The Chemical Reactions and Pathways Involving Carbohydrates Any of a Group of Organic Compounds Based of the General Formula Cx(h2o)y. Includes the Formation of Carbohydrate Derivatives by the Addition of a Carbohydrate Residue to Another Molecule.
A Protein Complex That Possesses Beta Galactosidase Activity I.e. Catalyzes the Hydrolysis of Terminal Non Reducing Beta D Galactose Residues in Beta D Galactosides. in E. Coli the Complex Is a Homotetramer; Dimeric and Hexameric Beta Galactosidase Complexes Have Been Observed in Other Species.
Catalysis of a Biochemical Reaction At Physiological Temperatures. in Biologically Catalyzed Reactions the Reactants Are Known As Substrates and the Catalysts Are Naturally Occurring Macromolecular Substances Known As Enzymes. Enzymes Possess Specific Binding Sites For Substrates and Are Usually Composed Wholly or Largely of Protein But RNA That Has Catalytic Activity (ribozyme) Is Often Also Regarded As Enzymatic.
Interacting Selectively and Non Covalently with Any Carbohydrate Which Includes Monosaccharides Oligosaccharides and Polysaccharides As Well As Substances Derived From Monosaccharides by Reduction of the Carbonyl Group (alditols) by Oxidation of One or More Hydroxy Groups to Afford the Corresponding Aldehydes Ketones or Carboxylic Acids or by Replacement of One or More Hydroxy Group(s) by a Hydrogen Atom. Cyclitols Are Generally Not Regarded As Carbohydrates.