ID   4.2.2.11
DE   guluronate-specific alginate lyase.
AN   alginase II.
AN   poly(alpha-L-guluronate) lyase.
CA   Eliminative cleavage of alginate to give oligosaccharides with 4-deoxy-
CA   alpha-L-erythro-hex-4-enuronosyl groups at their non-reducing ends and
CA   alpha-L-guluronate at their reducing end.
CC   -!- The enzyme catalyzes the degradation of alginate by a beta-
CC       elimination reaction.
CC   -!- It cleaves the (1->4) bond between alpha-L-guluronate and either
CC       alpha-L-guluronate or beta-D-mannuronate, generating oligosaccharides
CC       with 4-deoxy-alpha-L-erythro-hex-4-enuronosyl groups at their non-
CC       reducing ends and alpha-L-guluronate at the reducing end.
CC   -!- Depending on the composition of the substrate, the enzyme produces
CC       oligosaccharides ranging from two to six residues, with preference
CC       for shorter products. cf. EC 4.2.2.3.
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