Lambda-carrageenase
Definition:
EC Tree > 3 Hydrolases > 3.2 Glycosylases > 3.2.1 Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds > 3.2.1.162 lambda-carrageenase
Lambda-carrageenase is a marine endo-glycosidase from Pseudoalteromonas sp. specific for lambda-carrageenan, which endohydrolyses (1->4)-beta-linkages in the lambda-carrageenan backbone to yield the tetrasaccharide alpha-D-Gal-p2,6S2-(1->3)-beta-D-Gal-p2S-(1->4)-alpha-D-Gal-p2,6S2-(1->3)-D-Gal-p2-S; iota-carrageenan (EC 3.2.1.157), kappa-carrageenan (EC 3.2.1.83), agarose and porphyran are not substrates. By cleaving the highly sulfated lambda-carrageenan it supports marine bacteria utilisation of red-algal sulfated galactans. It is distributed across Bacteria and Eukaryota.
Lambda-carrageenase is a marine endo-glycosidase from Pseudoalteromonas sp. specific for lambda-carrageenan, which endohydrolyses (1->4)-beta-linkages in the lambda-carrageenan backbone to yield the tetrasaccharide alpha-D-Gal-p2,6S2-(1->3)-beta-D-Gal-p2S-(1->4)-alpha-D-Gal-p2,6S2-(1->3)-D-Gal-p2-S; iota-carrageenan (EC 3.2.1.157), kappa-carrageenan (EC 3.2.1.83), agarose and porphyran are not substrates. By cleaving the highly sulfated lambda-carrageenan it supports marine bacteria utilisation of red-algal sulfated galactans. It is distributed across Bacteria and Eukaryota.
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