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Showing 1-30 of 47 results for "K401" within Papers
Andreas Schedlbauer et al.
Journal of biomolecular NMR, 42(2), 111-127 (2008-09-03)
Direct methods in NMR based structure determination start from an unassigned ensemble of unconnected gaseous hydrogen atoms. Under favorable conditions they can produce low resolution structures of proteins. Usually a prohibitively large number of NOEs is required, to solve a
Kechun Zhang et al.
Proceedings of the National Academy of Sciences of the United States of America, 107(14), 6234-6239 (2010-03-25)
The dramatic increase in healthcare cost has become a significant burden to the world. Many patients are denied the accessibility of medication because of the high price of drugs. Total biosynthesis of chiral drug intermediates is an environmentally friendly approach
Shota Atsumi et al.
Applied and environmental microbiology, 74(24), 7802-7808 (2008-10-28)
Biofuels synthesized from renewable resources are of increasing interest because of global energy and environmental problems. We have previously demonstrated production of higher alcohols from Escherichia coli using a 2-keto acid-based pathway. Here, we took advantage of the growth phenotype
K Yaegaki et al.
Journal of periodontology, 63(9), 783-789 (1992-09-01)
The amounts of volatile sulfur compounds (VSC) and methyl mercaptan/hydrogen sulfide ratio in mouth air from patients with periodontal involvement were 8 times greater than those of control subjects. Our studies demonstrated that, in patients with periodontal disease: 1) the
Lieven Goossens
Journal of biosciences, 36(2), 235-241 (2011-06-10)
Metallothioneins (MTs), a low-mass class of metalloproteins, are characterized by a high thiolate sulphur and metal content. MTs are involved in metal homeostasis and heavy metal detoxification, and are efficient scavengers of free radicals. This article describes zinc release from
Christopher P Phenix et al.
Biochemistry, 47(30), 7779-7781 (2008-07-09)
MosA, a dihydrodipicolinate synthase (DHDPS) from Sinorhizobium meliloti L5-30, catalyzes a class I aldolase reaction that is allosterically inhibited by (S)-lysine. The thermodynamics of (S)-lysine binding to apoenzyme, and to enzyme saturated with pyruvate or with 2-oxobutyrate, are evaluated here
Bastian Blombach et al.
Applied and environmental microbiology, 75(2), 419-427 (2008-12-03)
The influence of acetohydroxy acid synthase (AHAS) on L-lysine production by Corynebacterium glutamicum was investigated. An AHAS with a deleted C-terminal domain in the regulatory subunit IlvN was engineered by truncating the ilvN gene. Compared to the wild-type AHAS, the
Satomi Ito et al.
Bioscience, biotechnology, and biochemistry, 72(9), 2411-2414 (2008-09-09)
A methioninase inhibitor from Myrsine seguinii was purified and identified as myrsinoic acid B. Its inhibitory activities as to crude methioninase from periodontal bacteria such as Fusobacterium nucleatum, Porphyromonas gingivalis, and Treponema denticola were determined. The IC50 values were 10.5
Three-component assembly and divergent ring-expansion cascades of functionalized 2-iminooxetanes.
Weijun Yao et al.
Angewandte Chemie (International ed. in English), 49(48), 9210-9214 (2010-10-22)
Hongbo Ling et al.
Biochemical and biophysical research communications, 361(1), 196-201 (2007-07-31)
Nikkomycins are peptidyl nucleoside antibiotics with potent activities against phytopathogenic and human pathogenic fungi. The sanM and sanN genes are required for the nikkomycin biosynthesis of Streptomyces ansochromogenes. In the present study, interaction between SanM and SanN was identified by
Saad S El-Maraghy et al.
Heliyon, 6(7), e04384-e04384 (2020-07-17)
There is increasing evidence that rhizosphere microbes contribute to the stress mitigation process, but the mechanisms of this plant-microbe interaction are not yet understood. Siderophores-producing microorganisms have been considered important for enhancing metal tolerance in plants. In this study, rhizosphere
Chaitanya Kumar Jha et al.
Journal of basic microbiology, 52(3), 285-295 (2011-09-29)
Decreased levels of ACC (1-aminocyclopropane-1-carboxylic acid) result in lower levels of endogenous ethylene, which eliminate the potentially inhibitory effects of stress-induced higher ethylene concentrations. It is worth noting the substantial ability of the bacterial species to colonize different environments, including
Hsien-Chung Tseng et al.
Microbial cell factories, 9, 96-96 (2010-11-30)
The ability to synthesize chiral building block molecules with high optical purity is of considerable importance to the fine chemical and pharmaceutical industries. Production of one such compound, 3-hydroxyvalerate (3HV), has previously been studied with respect to the in vivo
Chao Gao et al.
Bioresource technology, 102(7), 4595-4599 (2011-02-08)
Optically active D-2-hydroxybutanoate is an important building block intermediate for medicines and biodegradable poly(2-hydroxybutanoate). Kinetic resolution of racemic 2-hydroxybutanoate may be a green and desirable alternative for D-2-hydroxybutanoate production. In this work, D-2-hydroxybutanoate at a high concentration (0.197 M) and
Caroline Knoll et al.
Applied microbiology and biotechnology, 89(4), 1051-1060 (2010-10-06)
Sulphur-containing compounds in wine have been extensively studied because of their effect on wine flavour and quality. In this study, an enzyme that degrades sulphur-containing amino acids was cloned and characterised from two Oenococcus oeni strains of oenological origins. The
Jin-Ho Kang et al.
The Plant cell, 18(11), 3303-3320 (2006-11-07)
Threonine deaminase (TD) catalyzes the conversion of Thr to alpha-keto butyrate in Ile biosynthesis; however, its dramatic upregulation in leaves after herbivore attack suggests a role in defense. In Nicotiana attenuata, strongly silenced TD transgenic plants were stunted, whereas mildly
F Rocchiccioli et al.
Biomedical mass spectrometry, 11(1), 24-28 (1984-01-01)
Quantification of 2-ketoglutaric acid in plasma and cerebrospinal fluid as its O-trimethylsilyl++-quinoxalinol derivative by gas chromatography chemical ionization mass spectrometry is described with benzoylformic acid as internal standard. This technique, with ammonia as reactant gas, only detects the protonated molecular
W Yang et al.
Clinica chimica acta; international journal of clinical chemistry, 145(2), 173-182 (1985-01-30)
A pair of siblings with clinical symptoms of cyclic vomiting and ketoacidosis were found to have a biochemical triad of normoglycemia, ketoacidosis and elevated levels of alpha-hydroxy- and alpha-aminobutyrate in plasma and urine. Methionine loading studies in both sibs produced
Randy M Drevland et al.
Journal of bacteriology, 189(12), 4391-4400 (2007-04-24)
The archaeon Methanocaldococcus jannaschii uses three different 2-oxoacid elongation pathways, which extend the chain length of precursors in leucine, isoleucine, and coenzyme B biosyntheses. In each of these pathways an aconitase-type hydrolyase catalyzes an hydroxyacid isomerization reaction. The genome sequence
Synthesis of 2-(Quinoxalin-2-ylamino-benzotriazolyl) Pentanedioic Derivatives as Potential Anti-Folate Agents
Briguglio I, et al.
Journal of Heterocyclic Chemistry, 53, 1721-1737 (2016)
Jong-Shik Shin et al.
Biotechnology letters, 31(10), 1595-1599 (2009-06-24)
Asymmetric synthesis of an unnatural amino acid was demonstrated by omega-transaminase from Vibrio fluvialis JS17. L-2-Aminobutyric acid was synthesized from 2-oxobutyric acid and benzylamine with an enantiomeric excess higher than 99%. The reaction showed severe product inhibition by benzaldehyde, which
Eligio F Iannetti et al.
Cell death & disease, 9(11), 1135-1135 (2018-11-16)
Cell models of mitochondrial complex I (CI) deficiency display activation of glycolysis to compensate for the loss in mitochondrial ATP production. This adaptation can mask other relevant deficiency-induced aberrations in cell physiology. Here we investigated the viability, mitochondrial morphofunction, ROS
Wen Zhang et al.
Bioresource technology, 110, 719-722 (2012-02-22)
2-Oxobutyrate (2-OBA) is an important intermediate with many applications in the drug and chemical industries. l-Threonine, an industrial fermentation product, could be used as a suitable starting material for the 2-OBA production. In this study, whole cells of Pseudomonas stutzeri
Fabrication of a microcapsule extinguishing agent with a core-shell structure for lithium-ion battery fire safety
Zhang W, et al.
Materials Advances, 2, 4634-4642 (2021)
Nora Weber et al.
Microbial cell factories, 16(1), 51-51 (2017-03-25)
Saccharomyces cerevisiae (baker's yeast) has great potential as a whole-cell biocatalyst for multistep synthesis of various organic molecules. To date, however, few examples exist in the literature of the successful biosynthetic production of chemical compounds, in yeast, that do not
Synthesis of potential chemotherapic quinoxalinone derivatives by biocatalysis or microwave-assisted Hinsberg reaction
Gris J, et al.
Tetrahedron Letters, 49, 1053-1056 (2008)
Shufen Huang et al.
Journal of molecular biology, 396(3), 708-718 (2009-12-08)
In recent years, increased interest has been directed towards hydrogen sulfide (H2S) as the third gasotransmitter and its role in various diseases. Cystathionine-gamma-lyase (CSE) is one of the enzymes responsible for the endogenous production of H2S in mammals. With the
Tomokazu Ito et al.
Journal of bacteriology, 195(24), 5439-5449 (2013-10-08)
Escherichia coli YggS is a member of the highly conserved uncharacterized protein family that binds pyridoxal 5'-phosphate (PLP). To assist with the functional assignment of the YggS family, in vivo and in vitro analyses were performed using a yggS-deficient E.
K Yaegaki et al.
Clinical preventive dentistry, 14(1), 5-9 (1992-01-01)
Many oral microorganisms possess hydrophobic outer surfaces. A two-phase, oil-water mouthwash has, therefore, recently been developed to remove such oral microorganisms. The oil phase consists of olive oil and other essential oils. The aqueous phase includes cetylpyridinium chloride, which is
Asymmetric formal [3+2] cycloaddition reaction of isocyanoesters to 2-oxobutenoate esters by a multifunctional chiral silver catalyst.
Jin Song et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 17(28), 7786-7790 (2011-05-28)
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