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Active Acid Sphingomyelinase (ASM)

SMPD1; NPD; SMase; aSMase; Sphingomyelin Phosphodiesterase 1,Acid Lysosomal; Simply Sphingomyelinase

ACTIVITY TEST

Sphingomyelin phosphodiesterase 1 (SMPD1), also known as acid sphingomyelinase (ASM), belongs to the sphingomyelin phosphodiesterase family. The protein Converts sphingomyelin to ceramide. ASM also has phospholipase C activities toward 1,2-diacylglycerolphosphocholine and 1,2-diacylglycerolphosphoglycerol.

Thus, the recombinant mouse ASM activity was measured by its ability to hydrolyze 2-N-Hexadecanoylamino-4-nitrophenylphosphorylcholine (HDA-PC) to p-Nitrophenol. The reaction was performed in 50mM MES, 0.5 µM ZnCl2, pH 7.5 ( Assay Buffer), initiated by addition 50μL of various concentrations of ASM (diluted with Assay Buffer) to 50 µL of 1mM Substrate HDA-PC ( 50mM stock solution in methanol, diluted with Assay Buffer). Incubated at room temperature for 20 minutes in the dark, then read at a wavelength of 405 nm.

USAGE

Reconstitute in 10mM PBS (pH7.4) to a concentration of 0.1-1.0 mg/mL. Do not vortex.

STORAGE

Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.

STABILITY

The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.

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Magazine Citations
Blood.? Acid sphingomyelinase is activated in sickle cell erythrocytes and contributes to inflammatory microparticle generation in SCD Pubmed:25075126
Journal of Clinical Lipidology Increase in acid sphingomyelinase level in human retinal endothelial cells and CD34+ circulating angiogenic cells isolated from diabetic individuals is associated with dysfunctional retinal vasculature and vascular repair process in diabetes 10.1016/j.jacl.2017.03.007
Diabetes & metabolism Fenofibrate decreases plasma ceramide in type 2 diabetes patients: A novel marker of CVD? pubmed:28499696
INFLAMMATION Acid Sphingomyelinase and Acid ¦Â-Glucosidase 1 Exert Opposite Effects on Interleukin-1¦Â-Induced Interleukin 6 Production in Rheumatoid Arthritis Fibroblast-Like Synoviocytes 33665756
Indian J Ophthalmol Evaluation of sphingolipid metabolism on diabetic retinopathy 34708809
Catalog No. Related products for research use of Mus musculus (Mouse) Organism species Applications (RESEARCH USE ONLY!)
EPB360Mu61 Eukaryotic Acid Sphingomyelinase (ASM) Positive Control; Immunogen; SDS-PAGE; WB.
APB360Mu61 Active Acid Sphingomyelinase (ASM) Cell culture; Activity Assays.