β-Galactosidase
Family of glycoside hydrolase enzymes / From Wikipedia, the free encyclopedia
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β-Galactosidase (EC 3.2.1.23, lactase, beta-gal or β-gal; systematic name β-D-galactoside galactohydrolase) is a glycoside hydrolase enzyme that catalyzes hydrolysis of terminal non-reducing β-D-galactose residues in β-D-galactosides.
Quick Facts Identifiers, EC no. ...
β-Galactosidase | |||||||||
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Identifiers | |||||||||
EC no. | 3.2.1.23 | ||||||||
CAS no. | 9031-11-2 | ||||||||
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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Quick Facts Identifiers, Symbol ...
galactosidase, beta 1 | |||||||
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Identifiers | |||||||
Symbol | GLB1 | ||||||
Alt. symbols | ELNR1 | ||||||
NCBI gene | 2720 | ||||||
HGNC | 4298 | ||||||
OMIM | 230500 | ||||||
RefSeq | NM_000404 | ||||||
UniProt | P16278 | ||||||
Other data | |||||||
Locus | Chr. 3 p22.3 | ||||||
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β-Galactosides include carbohydrates containing galactose where the glycosidic bond lies above the galactose molecule. Substrates of different β-galactosidases include ganglioside GM1, lactosylceramides, lactose, and various glycoproteins.[1]