Beta-mannosidase

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VALUE_ERROR (nil)
Identifiers
Aliases
External IDsGeneCards: [1]
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

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RefSeq (protein)

n/a

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Location (UCSC)n/an/a
PubMed searchn/an/a
Wikidata
View/Edit Human
Beta-mannosidase
Identifiers
EC number3.2.1.25
CAS number9025-43-8
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO

Beta-mannosidase (EC 3.2.1.25, mannanase, mannase, beta-D-mannosidase, beta-mannoside mannohydrolase, exo-beta-D-mannanase, lysosomal beta A mannosidase) is an enzyme with systematic name beta-D-mannoside mannohydrolase, which is in humans encoded by the MANBA gene.[1][2][3][4][5][6] This enzyme catalyses the following chemical reaction

Hydrolysis of terminal, non-reducing beta-D-mannose residues in beta-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 beta-mannosidosis, a lysosomal storage disease that has a wide spectrum of neurological involvement.[1]

References

  1. 1.0 1.1 "Entrez Gene: mannosidase".
  2. Chen H, Leipprandt JR, Traviss CE, Sopher BL, Jones MZ, Cavanagh KT, Friderici KH (February 1995). "Molecular cloning and characterization of bovine beta-mannosidase". J. Biol. Chem. 270 (8): 3841–8. doi:10.1074/jbc.270.8.3841. PMID 7876128.
  3. Adams, M.; Richtmyer, N.K. & Hudson, C.S. (1943). "Some enzymes present in highly purified invertase preparations; a contribution to the study of fructofuranosidases, galactosidases, glucosidases and mannosidases". J. Am. Chem. Soc. 65 (7): 1369–1380. doi:10.1021/ja01247a029.
  4. Bartholomew, B.A. & Perry, A.L. (1973). "The properties of synovial fluid β-mannosidase activity". Biochim. Biophys. Acta. 315 (1): 123–127. doi:10.1016/0005-2744(73)90136-8. PMID 4743897.
  5. Deuel, H.; Lewuenberger, R. & Huber, G. (1950). "Über den enzymatischen Abbau von Carubin, dem Galaktomannan aus Ceratonia siliqua L". Helv. Chim. Acta. 33 (4): 942–946. doi:10.1002/hlca.19500330424.
  6. Hylin, J.W. & Sawai, K. (1964). "The enzymatic hydrolysis of Leucaena glauca galactomannan. Isolation of crystalline galactomannan depolymerase". J. Biol. Chem. 239: 990–992. PMID 14165949.

External links

Further reading