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Beta glucosidase 3AHX.png
The structure of beta-glucosidase A from bacterium Clostridium cellulovorans.[1]
EC number
CAS number 9001-22-3
IntEnz IntEnz view
ExPASy NiceZyme view
MetaCyc metabolic pathway
PRIAM profile
PDB structures RCSB PDB PDBe PDBsum
Gene Ontology AmiGO / EGO

Beta-glucosidase catalyzes the hydrolysis of the glycosidic bonds to terminal non-reducing residues in beta-D-glucosides and oligosaccharides, with release of glucose.[2]

Synonyms, derivatives, and related enzymes include gentiobiase, cellobiase, emulsin, elaterase, aryl-beta-glucosidase, beta-D-glucosidase, beta-glucoside glucohydrolase, arbutinase, amygdalinase, p-nitrophenyl beta-glucosidase, primeverosidase, amygdalase, linamarase, salicilinase, and beta-1,6-glucosidase.

Cellulose is a polymer composed of beta-1,4-linked glucosyl residues. Cellulases (endoglucanases), cellobiosidases (exoglucanases), and beta-glucosidases are required by organisms (some fungi, bacteria) that can consume it. These enzymes are powerful tools for degradation of plant cell walls by pathogens and other organisms consuming plant biomass.

glucosidase, beta, acid 3 (cytosolic)
Symbol GBA3
Alt. symbols CBGL1, KLRP
Entrez 57733
HUGO 19069
OMIM 606619
RefSeq NM_020973
UniProt Q9H227
Other data
EC number
Locus Chr. 4 p15.31


  1. ^ PDB: 3AHX​; Jeng, W.-Y., Wang, N.-C., Lin, M.-H., Lin, C.-T., Liaw, Y.-C., Chang, W.-J., Liu, C.-I., Liang, P.-H., Wang, A.H.-J. (August 2010). "Structural and functional analysis of three beta-glucosidases from bacterium Clostridium cellulovorans, fungus Trichoderma reesei and termite Neotermes koshunensis.". J.Struc.Biol. 173 (1): 46–56. doi:10.1016/j.jsb.2010.07.008. PMID 20682343. ; rendered via PyMOL.
  2. ^ Cox, Michael; Lehninger, Albert L; Nelson, David R. (2000). Lehninger principles of biochemistry. New York: Worth Publishers. pp. 306–308. ISBN 1-57259-931-6. 

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