G4155
β-Galactosidase from Escherichia coli
aqueous glycerol suspension, ≥500 units/mg protein (biuret)
Sinônimo(s):
β-D-Galactoside galactohydrolase, Lactase
Faça loginpara ver os preços organizacionais e de contrato
About This Item
Número CAS:
Número MDL:
Código UNSPSC:
12352204
NACRES:
NA.54
Produtos recomendados
forma
aqueous glycerol suspension
Nível de qualidade
atividade específica
≥500 units/mg protein (biuret)
peso molecular
465 kDa
temperatura de armazenamento
−20°C
Procurando produtos similares? Visita Guia de comparação de produtos
Aplicação
β-Galactosidase is used in the enzymatic assays in the synthesis of imidazolo-pyrrolidinoses.
Ações bioquímicas/fisiológicas
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.
propriedades físicas
Tetramer molecular weight 465 kDa (subunits 116.3 kDa each)
Definição da unidade
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.
forma física
Suspension in 50% glycerol, 5 mM Tris buffer salts, 5 mM magnesium chloride, 0.5 mM DTT, 0.5 mM mercaptoethanol. pH 7.4
Outras notas
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).
inibidor
substrato
Nº do produto
Descrição
Preços
Código de classe de armazenamento
10 - Combustible liquids
Classe de risco de água (WGK)
WGK 2
Ponto de fulgor (°F)
Not applicable
Ponto de fulgor (°C)
Not applicable
Certificados de análise (COA)
Busque Certificados de análise (COA) digitando o Número do Lote do produto. Os números de lote e remessa podem ser encontrados no rótulo de um produto após a palavra “Lot” ou “Batch”.
Já possui este produto?
Encontre a documentação dos produtos que você adquiriu recentemente na biblioteca de documentos.
Os clientes também visualizaram
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
J W Callahan
Biochimica et biophysica acta, 1455(2-3), 85-103 (1999-11-26)
GM1 gangliosidosis and Morquio B disease are distinct disorders both clinically and biochemically yet they arise from the same beta-galactosidase enzyme deficiency. On the other hand, galactosialidosis and sialidosis share common clinical and biochemical features, yet they arise from two
E Paschke et al.
Human genetics, 109(2), 159-166 (2001-08-21)
An inherited deficiency in beta-galactosidase can result in GM1 gangliosidosis, with several phenotypes of generalized or chronic psychomotor deterioration, as well as in Morquio disease type B, a characteristic mucopolysaccharidosis free of neurological symptoms. We performed mutation analyses in 17
Nossa equipe de cientistas tem experiência em todas as áreas de pesquisa, incluindo Life Sciences, ciência de materiais, síntese química, cromatografia, química analítica e muitas outras.
Entre em contato com a assistência técnica