The Enzyme Database

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EC 3.2.1.70     
Accepted name: glucan 1,6-α-glucosidase
Reaction: Hydrolysis of (1→6)-α-D-glucosidic linkages in (1→6)-α-D-glucans and derived oligosaccharides
Other name(s): exo-1,6-β-glucosidase; glucodextrinase; glucan α-1,6-D-glucohydrolase
Systematic name: glucan 6-α-D-glucohydrolase
Comments: Hydrolysis is accompanied by inversion at C-1, so that new reducing ends are released in the β-configuration. Dextrans and isomaltosaccharides are hydrolysed, as is isomaltose, but very slowly. The enzyme from some sources also possesses the activity of EC 3.2.1.59 (glucan endo-1,3-α-glucosidase).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number: 37288-48-5
References:
1.  Ohya, T., Sawai, T., Uemura, S. and Abe, K. Some catalytic properties of an exo-1,6-α-glucosidase (glucodextranase) from Arthrobacter globiformis I42. Agric. Biol. Chem. 42 (1978) 571–577.
2.  Sawai, T., Yamaki, T. and Ohya, T. Preparation and some properties of Arthrobacter globiformis exo-1,6-α-glucosidase. Agric. Biol. Chem. 40 (1976) 1293–1299.
3.  Walker, G.J. and Pulkownik, A. Degradation of dextrans by an α-1,6-glucan glucohydrolase from Streptococcus mitis. Carbohydr. Res. 29 (1973) 1–14. [DOI] [PMID: 4356399]
[EC 3.2.1.70 created 1972, modified 2001]
 
 


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