β-Mannosidase (EC 3.2.1.25}, mannanase, mannase, β-D-mannosidase, β-mannoside mannohydrolase, exo-β-D-mannanase, lysosomal β A mannosidase) is an enzyme with systematic name β-D-mannoside mannohydrolase, which is in humans encoded by the MANBA gene.[5][6][7][8][9][10] This enzyme catalyses the following chemical reaction
MANBA | |||||||||||||||||||||||||||||||||||||||||||||||||||
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Identifiers | |||||||||||||||||||||||||||||||||||||||||||||||||||
Aliases | MANBA, MANB1, mannosidase beta | ||||||||||||||||||||||||||||||||||||||||||||||||||
External IDs | OMIM: 609489; MGI: 88175; HomoloGene: 4317; GeneCards: MANBA; OMA:MANBA - orthologs | ||||||||||||||||||||||||||||||||||||||||||||||||||
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β-Mannosidase | |||||||||
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Identifiers | |||||||||
EC no. | 3.2.1.25 | ||||||||
CAS no. | 9025-43-8 | ||||||||
Databases | |||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB structures | RCSB PDB PDBe PDBsum | ||||||||
Gene Ontology | AmiGO / QuickGO | ||||||||
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- Hydrolysis of terminal, non-reducing β-D-mannose residues in β-D-mannosides
This gene encodes a member of the glycosyl hydrolase 2 family. The encoded protein localizes to the lysosome where it is the final exoglycosidase in the pathway for N-linked glycoprotein oligosaccharide catabolism. Mutations in this gene are associated with β-mannosidosis, a lysosomal storage disease that has a wide spectrum of neurological involvement.[5]
References
Further reading
External links
- Human MANBA genome location and MANBA gene details page in the UCSC Genome Browser.
- Overview of all the structural information available in the PDB for UniProt: Q8K2I4 (Mouse Beta-mannosidase) at the PDBe-KB.