Mannan 1,2-(1,3)-α-mannosidase explained

Mannan 1,2-(1,3)-α-mannosidase
Ec Number:	3.2.1.77
Cas Number:	37288-53-2

Mannan 1,2-(1,3)-α-mannosidase (exo-1,2-1,3-α-mannosidase, 1,2-1,3-α-D-mannan mannohydrolase) is an enzyme with systematic name (1→2)-(1→3)-α-D-mannan mannohydrolase.^{[1] [2]} It catalyses the hydrolysis of (1→2)- and (1→3)-linkages in yeast mannan, releasing mannose.

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

Notes and References

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