Mannan 1,2-(1,3)-a-mannosidase

Mannan 1,2-(1,3)-alpha-mannosidase (EC 3.2.1.77, exo-1,2-1,3-alpha-mannosidase, 1,2-1,3-alpha-D-mannan mannohydrolase) is an enzyme with systematic name (1->2)-(1->3)-alpha-D-mannan mannohydrolase.[1][2] This enzyme catalyses the following chemical reaction

Hydrolysis of (1->2)- and (1->3)-linkages in yeast mannan, releasing mannose

Mannan 1,2-(1,3)-alpha-mannosidase
Identifiers
EC number3.2.1.77
CAS number37288-53-2
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum

A 1,6-alpha-D-mannan backbone remains after action on yeast mannan.

References

  1. Jones GH, Ballou CE (February 1969). "Studies on the structure of yeast mannan. I. Purification and some properties of an alpha-mannosidase from an arthrobacter species". The Journal of Biological Chemistry. 244 (3): 1043–51. PMID 5769177.
  2. Jones GH, Ballou CE (February 1969). "Studies on the structure of yeast mannan. II. Mode of action of the Arthrobacter alpha-mannosidase on yeast mannan". The Journal of Biological Chemistry. 244 (3): 1052–9. PMID 5814027.
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