is highly relevant to define the role that enzymes play in d-serine synthesis and degradation. In particular, the details of regulation of the d-serine catabolic human enzyme d-amino acid
BMC medical genetics, 14, 33-33 (2013-03-19)
Recent studies supported associations between four NMDA-receptor-mediated signalling genes (D-amino acid oxidase, DAO; D-amino acid oxidase activator, DAOA; protein phosphatase 3 catalytic subunit gamma isoform, PPP3CC; dystrobrevin-binding protein 1, DTNBP1) and schizophrenia susceptibility, even though with contrasting results. In an
Amino acids, 43(5), 1833-1850 (2012-08-07)
Since D-amino acids were identified in mammals, D-serine has been one of the most extensively studied "unnatural amino acids". This brain-enriched transmitter-like molecule plays a pivotal role in the human central nervous system by modulating the activity of NMDA receptors.
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