Results 11 to 20 of about 376 (86)

Synthesis of Fungal Cell Wall Oligosaccharides and Their Ability to Trigger Plant Immune Responses. [PDF]

open access: yesEuropean J Org Chem, 2022
Automated glycan assembly and solution‐phase synthesis provided a set of fungal cell wall oligosaccharides that were investigated for their ability to activate the plant immune system. Synthetic chitin and β‐1,6‐glucan oligosaccharides triggered mitogen‐activated protein kinase phosphorylation and a reactive oxygen burst in Arabidopsis seedlings ...
Chaube MA   +4 more
europepmc   +2 more sources

Differences in the chitinolytic activity of mammalian chitinases on soluble and insoluble substrates. [PDF]

open access: yesProtein Sci, 2020
Abstract Chitin is an abundant polysaccharide used by many organisms for structural rigidity and water repulsion. As such, the insoluble crystalline structure of chitin poses significant challenges for enzymatic degradation. Acidic mammalian chitinase, a processive glycosyl hydrolase, is the primary enzyme involved in the degradation of environmental ...
Barad BA   +6 more
europepmc   +2 more sources

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

open access: yesChemCatChem, Volume 15, Issue 21, November 8, 2023., 2023
Aldaric acids are attractive diacids that can be prepared by selective oxidation of carbohydrates. The discovery, biochemical and structural characterization of a VAO‐type flavin‐containing carbohydrate oxidase from Citrus sinensis: URAOCs3 is reported. The selective oxidation of D‐galacturonic acid in a complex mixture is demonstrated.
Alessandro Boverio   +7 more
wiley   +1 more source

Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2019–2020

open access: yesMass Spectrometry Reviews, Volume 42, Issue 5, Page 1984-2206, September/October 2023., 2023
Abstract This review is the tenth update of the original article published in 1999 on the application of matrix‐assisted laser desorption/ionization (MALDI) mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2020.
David J. Harvey
wiley   +1 more source

Revisiting the AA14 family of lytic polysaccharide monooxygenases and their catalytic activity

open access: yesFEBS Letters, Volume 597, Issue 16, Page 2086-2102, August 2023., 2023
The AA14 family of lytic polysaccharide monooxygenases (LPMOs) was discovered in 2018. While these enzymes were originally thought to act on cellulose‐associated xylan, thorough characterization of both a novel and previously studied family members indicates that AA14 LPMOs do not act on cellulose‐associated xylan.
Tina R. Tuveng   +8 more
wiley   +1 more source

Effects of chitin and chitosan on root growth, biochemical defense response and exudate proteome of Cannabis sativa

open access: yesPlant-Environment Interactions, Volume 4, Issue 3, Page 115-133, June 2023., 2023
Chitosan elicits defense responses of Cannabis sativa root systems, but chitin has no effect in this regard. Defense enzymes and proteins were found to be increasingly produced in the tissues and secreted into exudate upon chitosan treatment. These results highlight the potential of chitosan to be alternatively used for managing fungal infection in ...
Pipob Suwanchaikasem   +5 more
wiley   +1 more source

Nanochitin and Nanochitosan: Chitin Nanostructure Engineering with Multiscale Properties for Biomedical and Environmental Applications

open access: yesAdvanced Materials, Volume 35, Issue 4, January 26, 2023., 2023
Nanochitins have recently attracted attention as a source of advanced green materials. Recent advances in molecular‐ and nanoscience have enabled the development of chitin nanostructures exhibiting physicochemical and biological properties depending on the length scale.
Suyoung Lee   +4 more
wiley   +1 more source

Study on the Physicochemical Properties of Chitosan and their Applications in the Biomedical Sector

open access: yesInternational Journal of Polymer Science, Volume 2023, Issue 1, 2023., 2023
Chitosan is a natural polymer derived from the deacetylation of chitin. It is mainly derived from crustaceans and fungal sources. It has many intrinsic properties, such as biocompatibility, biodegradability, cationic nature, and nontoxicity. These features of chitosan have made it an attractive material for various applications.
Digafe Alemu   +3 more
wiley   +1 more source

Use of chitin and chitosan to produce new chitooligosaccharides by chitinase Chit42: enzymatic activity and structural basis of protein specificity

open access: yesMicrobial Cell Factories, 2018
Background Chitinases are ubiquitous enzymes that have gained a recent biotechnological attention due to their ability to transform biological waste from chitin into valued chito-oligomers with wide agricultural, industrial or medical applications.
Peter Elias Kidibule   +8 more
doaj   +1 more source

Analysis of the structure and substrate scope of chitooligosaccharide oxidase reveals high affinity for C2‐modified glucosamines

open access: yesFEBS Letters, Volume 594, Issue 17, Page 2819-2828, September 2020., 2020
The crystal structure of ChitO was solved for the first time. The substrate range of ChitO was further expanded towards C2‐glucosamines. Docking experiments explained the substrate acceptance of ChitO. Chitooligosaccharide oxidase (ChitO) is a fungal carbohydrate oxidase containing a bicovalently bound FAD cofactor.
Simone Savino   +3 more
wiley   +1 more source

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