Poly(alpha-L-guluronate) lyase
| poly(alpha-L-guluronate) lyase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 4.2.2.11 | ||||||||
| CAS number | Template:CAS | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / EGO | ||||||||
|
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In enzymology, a poly(alpha-L-guluronate) lyase (EC 4.2.2.11) is an enzyme that catalyzes the chemical reaction
- Eliminative cleavage of polysaccharides containing a terminal alpha-L-guluronate group, to give oligosaccharides with 4-deoxy-alpha-L-erythro-hex-4-enuronosyl groups at their non-reducing ends
This enzyme belongs to the family of lyases, specifically those carbon-oxygen lyases acting on polysaccharides. The systematic name of this enzyme class is poly(alpha-L-1,4-guluronide) exo-lyase. Other names in common use include alginase II, guluronate lyase, L-guluronan lyase, L-guluronate lyase, poly-alpha-L-guluronate lyase, and polyguluronate-specific alginate lyase.
Structural studies
As of late 2007, only one structure has been solved for this class of enzymes, with the PDB accession code 1UAI.
References
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