Results 1 to 10 of about 145 (122)

The Role of Uron and Chlorobenzene Derivatives, as Potential Endocrine Disrupting Compounds, in the Secretion of ACTH and PRL. [PDF]

Int J Endocrinol, 2018
Uron herbicides polluting the environment represent a serious concern for environmental health and may be regarded as endocrine‐disrupting compounds (EDCs), which influence the regulation of human homeostasis. We aimed to investigate the effect of EDC urons (phenuron: PU, monuron: MU, and diuron: DU) and chlorobenzenes on the basal release of the ...
Sepp K, Laszlo AM, Molnar Z, Serester A, Alapi T, Galfi M, Valkusz Z, Radacs M.   +7 more
europepmc   +2 more sources

Elucidating the Stereodirecting Effect of C-4 Acyl Groups on Galactosyl Donors. [PDF]

Angew Chem Int Ed Engl
Tipping the balance of the reaction coordinate by changing a single protecting group. We demonstrate that α‐ and β‐galactosyl triflates are formed during galactosylation reactions and likely glycosylate according to a Curtin–Hammett scenario. C‐4 acyl groups exert their stereodirecting effect by sterically blocking displacement of α‐galactosyl ...
Ter Braak F, de Kleijne FFJ, van Wieringen T, Moons PH, Martens J, Oomens J, Korevaar PA, White PB, Boltje TJ.   +8 more
europepmc   +2 more sources

Influence of uron resins on the performance of UF resins as adhesives for plywood

Maderas: Ciencia y Tecnología, 2012
Uron resin, a kind of urea-formaldehyde (UF) resin containing much more uron structure, were prepared. Several modified UF resins were obtained from mixing uron resins with normal UF resins as well as synthesizing UF resin with uron resin as raw material.
Wei Gao, Jianzhang Li
doaj   +2 more sources

Crystal Structure of Uronate Dehydrogenase from Agrobacterium tumefaciens [PDF]

Journal of Biological Chemistry, 2011
Uronate dehydrogenase from Agrobacterium tumefaciens (AtUdh) belongs to the short-chain dehydrogenase/reductase superfamily and catalyzes the oxidation of D-galacturonic acid and D-glucuronic acid with NAD(+) as a cofactor. We have determined the crystal structures of an apo-form of AtUdh, a ternary form in complex with NADH and product (substrate ...
Parkkinen, Tarja, Boer, Harry, Jänis, Janne, Andberg, Martina, Penttilä, Merja, Koivula, Anu, Rouvinen, Juha   +7 more
openaire   +3 more sources

Structural and mechanistic classification of uronic acid-containing polysaccharide lyases [PDF]

Glycobiology, 2010
Polysaccharide lyases (PLs) have been assigned to 21 families based on their sequences, with ~ 50 singletons awaiting further classification. For 19 of these families, the structure of at least one protein is known. In this review, we have analyzed the available structural information and show that presently known PL families belong to six general ...
Garron, Marie-Line, Cygler, Miroslaw
openaire   +2 more sources

Biochemical and Structural Characterization of a Uronic Acid Oxidase from Citrus sinensis

ChemCatChem, 2023
AbstractAldaric acids are attractive diacids that can be prepared by selective oxidation of carbohydrates. For this, effective biocatalysts are in demand. This work reports on the discovery, biochemical and structural characterization of a VAO‐type flavin‐containing carbohydrate oxidase from Citrus sinensis: URAOCs3.
Alessandro Boverio, Hugo L. van Beek, Simone Savino, Adeline Ranoux, Wouter J. J. Huijgen, Harry W. C. Raaijmakers, Marco W. Fraaije, Nikola Lončar   +7 more
openaire   +1 more source

Chromohalobacter salixigens uronate dehydrogenase: Directed evolution for improved thermal stability and mutant CsUDH-inc X-ray crystal structure [PDF]

Process Biochemistry, 2022
Chromohalobacter salixigens contains a uronate dehydrogenase termed CsUDH that can convert uronic acids to their corresponding C1,C6-dicarboxy aldaric acids, an important enzyme reaction applicable for biotechnological use of sugar acids. To increase the thermal stability of this enzyme for biotechnological processes, directed evolution using gene ...
Wagschal, Kurt, Chan, Victor J, Pereira, Jose H, Zwart, Peter H, Sankaran, Banumathi   +4 more
openaire   +4 more sources

Structures of the K35 and K15 capsular polysaccharides of Acinetobacter baumannii LUH5535 and LUH5554 containing amino and diamino uronic acids [PDF]

Carbohydrate Research, 2017
Capsular polysaccharides were isolated from A. baumannii LUH5535 (K35 CPS) and LUH5554 (K15 CPS) and studied by 1D and 2D 1H and 13C NMR spectroscopy. The CPSs were found to consist of linear tetrasaccharide repeats (K units) containing 2-acetamido-2-deoxy-d-galacturonic acid (K35) or 2,3-diacetamido-2,3-deoxy-d-glucuronic acid (K15) and 2,4 ...
Shashkov, Alexander, Liu, Bin, Kenyon, Johanna, Popova, Anastasiya, Shneider, Mikhail, Senchenkova, Sof'ya, Arbatsky, Nikolay, Miroshnikov, Konstantin, Wang, Lei, Knirel, Yuriy   +9 more
openaire   +3 more sources

A spatially‐explicit assessment of the fish population response to flow management in a heterogeneous landscape

Ecosphere, Volume 7, Issue 5, May 2016., 2016
Abstract Ecological processes are structured in space and there are important benefits in incorporating spatial information for the analysis of data sets obtained from field studies. Assessing the effect of different flow management practices on river ecosystems is an example where such an exercise is highly relevant.
Guillaume Guénard, Gabriel Lanthier, Simonne Harvey‐Lavoie, Camille J. Macnaughton, Caroline Senay, Michel Lapointe, Pierre Legendre, Daniel Boisclair, D. P. C. Peters   +8 more
wiley   +1 more source

Tumour Debulking for Esophageal Cancer ‐ Thermal Modalities

Canadian Journal of Gastroenterology and Hepatology, Volume 6, Issue 5, Page 290-296, 1992., 1992
Esophageal cancer usually is discovered at a late stage and curative therapy seldom is possible. The prognosis is poor and most therapy is palliative. Endoscopic therapy commonly is employed; two common treatments involve thermal modalities. The Nd:YAG laser has been employed for 10 years and is effective in relieving obstruction in approximately 90 ...
David Fleischer
wiley   +1 more source