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Merck

G4142

β-Galactosidase from bovine testes

ammonium sulfate suspension, 1.0-3.0 units/mg protein (modified Warburg-Christian)

Sinónimos:

β-D-Galactoside galactohydrolase

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About This Item

Número CAS:
9031-11-2
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-864-1
MDL number:
MFCD00130623
Número CE:
3.2.1.23 (BRENDA, IUBMB)

Nombre del producto

β-Galactosidase from bovine testes, ammonium sulfate suspension, 1.0-3.0 units/mg protein (modified Warburg-Christian)

biological source

bovine

form

ammonium sulfate suspension

specific activity

1.0-3.0 units/mg protein (modified Warburg-Christian)

foreign activity

α- and β-glucosidase ≤0.2%
α-fucosidase ≤0.2%
α-galactosidase ≤0.2%
α-mannosidase ≤0.2%
β-N-acetylglucosaminidase ≤1.0%

storage temp.

2-8°C

Quality Level

200

Categorías relacionadas

Application

β-Galactosidase from bovine testes was used for coupling to Sepharose.

Biochem/physiol Actions

β-galactosidase cleaves lactose into its monosaccharide components, glucose and galactose. It also catalyses the transglycosylation of glucose into allolactose, the inducer of β-galactosidase, in a feedback loop.

Other Notes

One unit will hydrolyze 1.0 μmole of p-nitrophenyl β-D-galactopyranoside to p-nitrophenol and D-galactopyranose per min at pH 4.4 at 25 °C.

Physical form

Suspension in 3.2 M (NH4)2SO4, pH approx. 5.0

Clase de almacenamiento

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
0000500178
0000500178
0000500176
0000500176
0000375706

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W Kiess et al.
The Journal of biological chemistry, 263(19), 9339-9344 (1988-07-05)
Cloning and sequencing of the human type II insulin-like growth factor (IGF) receptor cDNA revealed an 80% deduced amino acid sequence homology with the bovine cation-independent mannose 6-phosphate (Man-6-P) receptor, suggesting identity of the two receptors (Morgan, D. O., Edman
The purification and properties of beta-galactosidase from bovine testes.
J J Distler et al.
The Journal of biological chemistry, 248(19), 6772-6780 (1973-10-10)
D H Juers et al.
Protein science : a publication of the Protein Society, 8(1), 122-136 (1999-04-21)
Beta-galactosidase (lacZ) from Escherichia coli is a 464 kDa homotetramer. Each subunit consists of five domains, the third being an alpha/beta barrel that contains most of the active site residues. A comparison is made between each of the domains and
Staci Rakowiecki et al.
Development (Cambridge, England), 140(8), 1730-1739 (2013-03-15)
The morphogenetic program that shapes the three semicircular canals (SSCs) must be executed with extreme precision to satisfy their complex vestibular function. The SSCs emerge from epithelial outgrowths of the dorsal otocyst, the central regions of which fuse and resorb
Yiquan Zhang et al.
Future microbiology, 8(2), 271-280 (2013-02-05)
To explore the transcriptional regulation of the psaEF and psaABC loci by the RovA and PhoP regulators in Yersinia pestis. Primer extension, LacZ fusion, gel mobility shift and DNase I footprinting assays were conducted in combination for this gene regulation
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