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  • sugars
  • Fructo-oligosaccharides are made up of plant sugars linked in chains. (webmd.com)
  • An oligosaccharide (from the Greek ὀλίγος olígos, "a few", and σάκχαρ sácchar, "sugar") is a saccharide polymer containing a small number (typically three to ten) of monosaccharides (simple sugars). (wikipedia.org)
  • Glycosylation sites in O-linked oligosaccharides are determined by the secondary and tertiary structures of the polypeptide, which dictate where glycosyltransferases will add sugars. (wikipedia.org)
  • Core-OS are highly diverse among bacterial species and even within strains of species The core domain always contains an oligosaccharide component which attaches directly to lipid A and commonly contains sugars such as heptose and 3-deoxy-D-mannooctulosonic acid (also known as KDO, keto-deoxyoctulosonate). (wikipedia.org)
  • residues
  • Work to establish the structure-function relationship of complex, non-linear and highly heterogeneous oligosaccharides need to be done in order to determine the structural variations in the sugar residues into specific functions. (thefreedictionary.com)
  • Thus, the molecular size is characterized by the degree of polymerization (DP) defined as follows: DP with generally 20-25 or higher are defined as polymers while oligosaccharides contain between 2 and 10 residues ( Courtois, 2009 ). (frontiersin.org)
  • Thus, the differential liability of certain residues or chemical groups for the elucidation of the depolymerization mechanisms has to be further investigated with a multi-disciplinary approach for the fine structural analysis of algae-derived marine oligosaccharides. (frontiersin.org)
  • While a strict definition of an oligosaccharide is not established, it is generally agreed that a carbohydrate consisting of two to ten monosaccharide residues with a defined structure is an oligosaccharide. (wikipedia.org)
  • Core oligosaccharide (or Core-OS) is a short chain of sugar residues within Gram-negative lipopolysaccharide (LPS). (wikipedia.org)
  • This enzyme catalyses the following chemical reaction Hydrolysis of (1->4)-beta-D-xylose residues from the reducing end of oligosaccharides The enzyme acts rapidly on the beta-anomer of beta-D-xylopyranosyl-(1->4)-beta-D-xylopyranose. (wikipedia.org)
  • This enzyme catalyses the following chemical reaction Hydrolysis of the terminal (1->2)-linked alpha-D-mannose residues in the oligo-mannose oligosaccharide Man9(GlcNAc)2 This enzyme is involved in the synthesis of glycoproteins. (wikipedia.org)
  • This enzyme catalyses the following chemical reaction Transfers an N-acetyl-D-glucosamine residue from UDP-N-acetyl-D-glucosamine to the 4-position of a mannose linked alpha-(1->6) to the core mannose of high-mannose oligosaccharides produced by Dictyostelium discoideum The activity of the intersecting mannose residue as acceptor is dependent on two other mannose residues attached by alpha-1,3 and alpha-1,6 links. (wikipedia.org)
  • substrate
  • In N-glycosylation for eukaryotes, the oligosaccharide substrate is assembled right at the membrane of the endoplasmatic reticulum. (wikipedia.org)
  • MOGS is highly specific to the oligosaccharide in its biological substrate in the N-glycosylation pathway. (wikipedia.org)
  • This enzyme catalyses the following chemical reaction Hydrolysis of the (1->3)-alpha-L-galactosidic linkages of neoagaro-oligosaccharides that are smaller than a hexamer, yielding 3,6-anhydro-L-galactose and D-galactose When neoagarohexaose is used as a substrate, the oligosaccharide is cleaved at the non-reducing end to produce 3,6-anhydro-L-galactose and agaropentaose, which is further hydrolysed to agarobiose and agarotriose. (wikipedia.org)
  • Enzymatic
  • The starch is first converted, by means of simple enzymatic hydrolysis, into high maltose syrup with di-, tri and oligosaccharides (2, 3 or more glucose units) having α(1,4)-glycosidic linkages which are readily digestible in the human intestine. (wikipedia.org)
  • digestible
  • Oligosaccharides are not digestible by human gut enzymes. (livestrong.com)
  • oligosaccharides *are* digestible - by coliform bacteria. (bio.net)
  • 1) Digestible means degraded by enzymes of the host and absorbed, non digestible means that the material reaches the colon 2) coliform bacteria are of no importance to flatulence 3) coliform bacteria (E.coli is the only one in the intestine) do not degrade many oligosaccharides (they do degrade and ferment fructooligosaccharides (FOS, Nutraflora) though) 4) flatulence is mainly due to clostridia. (bio.net)
  • maltose
  • Some oligosaccharides, for example maltose, sucrose, and lactose, were trivially named before their chemical constitution was determined, and these names are still used today. (wikipedia.org)
  • mixtures
  • The oligosaccharides in IMO mixtures are, at least partially, fermented by bacteria in the colon and may, therefore, stimulate the growth of bacterial subpopulations. (wikipedia.org)
  • mannose
  • Since galactose and mannose are both hexoses, and therefore diastereomers of one another, both permethylated oligosaccharides have the same composition (HexNAc 5 Hex 5 ) and molecular weight (2293 Da). (bio-medicine.org)
  • Complex
  • In addition to being a source of proteins and peptides, milk contains complex oligosaccharides that possess important functions related to the newborn's development and health. (hindawi.com)
  • proteins
  • This review focuses on recent findings demonstrating the biological activities of milk peptides, proteins, and oligosaccharides towards the prevention of diseases of the 21st century. (hindawi.com)
  • structures
  • Moreover, the composition and sequence analysis of marine oligosaccharides are still a challenging task because of their complexity in structures and heterogeneity. (frontiersin.org)
  • Glycoproteins have distinct Oligosaccharide structures which have significant effects on many of their properties, affecting critical functions such as antigenicity, solubility, and resistance to proteases. (wikipedia.org)
  • intestine
  • The nondigestibility of oligosaccharides provides a health benefit as they help to feed friendly bacteria, also known as probiotics, in the large intestine. (livestrong.com)
  • Oligosaccharides that are not digested and absorbed in the small intestine, pass through to the colon where they are fermented by Bifidobacteria, thus enhancing the proliferation of the bacteria. (wikipedia.org)
  • Interactions
  • The nature of interactions in these oligosaccharides and their conformations are more specific in considering them as therapeutic agents, or elicitors for the production of specific metabolites. (frontiersin.org)
  • effectively
  • With these two oligosaccharides infused together, MS 2 of their doubly-sodiated molecular ions at m/z 1169.5 (Figure 2) produces fragments corresponding to both N 5 H 5 -I and N 5 H 5 -II, with each oligosaccharide effectively contaminating the spectrum of the other. (bio-medicine.org)
  • high
  • The reason for this apparent contradiction is that both the accumulation of HA (due to increased HAS levels and decreased HYAL levels), and the degradation of HA into HA oligosaccharides by high HYAL levels result in increased tumor malignancy. (wikipedia.org)