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  • Oxidation
  • Annotation described in this paper also reveals evidence for several metabolic pathways that have yet to be observed experimentally, including a sulphur oxidation ( sox FCDYZAXB) gene cluster, Calvin cycle enzymes, and proteins involved in nitrogen fixation in other species (including RubisCo, ribulose-phosphate 3-epimerase, and nif gene families, respectively). (biomedcentral.com)
  • The oxidation of the catechol 3',4'-dihydroxyl electron-donating groups occurs first, at very low positive potentials, and is a reversible reaction. (wikipedia.org)
  • catechin
  • Catechol was first isolated in 1839 by Edgar Hugo Emil Reinsch (1809 - 1884) by distilling it from the solid tannic preparation catechin, which is the residuum of catechu, the boiled or concentrated juice of Mimosa catechu (Acacia catechu L.f). (wikipedia.org)
  • Catechin possesses two benzene rings (called the A- and B-rings) and a dihydropyran heterocycle (the C-ring) with a hydroxyl group on carbon 3. (wikipedia.org)
  • substrate
  • Both enzymes have been characterized as 2-hydroxy-6-oxohepta-2,4-dienoate hydrolases with low activity toward 2-hydroxy-6-oxophenylhexa-2,4-dienoate (the substrate of BphD), but EtbD2 and EtbD1 convert the latter compound with 11 and 3.3% relative activity, respectively (Yamada et al. (alpfmedical.info)
  • PO activity was determined in a 96-well microplate in a total reaction volume of 300 [micro]L per well with catechol as the substrate, according to the method described by Benjamin & Montgomery (1913). (thefreedictionary.com)
  • gene
  • Examples of recent gene duplication events in signaling as well as dioxygenase clusters are present, indicating selective gene family expansion as a relatively recent event in D. aromatica 's evolutionary history. (biomedcentral.com)
  • biphenyl
  • 2006). Two cis-dihydrodiol dehydrogenases BphB1 and BphB2, which are encoded on pRHL1 and pRHL2, respectively, catalyze the second step in biphenyl catabolism, i.e., the rearomatization of the cis-dihydrodiol to form 2,3-dihydroxybiphenyl. (alpfmedical.info)
  • aqueous
  • C6H5OH + H2O2 → C6H4(OH)2 + H2O Previously, it was produced by hydroxylation of salicylaldehyde using hydrogen peroxide, as well as the hydrolysis of 2-substituted phenols, especially 2-chlorophenol, with hot aqueous solutions containing alkali metal hydroxides. (wikipedia.org)
  • acid
  • The spatial distribution of 2,4-dichlorophenoxyacetic acid (2,4-D) degrader microhabitats as a function of 2,4-D degrader abundance is investigated by using a soil microsampling strategy combined with a mathematical spatial analysis. (readabstracts.com)
  • Catechol is the conjugate acid of a chelating agent used widely in coordination chemistry. (wikipedia.org)
  • The plant discharged 62,907 pounds of toxics in the Willamette River, including ammonia, formic acid and manganese, plus catechol and lead, the EPA figures show. (thefreedictionary.com)
  • Oxygenation and spontaneous deamination of 2-aminobenzenesulphonic acid in Alcaligenes sp. (genome.jp)
  • strain
  • The 16S rDNA analysis revealed 99% nucleotide similarity to that of the type strain of R.rhodochrous (Fig. 2) ( 10 ). (kenyon.edu)
  • Initial interest in Dechloromonas aromatica strain RCB arose from its ability to anaerobically degrade benzene. (biomedcentral.com)
  • chemical
  • It belongs to the group of flavan-3-ols (or simply flavanols), part of the chemical family of flavonoids. (wikipedia.org)
  • addition
  • Cyclic esters are formed upon treatment with phosphorus trichloride and phosphorus oxychloride, carbonyl chloride, and sulphuryl chloride: C6H4(OH)2 + XCl2 → C6H4(O2X) + 2 HCl where X = CO, SO2, PCl, P(O)Cl Catechols produce quinones with the addition of ceric ammonium nitrate (CAN). (wikipedia.org)
  • structure
  • Urushiols are naturally existing organic compounds that have the catechol skeleton structure and diphenol functionality but with alkyl groups substituted onto the aromatic ring. (wikipedia.org)
  • Catecholamines are biochemically significant hormones/neurotransmitters that are phenethylamines in which the phenyl group has a catechol skeleton structure. (wikipedia.org)
  • enzymes
  • Annotation described in this paper also reveals evidence for several metabolic pathways that have yet to be observed experimentally, including a sulphur oxidation ( sox FCDYZAXB) gene cluster, Calvin cycle enzymes, and proteins involved in nitrogen fixation in other species (including RubisCo, ribulose-phosphate 3-epimerase, and nif gene families, respectively). (biomedcentral.com)
  • naphthalene
  • A natural component of crude oil, 2-methyl naphthalene is structurally related to naphthalene, an ingredient in mothballs and toilet-deodorant blocks that is considered a possible human carcinogen by the EPA. (wordnik.com)
  • Crystalline
  • A white crystalline aromatic hydrocarbon, C10H8, analogous to benzene, and obtained by the distillation of certain bituminous materials, such as the heavy oil of coal tar. (wordnik.com)
  • Molecular
  • Molecular structure of ochratoxins naturally produced by filamentous fungi [ 2 , 5 , 6 ]. (mdpi.com)