G4155
β-Galactosidasa from Escherichia coli
aqueous glycerol suspension, ≥500 units/mg protein (biuret)
Sinónimos:
β-D-galactósido galactohidrolasa, Lactasa
Iniciar sesiónpara Ver la Fijación de precios por contrato y de la organización
About This Item
Número de CAS:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.54
Productos recomendados
form
aqueous glycerol suspension
Quality Level
specific activity
≥500 units/mg protein (biuret)
mol wt
465 kDa
storage temp.
−20°C
¿Está buscando productos similares? Visita Guía de comparación de productos
Application
β-Galactosidase is used in the enzymatic assays in the synthesis of imidazolo-pyrrolidinoses.
Biochem/physiol Actions
βLa β-galactosidasa hidroliza la lactosa en sus componentes monosacáridos, glucosa y galactosa. También cataliza la transglucosilación de la glucosa en alolactosa, el inductor de la β-galactosidasa, en un bucle de retroalimentación.
Physical properties
Peso molecular del tetrámero 465 kDa (subunidades de 116,3 kDa cada una)
Unit Definition
One unit will hydrolyze 1.0 μmole of o-nitrophenyl β-D-galactoside to o-nitrophenol and D-galactose per min at pH 7.3 at 37 °C.
Physical form
Suspension in 50% glycerol, 5 mM Tris buffer salts, 5 mM magnesium chloride, 0.5 mM DTT, 0.5 mM mercaptoethanol. pH 7.4
Other Notes
Loss of enzymatic activity can occur if this enzyme is frozen. This enzyme is provided in a 50% glycerol solution and will not freeze if stored at -20° Celsius. It is not recommended that this enzyme preparation be stored in an ultracold freezer (-60 to -100° Celsius).
inhibitor
Referencia del producto
Descripción
Precios
substrate
Referencia del producto
Descripción
Precios
Storage Class
10 - Combustible liquids
wgk_germany
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
Certificados de análisis (COA)
Busque Certificados de análisis (COA) introduciendo el número de lote del producto. Los números de lote se encuentran en la etiqueta del producto después de las palabras «Lot» o «Batch»
¿Ya tiene este producto?
Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.
Los clientes también vieron
Théophile Tschamber et al.
Bioorganic & medicinal chemistry, 11(17), 3559-3568 (2003-08-07)
The syntheses of four glyco-imidazoles, which are pentose-derivatives belonging to the D-series, as well as the syntheses of their L-enantiomers, are reported. Starting from the known linear xylo, lyxo, arabino, and ribo imidazolo-pentoses in both the L- and the D-series
Olga Ermakova et al.
Brain sciences, 11(6) (2021-07-03)
Acquisition of detailed anatomical and molecular knowledge from intact biological samples while preserving their native three-dimensional structure is still a challenging issue for imaging studies aiming to unravel a system's functions. Three-dimensional micro-CT X-ray imaging with a high spatial resolution
Christophe Laumonnerie et al.
Development (Cambridge, England), 141(3), 594-603 (2014-01-23)
The establishment of anatomically stereotyped axonal projections is fundamental to neuronal function. While most neurons project their axons within the central nervous system (CNS), only axons of centrally born motoneurons and peripherally born sensory neurons link the CNS and peripheral
S Zhang et al.
The Biochemical journal, 348 Pt 3, 621-632 (2000-06-07)
We have identified and characterized three missense mutations in a patient with type 1 G(M1) gangliosidosis, namely a substitution of G for A at nucleotide position 1044 (G1044-->A; in exon 10) on one allele, which converts Asp(332) into asparagine, and
A Hinek et al.
American journal of human genetics, 67(1), 23-36 (2000-06-08)
We have previously shown that intracellular trafficking and extracellular assembly of tropoelastin into elastic fibers is facilitated by the 67-kD elastin-binding protein identical to an enzymatically inactive, alternatively spliced variant of beta-galactosidase (S-Gal). In the present study, we investigated elastic-fiber
Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.
Póngase en contacto con el Servicio técnico