Beta-mannosidase

Mannosidase, beta A, lysosomal
Identifiers
Symbols	MANBA ; MANB1
External IDs	OMIM: 609489 MGI: 88175 HomoloGene: 4317 ChEMBL: 3903 GeneCards: MANBA Gene
EC number	3.2.1.25
Gene ontology Molecular function • beta-mannosidase activity • mannose binding Cellular component • lysosome • intracellular membrane-bounded organelle Biological process • carbohydrate metabolic process • cellular protein modification process • mannan catabolic process Sources: Amigo / QuickGO
Orthologs
Species	Human	Mouse
Entrez	4126	110173
Ensembl	ENSG00000109323	ENSMUSG00000028164
UniProt	O00462	Q8K2I4
RefSeq (mRNA)	NM_005908	NM_027288
RefSeq (protein)	NP_005899	NP_081564
Location (UCSC)	Chr 4: 102.63 – 102.76 Mb	Chr 3: 135.49 – 135.57 Mb
PubMed search

Beta-mannosidase
Identifiers
EC number	3.2.1.25
CAS number	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 / EGO
Search PMC articles PubMed articles NCBI proteins

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. "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. and 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. and 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. and 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. and Sawai, K. (1964). "The enzymatic hydrolysis of Leucaena glauca galactomannan. Isolation of crystalline galactomannan depolymerase". J. Biol. Chem. 239: 990–992. PMID 14165949.

Further reading

• Bolmstedt A, Sjölander S, Hansen JE; et al. (1996). "Influence of N-linked glycans in V4-V5 region of human immunodeficiency virus type 1 glycoprotein gp160 on induction of a virus-neutralizing humoral response". J. Acquir. Immune Defic. Syndr. Hum. Retrovirol. 12 (3): 213–20. doi:10.1097/00042560-199607000-00001. PMID 8673525.
• Kalsi G, Kuo PH, Aliev F; et al. (2010). "A systematic gene-based screen of chr4q22-q32 identifies association of a novel susceptibility gene, DKK2, with the quantitative trait of alcohol dependence symptom counts". Hum. Mol. Genet. 19 (12): 2497–506. doi:10.1093/hmg/ddq112. PMC 2876884. PMID 20332099.
• Levade T, Graber D, Flurin V; et al. (1994). "Human beta-mannosidase deficiency associated with peripheral neuropathy". Ann. Neurol. 35 (1): 116–9. doi:10.1002/ana.410350119. PMID 8285582.
• Hu H, Shioda T, Moriya C; et al. (1996). "Infectivities of human and other primate lentiviruses are activated by desialylation of the virion surface". J. Virol. 70 (11): 7462–70. PMC 190813. PMID 8892864.
• Yeh JC, Seals JR, Murphy CI; et al. (1993). "Site-specific N-glycosylation and oligosaccharide structures of recombinant HIV-1 gp120 derived from a baculovirus expression system". Biochemistry 32 (41): 11087–99. doi:10.1021/bi00092a019. PMID 8218172.
• Sabourdy F, Labauge P, Stensland HM; et al. (2009). "A MANBA mutation resulting in residual beta-mannosidase activity associated with severe leukoencephalopathy: a possible pseudodeficiency variant". BMC Med. Genet. 10: 84. doi:10.1186/1471-2350-10-84. PMC 2745377. PMID 19728872.
• Hosgood HD, Zhang L, Shen M; et al. (2009). "Association between genetic variants in VEGF, ERCC3 and occupational benzene haematotoxicity". Occup Environ Med 66 (12): 848–53. doi:10.1136/oem.2008.044024. PMC 2928224. PMID 19773279.
• Alkhayat AH, Kraemer SA, Leipprandt JR; et al. (1998). "Human beta-mannosidase cDNA characterization and first identification of a mutation associated with human beta-mannosidosis". Hum. Mol. Genet. 7 (1): 75–83. doi:10.1093/hmg/7.1.75. PMID 9384606.
• Kimura K, Wakamatsu A, Suzuki Y; et al. (2006). "Diversification of transcriptional modulation: large-scale identification and characterization of putative alternative promoters of human genes". Genome Res. 16 (1): 55–65. doi:10.1101/gr.4039406. PMC 1356129. PMID 16344560.
• Papandreou MJ, Fenouillet E (1997). "Effect of various glycosidase treatments on the resistance of the HIV-1 envelope to degradation". FEBS Lett. 406 (1–2): 191–5. doi:10.1016/S0014-5793(97)00273-1. PMID 9109416.
• Gao J, Arbman G, He L; et al. (2008). "MANBA polymorphism was related to increased risk of colorectal cancer in Swedish but not in Chinese populations". Acta Oncol 47 (3): 372–8. doi:10.1080/02841860701644052. PMID 17899454.
• Robinson WE, Montefiori DC, Mitchell WM (1987). "Evidence that mannosyl residues are involved in human immunodeficiency virus type 1 (HIV-1) pathogenesis". AIDS Res. Hum. Retroviruses 3 (3): 265–82. doi:10.1089/aid.1987.3.265. PMID 2829950.
• Montefiori DC, Robinson WE, Mitchell WM (1988). "Role of protein N-glycosylation in pathogenesis of human immunodeficiency virus type 1". Proc. Natl. Acad. Sci. U.S.A. 85 (23): 9248–52. doi:10.1073/pnas.85.23.9248. PMC 282716. PMID 3264072.
• Gerhard DS, Wagner L, Feingold EA; et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
• Fenouillet E, Jones I, Powell B; et al. (1993). "Functional role of the glycan cluster of the human immunodeficiency virus type 1 transmembrane glycoprotein (gp41) ectodomain". J. Virol. 67 (1): 150–60. PMC 237347. PMID 8093218.
• Strausberg RL, Feingold EA, Grouse LH; et al. (2002). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Land A, Braakman I (2001). "Folding of the human immunodeficiency virus type 1 envelope glycoprotein in the endoplasmic reticulum". Biochimie 83 (8): 783–90. doi:10.1016/S0300-9084(01)01314-1. PMID 11530211.
• Blough HA, Pauwels R, De Clercq E; et al. (1986). "Glycosylation inhibitors block the expression of LAV/HTLV-III (HIV) glycoproteins". Biochem. Biophys. Res. Commun. 141 (1): 33–8. doi:10.1016/S0006-291X(86)80330-8. PMID 3099781.
• Hart ML, Saifuddin M, Spear GT (2003). "Glycosylation inhibitors and neuraminidase enhance human immunodeficiency virus type 1 binding and neutralization by mannose-binding lectin". J. Gen. Virol. 84 (Pt 2): 353–60. doi:10.1099/vir.0.18734-0. PMID 12560567.