Mannanase

β-Mannosidase

β-Mannosidase

Protein-coding gene in humans


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

Hydrolysis of terminal, non-reducing β-D-mannose residues in β-D-mannosides
Quick Facts MANBA, Identifiers ...

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

  1. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  2. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  3. 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.
  4. 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.
  5. 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.
  6. 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.

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