| Identification | Back Directory | [Name]
BETA1,4-GALACTOSIDASE | [CAS]
9031-11-2 | [Synonyms]
s2107
sl396
LACTASE
lactozym
maxilact
oryzatym
sumiklat
tilactase
hydrolact
LACTASE F
GALACTOSYL
EC 3.2.1.23
IUB: 3.2.1.23
β-Galactosidas
agalsidase alfa
B-GALACTOSIDASE
beta-lactosidase
beta-galactosidas
Galactosidase, b-
Lactozyme? 2600 L
β-D-Galactosidase
beta-d-lactosidase
BETA-GALACTOSIDASE
b1,6-Galactosidase
GALACTOSIDASE, BETA
Galatosidase,EColi.
BETA1,3-GALATOSIDASE
BETA-D-GALACTOSIDASE
BETA1,4-GALACTOSIDASE
BETA1,3-GALACTOSIDASE
BETA(1-6)GALACTOSIDASE
1,4-BETA-GALACTOSIDASE
BETA1-3,6-GALACTOSIDASE
b-Galactosidase, E. coli
SUPPLEMENTALLACTASEENZYME
BETA-GALACTOSIDASE, E COLI
GALACTOSIDASE, BETA-, E COLI
BETA-1->(3,4,6)-GALACTOSIDASE
KLUYVEROMYCESMARXIANUSLACTASE
Lactase, Lactozyme(R) 3000 L
β-Galactosidase [ 400 units/mg]
beta-galactosidase from E. coli
LACTASE FROM ASPERGILLUS ORYZAE,
β-galactosidase from bovine liver
β-galactosidase from bovine testes
B-GALACTOSIDASE FROM BOVINE TESTES
beta-Galactosidase Escherichia coli
BETA-D-GALACTOSIDE GALACTOHYDROLASE
BETA-GALACTOSIDASE, 300-400 UNITS MG
β-galactosidase from escherichia coli
beta-Galactosidase Aspergillus oryzae
B-GALACTOSIDASE FROM ESCHERICHIA COLI
B-GALACTOSIDASE, POSITIONALLY SEPCIFIC
B-GALACTOSIDASE, POSITIONALLY SPECIFIC
BETA1,4-D-GALACTOSIDE GALACTOHYDROLASE
BETA1,6-D-GALACTOSIDE GALACTOHYDROLASE
B-GALACTOSIDASE FROM ASPERGILLUS ORYZAE
β-galactosidase from aspergillus oryzae
BETA-GALATOSIDASE FROM*KLUYVEROMYCES LAC
B-GALACTOSIDASE PRESTAINED FROM ESCHERI
B-GALACTOSIDASE GRADE X FROM ESCHERICHIA
BETA1-3,6-D-GALACTOSIDE GALACTOHYDROLASE
BETA-GALACTOSIDASE, POSITIONALLY SPECIFIC
beta-Galactosidase Kluyveromyces fragilis
β-galactosidase from kluyveromyces lactis
Lactase (200 mg) (COLD SHIPMENT REQUIRED)
GAL/β-Galactosidase froM Escherichia coli
β-1→4-galactosidase, positionally specific
β-1→6-galactosidase, positionally specific
BETA-GALACTOSIDASE FROM E. COLI, >400 U MG
b1-3,6-Galactosidase, Recombinant, E. coli
β-galactosidase from kluyveromyces fragilis
β-galactosidase from saccharomyces fragilis
B-galactosidase from diplococcus*pneumoniae
β-D-Galactoside galactohydrolase, Lactase
B-GALACTOSIDASE FROM SACCHAROMYCES*FRAGI LIS
LACTASE FROM ASPERGILLUS ORYZAE, 5000+ UNITSG
Lactase (beta-D-galactoside galactohydrolase)
β-1→(3,6)-galactosidase, positionally specific
beta-galactosidase from kluyveromyces fragilis
B-GALACTOSIDASE GRADE VI FROM*ESCHERICHI A COLI
BETA1,4-GALACTOSIDASE, STREPTOCOCCUS PNEUMONIAE
β-1→(3,4,6)-galactosidase, positionally specific
BETA-GALACTOSIDASE 50 UNITS MG PARTIALLY PURIFED
B-GALACTOSIDASE GRADE VIII FROM*ESCHERIC HIA COLI
B-GALACTOSIDASE GRADE III CRUDE FROM*BOV INE LIVER
b1,4-Galactosidase, S. pneumoniae, Recomb., E. coli
B-GALACTOSIDASE RECOMBINANT FROM*E. COLI OVERPRODUC
B-GALACTOSIDASE FROM ESCHERICHIA COLI*FO R SDS ELECT
BETA-GALACTOSIDASE FROM KLUYVEROMYCES FR AGILIS, ~5 U/MG
BETA-GALACTOSIDASE FROM E. COLI, LYOPH., STAB.,~140 U/MG
β-Galactosidase from bovine liver,β-D-Galactoside galactohydrolase
β-Galactosidase from Kluyveromyces lactis,Lactase, Lactozyme 2600 L
β-Galactosidase from bovine testes,β-D-Galactoside galactohydrolase
B-GALACTOSIDASE E. COLI CONJUGATION GRADE, LARGER THAN 600 UNITS MG
β(1→4)-Galactosidase, positionally specific froM Streptococcus pneuMoniae
β-(1→3,6)-Galactosidase, positionally specific from Xanthomonas manihotis
β-Galactosidase from Escherichia coli,β-D-Galactoside galactohydrolase, Lactase
β-D-Galactoside galactohydrolase, Lactase F, Lactase from Aspergillus oryzae
β-Galactosidase from Aspergillus oryzae,β-D-Galactoside galactohydrolase, Lactase F, Lactase from Aspergillus oryzae | [EINECS(EC#)]
232-864-1 | [Molecular Formula]
NULL | [MDL Number]
MFCD01092684 |
| Hazard Information | Back Directory | [Chemical Properties]
White to tan powder | [Usage]
β-Galactosidase from bovine testes was used for coupling to Sepharose. | [Usage]
β-Galactosidase is conjugated to an antibody which specifically recognizes a target molecule (enzyme immunoassay or EIA). 1 β-Galactosidase is also used as a reporter enzyme to monitor the level of gene expression of a promoter. 2 It may be used as a positive control protein with anti-β-galactosidase antibodies. | [Usage]
β-Galactosidase is used in the enzymatic assays in the synthesis of imidazolo-pyrrolidinoses. | [Usage]
β-Galactosidase may be used for derivatization, such as an enzyme label for IgG, without prior dialysis or gel filtration. | [Usage]
β-Galactosidase was used for reversed-phase (RP) adsorption. 1 It was also used in the hydrolysis of whey lactose. | [Usage]
β-galactosidase was used in the production of a stabilized, single reagent for alcohol analysis. | [Uses]
β-Galactosidase from bovine testes was used for coupling to Sepharose. | [Uses]
β-Galactosidase is conjugated to an antibody which specifically recognizes a target molecule (enzyme immunoassay or EIA). 1 β-Galactosidase is also used as a reporter enzyme to monitor the level of gene expression of a promoter. 2 It may be used as a positive control protein with anti-β-galactosidase antibodies. | [Uses]
β-Galactosidase is used in the enzymatic assays in the synthesis of imidazolo-pyrrolidinoses. | [Uses]
β-Galactosidase may be used for derivatization, such as an enzyme label for IgG, without prior dialysis or gel filtration. | [Uses]
β-Galactosidase was used for reversed-phase (RP) adsorption. 1 It was also used in the hydrolysis of whey lactose. | [Uses]
β-galactosidase was used in the production of a stabilized, single reagent for alcohol analysis. | [Definition]
ChEBI: Beta-D-galactose is a D-galactopyranose having beta-configuration at the anomeric centre. It has a role as an epitope and a mouse metabolite. It is an enantiomer of a beta-L-galactose. | [Brand name]
Replagal (Transkaryotic Therapies). | [Biotechnological Production]
b-D-Galactosidase (b-D-galactoside galactohydrolase, EC 3.2.1.23) hydrolyses the
glycosidic bond of the disaccharide lactose into its monomers glucose and galactose.
Therefore, b-D-galactosidase is also known as lactase. b-D-Galactosidases
can be found throughout nature. Commercial enzymes are mainly of fungal origin
of the genera Kluyveromyces (yeast) and Aspergillus (filamentous ascomycete). Although several b-D-galactosidases are available on the market, new efforts
are still conducted to improve the enzymatic properties by site-directed mutagenesis or to find new b-D-galactosidase genes by screening metagenome databases.
From a technological point of view, the milk sugar lactose is hydrolyzed
because of the resulting increase of sweetness and the reduced susceptibility to
crystallization during spray drying of milk and whey. Nevertheless, the
most apparent application is the production of ‘‘lactose-free’’ milk products, which
enables the consumption of dairy products by lactose-intolerant people.
For industrial processes, b-D-galactosidases can be applied by immobilization
of the enzyme on carriers, such as cellulose, alginate, or other polymers, for
hydrolysis of milk or whey products. Conversion rates of lactose in batch and
continuous operation mode by immobilized b-D-galactosidase might reach 95 %. To reach even lower lactose concentrations of less than 0.01 %, a combination
of b-D-galactosidase activity and ultrafiltration as well as nanofiltration
methods can be used. Besides the degradation of substances that lead to food
intolerances, the elimination of food allergens by means of a specific degradation
of allergenic epitopes is another promising application of enzymes. | [General Description]
The GLB1 (β-Galactosidase) gene is mapped to human chromosome 3p22.3. The encoded protein belongs to glycosyl hydrolase 35 family and is localized to lysosomes. | [Biochem/physiol Actions]
Releases β(1→3)- and β(1→6)-linked galactose from the non-reducing end of complex oligosaccharides. | [Purification Methods]
It is purified 600-fold by (NH4)2SO4 precipitation, acetone fractionation and affinity chromatography on agarose substituted with terminal thio-.-galactopyranosyl residues. [Distlern & Jourdian J Biol Chem 248 6772 1973.] |
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