Catalog # SP0281

nSMase3 (C-terminal region) Antibody

Rabbit Polyclonal

Application / Dilution

Size 100 μl

Species Reactivity Hu, Rt, Ms

MW 98 kDa



Cellular stress leads to hydrolysis of sphingomyelin to generate lipid second messenger molecules including ceramide, sphingosine, and sphingosine-1-phosphate. A variety of sphingomyelinase activities have been described that differ in tissue and subcellular distribution, as well as pH and cation dependence. These enzymes generate ceramide for specific signaling pathways that lead to a wide range of cellular responses, such as apoptosis, cell cycle arrest, cell survival, and cell proliferation. Neutral sphingomyelinases (nSMases) are Mg2+-dependent neutral pH SMases, and the family includes nSMase1, nSMase2, and nSMase3. These nSMases differ in their tissue distribution and subcellular localization. nSMase3 (also known as SMPD4) is highly expressed in skeletal muscle and heart tissues, and is expressed in many cancer cell lines. The nSMase3 protein is localized to endoplasmic reticulum and Golgi, and may be upregulated in response to DNA damage and cell stress.


Corcoran, C.A. et al. (2008) Mol Can Res. 6(5):795.
Wiegmann, K.O. et al. (2006) J Biol Chem. 281(19):13784.

Western blot of nSMase3a and nSMase3b GFP transfectants (A) and nSMase3 siRNA knockdown in C2C12 myotubes (B). Both blots were probed with anti-nSMase3 (C-terminal region) rabbit polyclonal antibody (SP0281). (Image provided by Dr. Jennifer Moylan, Dept. Physiology, University of Kentucky).

Immunocytochemical labeling of nSMase3 in aldehyde-fixed and NP-40-permeabilized mouse C2C12 cells. The cells were labeled with rabbit polyclonal anti-nSMase3 (SP0281) antibody. The antibody was detected using appropriate secondary antibody conjugated to DyLight® 594.

nSMase3 synthetic peptide corresponds to amino acids in the C-terminal region of mouse nSMase3. This sequence is highly conserved in rat and human nSMase3, and has low homology to other nSMase family members.

*For more information, see UniProt Accession Q6ZPR5
Rabbit polyclonal, affinity-purified antibody is supplied in 100µl phosphate-buffered saline, 50% glycerol, 1 mg/ml BSA, and 0.05% sodium azide. Store at –20°C. Stable for 1 year.

The products are are safely shipped at ambient temperature for both domestic and international shipments. Each product is guaranteed to match the specifications as indicated on the corresponding technical data sheet. Please store at -20C upon arrival for long term storage.

The antibody detects an 85-90 kDa* band corresponding to nSMase3 on SDS-PAGE immunoblots of adult mouse heart and mouse C2C12 cells. The antibody works for western blot, ELISA, immunoprecipitation, and immunocytochemistry.

*All molecular weights (MW) are confirmed by comparison to Bio-Rad Rainbow Markers and to western blot mobilities of known proteins with similar MW.

This kit contains: