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The chemical reactions and pathways involving polysaccharides, polymers of more than 10 monosaccharide residues joined by glycosidic linkages, as carried out by individual cells. The chemical reactions and pathways resulting in the breakdown of carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y, as carried out by individual cells. The chemical reactions and pathways resulting in the breakdown of mannan, the main hemicellulose of soft (coniferous) wood, made up of D-mannose, D-glucose and D-galactose. The chemical reactions and pathways resulting in the breakdown of macromolecules forming part of a cell wall, occurring at the level of the cell. The chemical reactions and pathways involving mannan, a group of polysaccharides containing a backbone composed of a polymer of D-mannose units. The chemical reactions and pathways involving hemicelluloses, plant cell wall polysaccharides that have a backbone of 1,4-linked beta-D-pyranosyl residues in which O4 is in the equatorial orientation. Many different hemicelluloses usually occur intermixed with each molecular type representing different degrees of polymerization and contain many different sugar monomers, which can include glucose, xylose, mannose, galactose, and arabinose. Hemicelluloses also contain most of the D-pentose sugars and occasionally small amounts of L-sugars as well. Xylose is always the sugar monomer present in the largest amount, but mannuronic acid and galacturonic acid also tend to be present. The chemical reactions and pathways resulting in the breakdown of galactomannan, a polysaccharide composed of D-galactosyl and D-mannosyl. The mannosyl units form the backbone structure (a linear main chain) with the D-galactosyl as single side units. The chemical reactions and pathways resulting in the breakdown of alginic acid, a hydrophilic polysaccharide occurring in, for example, the cell walls of brown algae (brown seaweeds). The chemical reactions and pathways resulting in the breakdown of macromolecules that form part of a cell wall. The chemical reactions and pathways involving macromolecules forming, or destined to form, part of a cell wall. A cell wall is a rigid or semi-rigid envelope lying outside the cell membrane of plant, fungal and most prokaryotic cells, maintaining their shape and protecting them from osmotic lysis, occurring at the level of the cell. The chemical reactions and pathways resulting in the breakdown of polysaccharides, polymers of more than 10 monosaccharide residues joined by glycosidic linkages, as carried out by individual cells. The chemical reactions and pathways resulting in the breakdown of substances, carried out by individual cells. The chemical reactions and pathways resulting in the breakdown of polysaccharides, polymers of more than 10 monosaccharide residues joined by glycosidic linkages.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: mannan catabolic process
Acc: GO:0046355
Aspect: Biological Process
Desc: The chemical reactions and pathways resulting in the breakdown of mannan, the main hemicellulose of soft (coniferous) wood, made up of D-mannose, D-glucose and D-galactose.
Synonyms:
  • mannan degradation
  • mannan breakdown
  • mannan catabolism
Proteins in PDR annotated with:
   This term: 0
   Term or descendants: 0


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0046355 - mannan catabolic process (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle