- Phosphorylase can only cleave α-1,4- glycosidic bond between adjacent glucose molecules in glycogen but branches exist as α-1,6 linkages. (wikidoc.org)
- [7] This is a common method through which to cleave bonds, with an acid below the site of hydrolysis to lend a proton and a base above to deprotinate a water which can then act as a nucleophile . (wikidoc.org)
- are a widespread group of enzymes that hydrolyse the glycosidic bond between two or more carbohydrates, or between a carbohydrate and a non-carbohydrate moiety. (wikipedia.org)
- During cellulose hydrolysis, endoglucanases first attack the amorphous area of the polysaccharide chain, breaking the β-1,4-glycosidic bonds releasing cellodextrin and creating new chain ends. (springeropen.com)
- Given that chitin is not produced by mammals, it is intriguing that Mycobacterium tuberculosis, an exclusively human pathogen harbours Rv1987, a probable chitinase and secretes it. (bvsalud.org)
- ChiD, a chitinase found in Bacillus circulans, hydrolyzes the 1,4-beta-linkages of N-acetylglucosamine in chitin and chitodextrins. (unl.edu)
- PPL2 (Parkia platycephala lectin 2) is a class III chitinase from Parkia platycephala seeds that hydrolyzes beta(1-4) glycosidic bonds linking 2-acetoamido-2-deoxy-beta-D-glucopyranose units in chitin. (unl.edu)
- BACKGROUND: Chitotriosidase (chitinase 1 or CHIT1) is secreted by activated macrophages. (bvsalud.org)
- Lysozyme (EC 3.2.1.17) is an enzyme that hydrolyzes the β-1,4-glycosidic bond between N -acetylmuramic acid and N -acetylglucosamine (GlcNAc) in peptidoglycan, a major structural component of the bacterial cell wall ( Jollès and Jollès, 1984 ). (frontiersin.org)
- Oomycetes were recently discovered as natural pathogens of Caenorhabditis elegans, and pathogen recognition alone was shown to be sufficient to activate a protective transcriptional program characterized by the expression of multiple chitinase-like (chil) genes. (bvsalud.org)
- These include sixteen endo-type chitinases, two N-acetylglucosaminidases, and one lipopolysaccharide monooxygenase that catalyzes the oxidative cleavage of glycosidic bonds. (bvsalud.org)
- It has been calculated that the natural cellulose crystalline area has 8 and the amorphous area at an average 5.3 hydrogen bonds per glucose unit (Kobayashi and Fukuoka 2013 ). (springeropen.com)
- Cellulose is made up of glucose monomers that are linked by β-1-4 glycosidic bonds. (als-journal.com)
- Cellulases break down the β-1,4-glycosidic bonds of the cellulose molecule into monosaccharides such as β-glucose, or shorter polysaccharides and oligosaccharides [4]. (als-journal.com)
- In the catalytic reaction, Glu35 is thought to act as a general acid catalyst to protonate the glycosidic oxygen, while Asp52 acts as a conjugate base and stabilizes the carbonium ion intermediate that adopts a half-chair conformation with C1 carbon displaying sp 2 hybridization. (frontiersin.org)
- This is the release of four single chitinase deletion mutants in Salmonella enterica serovar Typhimurium LT2. (researchgate.net)
- Evidence for the formation of covalent bonds between macromolecules in the domain of the wall of Candida albicans mycelial cells. (microbiologyresearch.org)
- Serratia marcescens Chitinase A (SmChiA) is a molecular motor efficiently hydrolyzing recalcitrant crystalline chitin by moving on the surface processively. (titech.ac.jp)
- Chitinases (E.C.3.2.1.14) comprise a family of extracellular cell-wall hydrolases that hydrolyze the β-1,4-glycosidic bond of chitin to form the monomer N -acetyl-D-glucosamine. (ijbs.com)
- Glycoside hydrolases that break down glycosidic bonds in CHITIN . (nih.gov)
- PPL2 (Parkia platycephala lectin 2) is a class III chitinase from Parkia platycephala seeds that hydrolyzes beta(1-4) glycosidic bonds linking 2-acetoamido-2-deoxy-beta-D-glucopyranose units in chitin. (unl.edu)
- The enzyme can also break glycosidic bonds in chitin , although not as effectively as true chitinases . (cloudfront.net)
- This enzyme shows glycosidic hydrolyzing activity between the two GlcNAcs in the core of N-linked glycans and cleaves hybrid- and high-mannose-type glycans. (medscape.com)
- The enzyme functions by hydrolyzing glycosidic bonds in peptidoglycans . (cloudfront.net)
- Covalent intermediate of lysozyme enzyme, with covalent bond in black and experimental evidence as blue mesh. (cloudfront.net)
- In the chemical step, glycosidic bond is first cleaved and intermediate structure of substrate is hydrolyzed. (titech.ac.jp)
- We first identified a gene from B. thuringiensis YBT-9602 that encodes a chitinase (Chi9602) belonging to glycosyl hydrolase family 18 with conserved substrate-binding and substrate-catalytic motifs. (ijbs.com)
- Evidence for the formation of covalent bonds between macromolecules in the domain of the wall of Candida albicans mycelial cells. (microbiologyresearch.org)
- Recently, however, Serratia marcescens chitinase A (SmChiA) has been rediscovered as a molecular motor working in extracellular environments without using ATP. (titech.ac.jp)
- Ni H, Zeng S, Qin X, Sun X, Zhang S, Zhao X, Yu Z, Li L. Molecular Docking and Site-directed Mutagenesis of a Bacillus thuringiensis Chitinase to Improve Chitinolytic, Synergistic Lepidopteran-larvicidal and Nematicidal Activities. (ijbs.com)
- In this study, we constructed mutants of a Bacillus thuringiensis chitinase with enhanced activity based on homology modeling, molecular docking, and the site-directed mutagenesis of target residues to modify spatial positions, steric hindrances, or hydrophilicity/hydrophobicity. (ijbs.com)
- This proposed intermediate was also suggested to account for dispersing the charge developed at the anomeric carbon during bond breaking 10 . (nature.com)
- [13] An ionic intermediate containing an oxo-carbenium is created as a result of the glycosidic bond breaking. (cloudfront.net)