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Merck

S8633

Sigma-Aldrich

Sphingomyelinase from Staphylococcus aureus

buffered aqueous glycerol solution, 100-300 units/mg protein (Lowry)

Sinónimos:

Sphingomyelin choline phosphohydrolase, Sphingomyelin phosphodiesterase

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About This Item

Número de CAS:
Comisión internacional de enzimas:
Número MDL:
Código UNSPSC:
12352204
NACRES:
NA.32

formulario

buffered aqueous glycerol solution

Nivel de calidad

actividad específica

100-300 units/mg protein (Lowry)

temp. de almacenamiento

2-8°C

Aplicación

Sphingomyelinase from Staphylococcus aureus has been used to:
  • induce neurotoxicity in rat cortical cultures to study the protective effects of minocycline
  • determine the concentration of sphingomyelin from serum samples
  • enhance sphingomyelinase activity to study PARK9-mediated exosome biogenesis

Acciones bioquímicas o fisiológicas

Bacterial sphingomyelinase is active at neutral pH. When used in cell culture in vitro, it hydrolyzes the sphingomyelin on the outer leaflet of the plasma membrane and produces ceramide that is lipid-soluble. Sphingomyelinase is the key enzyme in the sphingomyelinase/ceramide pathway, which is implicated in the pathogenesis of several neurodegenerative disorders.
Initiates the formation of sphingomyelin-based second messengers. Activates MAPK (mitogen-activated protein kinase) and SAPKs (stress-activated protein kinases); generates ceramide from sphingomyelin.

Definición de unidad

One unit will hydrolyze 1.0 μmol of TNPAL-sphingomyelin per min at pH 7.4 at 37 °C.

Forma física

Solution in 50% glycerol containing 0.25 M phosphate buffer, pH 7.5

Código de clase de almacenamiento

10 - Combustible liquids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


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The Journal of neuroscience : the official journal of the Society for Neuroscience, 34(46), 15281-15287 (2014-11-14)
Kufor-Rakeb syndrome (KRS) is caused by loss-of-function mutations in ATP13A2 (PARK9) and characterized by juvenile-onset parkinsonism, pyramidal signs, and cognitive decline. Previous studies suggested that PARK9 deficiency causes lysosomal dysfunction and α-synuclein (α-syn) accumulation, whereas PARK9 overexpression suppresses toxicity of
Measurement of sphingomyelin and ceramide cellular levels after sphingomyelinase-mediated sphingomyelin hydrolysis.
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We have previously reported that dietary sericin improves epidermal dryness with the increased total Ceramide (Cer) in NC/Nga mice, an animal model of atopic dermatitis (AD). In this study, we hypothesized that the increased level of total Cer induced by

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