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Showing 1-29 of 29 results for "P8001" within Papers
William M Moe et al.
Environmental science & technology, 52(16), 9311-9319 (2018-07-26)
In situ bioremediation practices that include subsurface addition of fermentable electron donors to stimulate reductive dechlorination by anaerobic bacteria have become widely employed to combat chlorinated solvent contamination in groundwater. At a contaminated site located near Baton Rouge, Louisiana (USA)
Cristiana M L Di Giuro et al.
PloS one, 8(7), e68932-e68932 (2013-08-13)
(S)-Hydroxymandelate synthase (Hms) is a nonheme Fe(II) dependent dioxygenase that catalyzes the oxidation of 4-hydroxyphenylpyruvate to (S)-4-hydroxymandelate by molecular oxygen. In this work, the substrate promiscuity of Hms is characterized in order to assess its potential for the biosynthesis of
Jun Wang et al.
Frontiers in microbiology, 10, 2357-2357 (2019-11-05)
Endogenous hydrogen sulfide (H2S), which is primarily generated by 3-mercaptopyruvate sulfurtransferase (3-MST) in Escherichia coli (E. coli) under aerobic conditions, renders bacteria highly resistant to oxidative stress. However, the biosynthetic pathway and physiological role of this gas under anaerobic conditions
Joo Won Park et al.
Experimental & molecular medicine, 42(2), 105-115 (2009-12-01)
Phenylketonuria is an autosomal recessive disorder caused by a deficiency of phenylalanine hydroxylase. Transthyretin has been implicated as an indicator of nutritional status in phenylketonuria patients. In this study, we report that phenylalanine and its metabolite, phenylpyruvic acid, affect MAPK
Gerrit J Poelarends et al.
Biochemistry, 46(33), 9596-9604 (2007-07-31)
The enzymatic conversion of cis- or trans-3-chloroacrylic acid to malonate semialdehyde is a key step in the bacterial degradation of the nematocide 1,3-dichloropropene. Two mechanisms have been proposed for the isomer-specific hydrolytic dehalogenases, cis- and trans-3-chloroacrylic acid dehalogenase (cis-CaaD and
Xingfeng Li et al.
Biotechnology letters, 29(4), 593-597 (2007-03-03)
Phenyllactic acid (PLA) is a novel antimicrobial compound derived from phenylalanine (Phe). Lactobacillus sp. SK007, having high PLA-producing ability, was isolated from Chinese traditional pickles. When 6.1 mM phenylpyruvic acid (PPA) was used to replace Phe as substrate at the
Valeriano Dal Cin et al.
The Plant cell, 23(7), 2738-2753 (2011-07-14)
Altering expression of transcription factors can be an effective means to coordinately modulate entire metabolic pathways in plants. It can also provide useful information concerning the identities of genes that constitute metabolic networks. Here, we used ectopic expression of a
Qiang Tan et al.
Applied biochemistry and biotechnology, 136(3), 279-289 (2007-07-13)
The high-density fermentation of recombinant Pichia pastoris was carried out in a 1-L fermentor. After 60 h of fermentation, the activities of D-amino acid oxidase (DAAO) and catalase assayed with the permeabilized cells attained 12,532 and 684,800 U/L, respectively. Additionally
Paddy Jim Baggot et al.
Fetal diagnosis and therapy, 23(3), 245-248 (2008-04-18)
Organic acids were examined from normal and Down syndrome pregnancies to identify possible differences between the amniotic fluid from fetuses with Down Syndrome compared with that of normal fetuses. Amniotic fluids were obtained from prior amniocenteses. Forty-one normal and 22
Tânia Veiga et al.
Eukaryotic cell, 11(2), 238-249 (2011-12-14)
The industrial production of penicillin G by Penicillium chrysogenum requires the supplementation of the growth medium with the side chain precursor phenylacetate. The growth of P. chrysogenum with phenylalanine as the sole nitrogen source resulted in the extracellular production of
Xingfeng Li et al.
Journal of agricultural and food chemistry, 56(7), 2392-2399 (2008-03-13)
Phenyllactic acid (PLA) is a novel antimicrobial compound synthesized by lactic acid bacteria (LAB), and its production from phenylpyruvic acid (PPA) is an effective approach. In this work, a lactate dehydrogenase (LDH), which catalyzes the reduction of PPA to PLA
Wanmeng Mu et al.
Biotechnology letters, 34(5), 907-911 (2012-01-21)
The gene coding for D-lactate dehydrogenase (D-LDH) from Pediococcus acidilactici DSM 20284 was cloned and expressed in E. coli. The recombinant enzyme was purified by nickel-affinity chromatography. It converted phenylpyruvic acid (PPA) to 3-phenyllactic acid maximally at 30°C and pH
Shuhuai Yu et al.
Bioscience, biotechnology, and biochemistry, 76(4), 853-855 (2012-04-10)
D-Lactate dehydrogenase (D-LDH) from Pediococcus pentosaceus ATCC 25745 was found to produce D-3-phenyllactic acid from phenylpyruvate. The optimum pH and temperature for enzyme activity were pH 5.5 and 45 °C. The Michaelis-Menten constant (K(m)), turnover number (k(cat)), and catalytic efficiency
Zhaojuan Zheng et al.
PloS one, 6(4), e19030-e19030 (2011-05-03)
Phenyllactic acid (PLA), a novel antimicrobial compound with broad and effective antimicrobial activity against both bacteria and fungi, can be produced by many microorganisms, especially lactic acid bacteria. However, the concentration and productivity of PLA have been low in previous
Andrea Pereira Rosa et al.
Cellular and molecular neurobiology, 32(7), 1113-1118 (2012-04-06)
Phenylketonuria is a recessive autosomal disorder that is caused by a deficiency in the activity of phenylalanine-4-hydroxylase, which converts phenylalanine to tyrosine, leading to the accumulation of phenylalanine and its metabolites phenyllactic acid, phenylacetic acid, and phenylpyruvic acid in the
A Hargreaves et al.
Journal of photochemistry and photobiology. B, Biology, 89(2-3), 110-116 (2007-11-06)
Ultraviolet A (UVA) light (315-400 nm) is ubiquitously found in our environment and constitutes about 95% of the total solar UV; all UVC and most UVB being absorbed by the stratospheric ozone layer. Compared with UVB and C, UVA does
Wanmeng Mu et al.
Bioresource technology, 100(21), 5226-5229 (2009-06-09)
3-Phenyllactic acid (PLA), which is produced by some strains of lactic acid bacteria (LAB), is a known antimicrobial agent with a broad spectrum. Batch and fed-batch fermentation by the strain Lactobacillus sp. SK007 for PLA production have been reported. With
Taiki Fujii et al.
Biochimica et biophysica acta, 1814(12), 1669-1676 (2011-06-16)
We discovered the phenyllactate (PLA)-producing fungal strain Wickerhamia fluorescens TK1 and purified phenylpyruvate reductase (PPR) from fungal cell-free extracts. The PPR used both NADPH and NADH as cofactors with more preference for the former. The enzyme reaction as well as
Dongli Zhang et al.
Analytica chimica acta, 694(1-2), 61-66 (2011-05-14)
The urinary metabolic marker compounds, namely phenylpyruvic acid (PPA), 2-hydroxyphenylacetic acid (oOPAA), 4-hydroxyphenylacetic acid (pOPAA), phenyllactic acid (PLA) and phenylacetic acid (PAA) of phenylketonuric individuals were detected by a novel method of micellar electrokinetic capillary chromatography with capacitively coupled contactless
A M Paloian et al.
Prikladnaia biokhimiia i mikrobiologiia, 49(2), 129-135 (2013-06-26)
Km for L-phenylalanine, L-glutamic acid, L-aspartic acid, and the corresponding keto acids were calculated, as well as Vmax, was measured for the following pairs of substrates: L-phenylalanine-2-ketoglutarate, L-phenylalanine-oxaloacetate, L-glutamic acid-phenylpyruvate, and L-aspartic acid-phenylpyruvate for aminotransferases PATI, PAT2, and PAT3 from
Joseph T Dever et al.
Drug metabolism and disposition: the biological fate of chemicals, 36(11), 2252-2260 (2008-08-09)
L-methionine-dl-sulfoxide (MetO) is an L-methionine (Met) metabolite, but its role in Met metabolism and toxicity is not clear. In this study, MetO uptake, metabolism to Met, cytotoxicity, and glutathione (GSH) and glutathione disulfide (GSSG) status were characterized in freshly isolated
Nucleophile selectivity of chorismate-utilizing enzymes.
Olivier Kerbarh et al.
Chembiochem : a European journal of chemical biology, 8(6), 622-624 (2007-03-06)
Hajer Ouertatani-Sakouhi et al.
Journal of biomolecular screening, 15(4), 347-358 (2010-03-17)
Macrophage migration inhibitory factor (MIF) is a major mediator of innate immunity and inflammation and presents a potential therapeutic target for various inflammatory, infectious, and autoimmune diseases, including cancer. Although a number of inhibitors have been identified and designed based
Cristiana M L Di Giuro et al.
Journal of inorganic biochemistry, 105(9), 1204-1211 (2011-07-02)
Mononuclear nonheme iron enzymes (MNHEs) catalyze a range of very diverse reactions in O(2) metabolism, but they share a common principle active-site organization. To investigate a putative catalytic promiscuity of these enzymatic metal centers, we studied the reactivity of the
Satoshi Hirano et al.
The Journal of biological chemistry, 283(10), 6459-6466 (2008-01-04)
Violacein and the indolocarbazoles are naturally occurring bisindole products with various biological activities, including antitumor activity. Although these compounds have markedly different molecular skeletons, their biosynthetic pathways share the same intermediate "compound X," which is produced from L-tryptophan via indole-3-pyruvic
Jianghua Jia et al.
Applied biochemistry and biotechnology, 162(1), 242-251 (2009-09-24)
Two DNA fragments containing the entire coding sequences of lactate dehydrogenase (LDH; ldhL1 and ldhD), whose enzymes have high activity for bioconversion of phenylpyruvate (PPA) to phenyllactate (PLA), were amplified from Lactobacillus plantarum SK002 using PCR. Sequencing showed open reading
Tapan Kanti Paine et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 13(21), 6073-6081 (2007-05-01)
Iron(II)-phenylpyruvate complexes of tetradentate tris(6-methyl-2-pyridylmethyl)amine (6-Me3-TPA) and tridentate benzyl bis(2-quinolinylmethyl)amine (Bn-BQA) were prepared to gain insight into C-C bond cleavage catalyzed by dioxygenase enzymes. The complexes we have prepared and characterized are [Fe(6-Me3-tpa)(prv)][BPh4] (1), [Fe2(6-Me3-tpa)2(pp)][(BPh4)2] (2), and [Fe2(6-Me3-tpa)2(2'-NO2-pp)][(BPh4)2] (3), [Fe(6-Me3-tpa)(pp-Me)][BPh4]
Faqing Tang et al.
Clinical biochemistry, 44(8-9), 711-718 (2011-03-16)
To search for markers of nasopharyngeal carcinoma (NPC) for diagnosis. Using gas chromatography and mass spectrometry, we evaluated 51 serum metabolites in 49 NPC, 37 throat cancer patients and 40 healthy controls. High metabolites were selected and confirmed in NPC
Sumit Chakraborty et al.
Biochemistry, 47(12), 3800-3809 (2008-03-05)
Direct spectroscopic observation of thiamin diphosphate-bound intermediates was achieved on the enzyme benzaldehyde lyase, which carries out reversible and highly enantiospecific conversion of ( R)-benzoin to benzaldehyde. The key enamine intermediate could be observed at lambda max 393 nm in
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