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Information on EC 4.2.2.11 - guluronate-specific alginate lyase

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EC Tree
     4 Lyases
         4.2 Carbon-oxygen lyases
             4.2.2 Acting on polysaccharides
                4.2.2.11 guluronate-specific alginate lyase
IUBMB Comments
The enzyme catalyses the degradation of alginate by a beta-elimination reaction. It cleaves the (1->4) bond between alpha-L-guluronate and either alpha-L-guluronate or beta-D-mannuronate, generating oligosaccharides with 4-deoxy-alpha-L-erythro-hex-4-enuronosyl groups at their non-reducing ends and alpha-L-guluronate at the reducing end. Depending on the composition of the substrate, the enzyme produces oligosaccharides ranging from two to six residues, with preference for shorter products. cf. EC 4.2.2.3, mannuronate-specific alginate lyase.
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Word Map
The expected taxonomic range for this enzyme is: Bacteria, Eukaryota
Synonyms
A1m, A9mC, A9mL, A9mT, Alg17C, Alg2A, Alg7D, AlgB, alginase II, alginate (poly-alpha-L-guluronate) lyase, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
Eliminative cleavage of alginate to give oligosaccharides with 4-deoxy-alpha-L-erythro-hex-4-enuronosyl groups at their non-reducing ends and alpha-L-guluronate at their reducing end
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PATHWAY SOURCE
PATHWAYS