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Key Documents

S7651

Sigma-Aldrich

Sphingomyelinase from Bacillus cereus

lyophilized powder, ≥100 units/mg protein

Sinonimo/i:

Sphingomyelin choline phosphohydrolase, Sphingomyelin phosphodiesterase

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About This Item

Numero CAS:
Classificazione EC (Enzyme Commission):
Numero CE:
Numero MDL:
Codice UNSPSC:
12352204
NACRES:
NA.54

Forma fisica

lyophilized powder

Livello qualitativo

Attività specifica

≥100 units/mg protein

PM

36873 Da

Composizione

Protein, ~10% Lowry

Temperatura di conservazione

2-8°C

Informazioni sul gene

Bacillus cereus ATCC 14579 ... BC0671(1203022)

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Descrizione generale

Sphingomyelinase from Bacillus cereus (Bc-Smase) is a Mg2+-containing metalloenzyme. Bacillus cereus sphingomyelinase induces hemolysis of sheep erythrocytes.
Sphingomyelinase modulates adenosine triphosphate (ATP)-independent endocytosis of fibroblast and large vesicles of macrophages. Sphingomyelinase causes hemolysis of human erythrocytes. It is also a potent virulence factor leading to invasive diseases.

Applicazioni

Sphingomyelinase from Bacillus cereus has been used:
  • in the measurement of membrane capacitance in brain slices
  • for testing and confirming its silkworm-killing activity
  • in enzyme activity assay and for elucidating its effect on hydrolysis of sphingomyelin in complex lipid mixtures

Sphingomyelinase has been used in a study to investigate skeletal manifestations in pediatric and adult patients with Niemann Pick disease.

Azioni biochim/fisiol

Initiates the formation of sphingomyelin-based second messengers. Activates MAPK (mitogen-activated protein kinase) and SAPKs (stress-activated protein kinases); generates ceramide from sphingomyelin.

Definizione di unità

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

Stato fisico

Lyophilized powder containing potassium phosphate buffer salts and stabilizer.

Pittogrammi

Exclamation mark

Avvertenze

Warning

Indicazioni di pericolo

Classi di pericolo

Skin Sens. 1

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


Certificati d'analisi (COA)

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Purification of a soil bacteria exotoxin using silkworm toxicity to measure specific activity
Usui K, et al.
Microbial Pathogenesis, 46(2), 59-62 (2009)
Lipid bilayers containing sphingomyelins and ceramides of varying N-acyl lengths: a glimpse into sphingolipid complexity
Jimenez-Rojo N, et al.
Biochimica et Biophysica Acta - Biomembranes, 1838(1), 456-464 (2014)
Promotion of endocytosis efficiency through an ATP-independent mechanism at rat calyx of Held terminals
Yue HY, et al.
The Journal of Physiology, 595(15), 5265-5284 (2017)
Melissa Wasserstein et al.
Journal of inherited metabolic disease, 36(1), 123-127 (2012-06-22)
Niemann-Pick disease (NPD) due to acid sphingomyelinase deficiency is a lipid storage disease resulting from the accumulation of sphingomyelin, predominantly within cells of the monocyte-macrophage system. In contrast to other lysosomal storage disorders, skeletal involvement in NPD has not been
Masataka Oda et al.
Biochimica et biophysica acta, 1798(6), 1073-1080 (2010-03-11)
Bacillus cereus sphingomyelinase (Bc-SMase) induces hemolysis of sheep erythrocytes which contain large amounts of sphingomyelin. We investigated the mechanism of this hemolysis in comparison to that induced by Clostridium perfringens alpha-toxin. Pertussis toxin, a Gi-specific inhibitor, N-oleoylethernolamine, a ceramidase inhibitor

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