catalog number :
MBS315025
products full name :
Rabbit A' Beta d Galactosidase
products short name :
Beta d Galactosidase (E. coli)
products name syn :
Rabbit Antibody to Beta-d-Galactosidase (E. coli)
other names :
beta-D-galactosidase; Beta-galactosidase; beta-D-galactosidase; Lactase
other gene names :
lacZ; lacZ; ECK0341; JW0335
uniprot entry name :
BGAL_ECOLI
specificity :
Beta d Galactosidase (E. coli). Assay by immunoelectrophoresis resulted in a single precipitin arc against anti-Rabbit Serum as well as purified and partially purified Beta Galactosidase (E. coli). Recognizes Beta-galactosidase from E. coli. Cross react
purity :
Delipidation, salt fractionation and ion-exchange chromatography followed by extensive dialysis against the buffer.
form :
Purified, Lyophilized. Reconstitute with 1ml of deionized water (or equivalent). Centrifuge product if not completely clear after standing at room temperature.
concentration :
10mg/ml (OD280nm) (prior to lyophilization)
storage stability :
Store lyophilized product at 2 to 8 degree C. After reconstitution, store for several weeks at 2 to 8 degree C as an undiluted liquid. Prepare working dilution only prior to immediate use. Long-term, aliquot and store at -20 degree C or below.
tested application :
EIA/ELISA, IEP, Immunohistochemistry - Formalin/Paraffin
other info1 :
Immunogen: Beta-Galactosidase (E. coli)
other info2 :
Buffer: Lyophilized from 0.02M Potassium phosphate, 0.15M Sodium chloride, pH 7.2. Preservative: 0.01% (w/v) Sodium azide. Lyophilized: Yes. Important Note: Centrifuge before opening to ensure complete recovery of vial contents. Warnings: This product contains sodium azide, which has been classified as Xn (Harmful), in European Directive 67/548/EEC in the concentration range of 0.1-1.0%. When disposing of this reagent through lead or copper plumbing, flush with copious volumes of water to prevent azide build-up in drains.
products categories :
Polyclonal Antibodies to Enzymes
products references :
Davidson, B.L., et al., (2000), "Recombinant adeno-associated virus type 2, 4 and 5 vectors: Transduction of variant cell types and regions in the mammalian central nervous system", PNAS, 97(7): 3428-3432
ncbi acc num :
NP_414878.1
ncbi gb acc num :
NC_000913.2
ncbi mol weight :
116,483 Da
ncbi pathways :
Galactose Metabolism Pathway (1012); Galactose Metabolism Pathway (292); Metabolic Pathways (131985); Other Glycan Degradation Pathway (1052); Other Glycan Degradation Pathway (346); Sphingolipid Metabolism Pathway (1065); Sphingolipid Metabolism Pathway (369); Lactose Degradation III Pathway (192); Lactose Degradation III Pathway (139429)
ncbi summary :
Repressed during biofilm formation. [More information is available at EcoGene: EG10527]. galacotsidase is a metalloenzyme exhibiting broad substrate specificity. [More information is available at EcoCyc: EG10527].
uniprot summary :
Catalytic activity: Hydrolysis of terminal non-reducing beta-D-galactose residues in beta-D-galactosides. HAMAP MF_01687. Cofactor: Binds 2 magnesium ions per monomer. Can also use manganese. Ref.9 Ref.13 Ref.20Binds 1 sodium ion per monomer. Ref.9 Ref.13 Ref.20. Enzyme regulation: Inhibited by phenylethyl thio-beta-D-galactoside (PETG), isopropyl thio-beta-D-galactoside (IPTG), L-ribose, D-galactonolactone, lactose and 2-amino-D-galactose. Ref.24. Subunit structure: Homotetramer. Ref.21. Induction: By allolactose. Ref.8 Ref.24. Sequence similarities: Belongs to the glycosyl hydrolase 2 family. Biophysicochemical propertiesKinetic parameters:The values for the enzymatic assays using manganese as cofactor are very close.KM=0.04 mM for p-nitrophenyl beta-D-galactoside Ref.9 Ref.14 Ref.15 Ref.17 Ref.18 Ref.24KM=0.12 mM for o-nitrophenyl beta-D-galactosideKM=0.15 mM for 2,3-dinitrophenyl beta-D-galactopyranosideKM=0.41 mM for 2,5-dinitrophenyl beta-D-galactopyranosideKM=11.6 mM for p-nitrophenol-alpha-L-arabinopyranosideKM=16.9 mM for p-nitrophenol-beta-D-fucopyranosideKM=34 uM for p-nitrophenyl beta-D-galactoside (with magnesium as cofactor and 30 degrees Celsius)KM=140 uM for o-nitrophenyl beta-D-galactoside (with magnesium as cofactor and 30 degrees Celsius)KM=940 uM for allolactose (with magnesium as cofactor and 30 degrees Celsius)KM=1350 uM for lactose (with magnesium as cofactor and 30 degrees Celsius)Vmax=30.9 umol/min/mg enzyme with lactose as substrate (with magnesium as cofactor and 30 degrees Celsius)Vmax=49.7 umol/min/mg enzyme with allolactose as substrate (with magnesium as cofactor and 30 degrees Celsius)Vmax=59.7 umol/min/mg enzyme with p-nitrophenyl beta-D-galactoside as substrate (with magnesium as cofactor and 30 degrees Celsius)Vmax=360 umol/min/mg enzyme with o-nitrophenyl beta-D-galactoside as substrate (with magnesium as cofactor and 30 degrees Celsius)