Entry
Name
Class
Hydrolases;
Glycosylases;
Glycosidases, i.e. enzymes that hydrolyse O- and S-glycosyl compounds
BRITE hierarchy
Sysname
beta-1,2-D-mannoside mannohydrolase
Reaction(IUBMB)
beta-D-mannopyranosyl-(1->2)-beta-D-mannopyranosyl-(1->2)-D-mannopyranose + H2O = beta-D-mannopyranosyl-(1->2)-D-mannopyranose + alpha-D-mannopyranose [RN:
R11544 ]
Reaction(KEGG)
Substrate
beta-D-mannopyranosyl-(1->2)-beta-D-mannopyranosyl-(1->2)-D-mannopyranose [CPD:
C21454 ];
H2O [CPD:
C00001 ]
Product
beta-D-mannopyranosyl-(1->2)-D-mannopyranose [CPD:
C21336 ];
alpha-D-mannopyranose [CPD:
C00936 ]
Comment
The enzyme, characterized from multiple bacterial species, catalyses the hydrolysis of terminal, non-reducing D-mannose residues from beta-1,2-mannotriose and beta-1,2-mannobiose. The mechanism involves anomeric inversion, resulting in the release of alpha-D-mannopyranose. Activity with beta-1,2-mannotriose or higher oligosaccharides is higher than that with beta-1,2-mannobiose.
History
EC 3.2.1.197 created 2016
Orthology
Genes
BTHO : Btheta7330_00213 Btheta7330_04130 Btheta7330_04506
BOA : Bovatus_02994 Bovatus_03907 Bovatus_04344
BCAE : A4V03_00905 A4V03_17495
BFE : K6V30_03355 K6V30_07380 K6V30_08880
BFC : BacF7301_04540 BacF7301_07610
PROJ : KDN43_09410 KDN43_13445
SMUI : I6J00_03310 I6J00_17920
MSAB : SNE25_05025 SNE25_15985
» show all
Taxonomy
Reference
Authors
Cuskin F, Basle A, Ladeveze S, Day AM, Gilbert HJ, Davies GJ, Potocki-Veronese G, Lowe EC
Title
The GH130 Family of Mannoside Phosphorylases Contains Glycoside Hydrolases That Target beta-1,2-Mannosidic Linkages in Candida Mannan.
Journal
Sequence
Reference
Authors
Nihira T, Chiku K, Suzuki E, Nishimoto M, Fushinobu S, Kitaoka M, Ohtsubo K, Nakai H
Title
An inverting beta-1,2-mannosidase belonging to glycoside hydrolase family 130 from Dyadobacter fermentans.
Journal
Sequence
Other DBs
ExPASy - ENZYME nomenclature database: 3.2.1.197