Converts sphingomyelin to ceramide. Also has phospholipase C activities toward 1,2-diacylglycerolphosphocholine and 1,2-diacylglycerolphosphoglycerol. Isoform 2 and isoform 3 have lost catalytic activity.
Involvement in disease: Defects in SMPD1 are the cause of Niemann-Pick disease type A (NPDA) ; also known as Niemann-Pick disease classical infantile form. It is an early-onset lysosomal storage disorder caused by failure to hydrolyze sphingomyelin to ceramide. It results in the accumulation of sphingomyelin and other metabolically related lipids in reticuloendothelial and other cell types throughout the body, leading to cell death. Niemann-Pick disease type A is a primarily neurodegenerative disorder characterized by onset within the first year of life, mental retardation, digestive disorders, failure to thrive, major hepatosplenomegaly, and severe neurologic symptoms. The severe neurological disorders and pulmonary infections lead to an early death, often around the age of four. Clinical features are variable. A phenotypic continuum exists between type A (basic neurovisceral) and type B (purely visceral) forms of Niemann-Pick disease, and the intermediate types encompass a cluster of variants combining clinical features of both types A and B.

Acid sphingomyelinase; ASM; ASM_HUMAN; aSMase; NPD; Smpd1; Sphingomyelin phosphodiesterase 1 acid lysosomal; Sphingomyelin phosphodiesterase.

Human,Mouse,Rat,Dog,Pig,Cow,Rabbit

WB,IHC,IF,ICC,FC

WB 1:500-2000
IHC 1:100-500
IF 1:100-1:400
ICC 1:100-1:400
FC 1:100

64kD

6609

P17405

https://www.uniprot.org/uniprotkb/P17405

Lysosome.

KLH conjugated synthetic peptide derived from human Acid sphingomyelinase

Rabbit

Polyclonal

IgG

affinity purified by Protein A

Liquid

0.01M TBS (pH7.4) with 1% BSA, 0.02% Proclin300 and 50% Glycerol.

Shipped at 4℃. Store at -20℃ for one year. Avoid repeated freeze/thaw cycles.