EC Number |
Reaction |
Reference |
---|
3.2.1.157 | 4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhydro-2-O-sulfonato-alpha-D-galactopyranosyl-(1-3)-4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhydro-2-O-sulfonato-alpha-D-galactopyranosyl-(1-3)-4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhyd |
- |
- |
3.2.1.157 | 4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhydro-2-O-sulfonato-alpha-D-galactopyranosyl-(1-3)-4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhydro-2-O-sulfonato-alpha-D-galactopyranosyl-(1-3)-4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhyd |
inverting mechanism for the degradation of carrageenan by iota-carrageenases via single displacement reactions, overview |
753336 |
3.2.1.157 | 4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhydro-2-O-sulfonato-alpha-D-galactopyranosyl-(1-3)-4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhydro-2-O-sulfonato-alpha-D-galactopyranosyl-(1-3)-4-O-sulfonato-beta-D-galactopyranosyl-(1-4)-3,6-anhyd |
the enzyme hydrolyses the beta-(1->4) linkages in iota-carrageenans to produce a series of homologous, even-numbered oligosaccharides. The cleavage of glycosidic linkage catalyzed by iota-carrageenases also involves carboxylic acid-containing amino acid residues but, in contrast to kappa-carrageenases, it occurs via a direct, single displacement reaction by a water molecule, so that the configuration in the anomeric position is inverted |
-, 755018 |