|Superclasses:||Reactions Classified By Conversion Type → Simple Reactions → Chemical Reactions|
|Reactions Classified By Substrate → Small-Molecule Reactions|
EC Number: 18.104.22.168
Enzymes and Genes:
|Sphingomonas sp. A1:||alginate lyase II: aly|
In Pathway: alginate degradation
The direction shown, i.e. which substrates are on the left and right sides, is in accordance with the Enzyme Commission system.
Mass balance status: Marked as unbalanced.
Enzyme Commission Primary Name: poly(α-L-guluronate) lyase
Enzyme Commission Synonyms: alginase II, guluronate lyase, L-guluronan lyase, L-guluronate lyase, poly-α-L-guluronate lyase, polyguluronate-specific alginate lyase, poly(α-L-1,4-guluronide) exo-lyase
Enzyme Commission Summary:
The enzyme catalyses the degradation of alginate by a β-elimination reaction. It cleaves the (1→4) bond between α-L-guluronate and either α-L-guluronate or β-D-mannuronate, generating oligosaccharides with 4-deoxy-α-L-erythro-hex-4-enuronosyl groups at their non-reducing ends and α-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 22.214.171.124, poly(β-D-mannuronate) lyase.
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