KEGG   ENZYME: 3.2.1.159Help
Entry
EC 3.2.1.159                Enzyme                                 

Name
alpha-neoagaro-oligosaccharide hydrolase;
alpha-neoagarooligosaccharide hydrolase;
alpha-NAOS hydrolase
Class
Hydrolases;
Glycosylases;
Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
BRITE hierarchy
Sysname
alpha-neoagaro-oligosaccharide 3-glycohydrolase
Reaction(IUBMB)
Hydrolysis of the (1->3)-alpha-L-galactosidic linkages of neoagaro-oligosaccharides that are smaller than a hexamer, yielding 3,6-anhydro-L-galactose and D-galactose
Comment
When neoagarohexaose is used as a substrate, the oligosaccharide is cleaved at the non-reducing end to produce 3,6-anhydro-L-galactose and agaropentaose, which is further hydrolysed to agarobiose and agarotriose. With neoagarotetraose as substrate, the products are predominantly agarotriose and 3,6-anhydro-L-galactose. In Vibrio sp. the actions of EC 3.2.1.81, beta-agarase and EC 3.2.1.159 can be used to degrade agarose to 3,6-anhydro-L-galactose and D-galactose.
History
EC 3.2.1.159 created 2006
Reference
1  [PMID:7961439]
  Authors
Sugano Y, Kodama H, Terada I, Yamazaki Y, Noma M.
  Title
Purification and characterization of a novel enzyme, alpha-neoagarooligosaccharide hydrolase (alpha-NAOS hydrolase), from a marine bacterium, Vibrio sp. strain JT0107.
  Journal
J. Bacteriol. 176 (1994) 6812-8.
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 
CAS: 
60063-77-6

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