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ENZYME entry: EC 1.14.99.55

Accepted Name
Lytic starch monooxygenase.
Alternative Name(s)
LPMO.
Reaction catalysed
Starch + reduced acceptor + O(2) <=> D-glucono-1,5-lactone-terminated malto-oligosaccharides + short-chain malto-oligosaccharides + acceptor + H(2)O
Cofactor(s)
Cu(+).
Comment(s)
  • The enzyme cleaves starch in an oxidative manner.
  • It releases fragments of starch with a D-glucono-1,5-lactone at the reducing end.
  • The initially formed alpha-D-glucono-1,5-lactone at the reducing end of the shortend amylose chain quickly hydrolyzes spontaneously to the aldonic acid.
  • In vitro ascorbate has been found to be able to serve as reducing agent.
Cross-references
BRENDA1.14.99.55
EC2PDB1.14.99.55
ExplorEnz1.14.99.55
PRIAM enzyme-specific profiles1.14.99.55
KEGG Ligand Database for Enzyme Nomenclature1.14.99.55
IUBMB Enzyme Nomenclature1.14.99.55
IntEnz1.14.99.55
MEDLINEFind literature relating to 1.14.99.55
MetaCyc1.14.99.55
Rhea expert-curated reactions1.14.99.55

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