sphingomyelin phosphodiesterase 3

Summary
Gene Symbol
  • SMPD3
Aliases
  • NSMASE2
  • neutral sphingomyelinase II
Organism
Homo sapiens (human)
NCBI Gene
55512
HGNC
14240
KEGG Gene ID
hsa:55512
PubChem
55512
Alliance of Genome Resources
JoGo
SMPD3
TogoVar
SMPD3
Annotation
Keyword
  • 3D-structure
  • Alternative splicing
  • Cell cycle
  • Cell membrane
  • Developmental protein
  • Golgi apparatus
  • Hydrolase
  • Magnesium
  • Metal-binding
  • Palmitate
  • Phosphoprotein
  • Proteomics identification
  • Reference proteome
  • Sphingolipid metabolism
  • Transmembrane helix
Proteins
Displaying all 2 entries
UniProt Protein Name
A8K0T6
  • Neutral sphingomyelinase 2
  • Neutral sphingomyelinase II
Q9NY59
  • Neutral sphingomyelinase 2
  • Neutral sphingomyelinase II
Gene Ontology (GO)
GO Hierarchy
OrthoDB (Group)
Group level
Eukaryota
Group Name
sphingomyelin phosphodiesterase
Functional Category
  • E: Amino acid transport and metabolism
  • M: Cell wall/membrane/envelope biogenesis
  • Q: Secondary metabolites biosynthesis, transport and catabolism
Human Protein Atlas
ENSG00000103056

soft tissue soft tissue blood blood blood blood blood blood blood blood blood blood blood blood blood blood lymph node lymph node lymph node lymph node lymph node lymph node lymph node lymph node lymph node lymph node lymph node kidney kidney adrenal gland adrenal gland breast breast duodenum stomach small intestine colon rectum appendix esophagus eye eye salivary gland nasopharynx nasopharynx tongue tonsil tonsil tonsil hair skin adipose tissue adipose tissue adipose tissue spinal cord oral mucosa lung lung heart bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus liver pancreas thyroid gland parathyroid gland parathyroid gland parathyroid gland parathyroid gland parathyroid gland spleen gallbladder ductus deferens ductus deferens seminal vesicle seminal vesicle seminal vesicle seminal vesicle testis testis epididymis epididymis brain smooth muscle urinary bladder prostate bone marrow skeletal muscle skeletal muscle skeletal muscle skeletal muscle skeletal muscle thymus thymus cartilage sole of foot sole of foot soft tissue blood blood blood blood blood blood blood blood blood blood blood blood lymph node lymph node lymph node lymph node lymph node lymph node lymph node lymph node lymph node lymph node lymph node lactating breast lactating breast kidney kidney adrenal gland adrenal gland duodenum stomach small intestine colon rectum appendix esophagus eye eye salivary gland salivary gland salivary gland salivary gland salivary gland salivary gland nasopharynx tongue tonsil tonsil hair skin adipose tissue adipose tissue adipose tissue adipose tissue adipose tissue adipose tissue adipose tissue spinal cord oral mucosa lung lung heart bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus bronchus liver pancreas thyroid gland parathyroid gland parathyroid gland parathyroid gland parathyroid gland parathyroid gland spleen gallbladder brain skeletal muscle skeletal muscle skeletal muscle skeletal muscle skeletal muscle thymus thymus smooth muscle urinary bladder vagina ovary ovary fallopian tube fallopian tube endometrium placenta cervix cervix bone marrow cartilage sole of foot sole of foot olfactory region cerebral cortex cerebellum medulla pons midbrain pituitary gland hypothalamus amygdala thalamus choroid plexus choroid plexus corpus callosum basal ganglia substantia nigra dorsal raphe dorsal raphe dorsal raphe dorsal raphe dorsal raphe dorsal raphe caudate hippocampus retina retina

Tissue with high expression from Human Protein Atlas. Tissues that are highly expressed are highlighted.

KEGG BRITE Database
Orthology
K12352
Name
sphingomyelin phosphodiesterase 3 [EC:3.1.4.12]
References
LIPID MAPS Gene / Proteome Database
LMPD ID
LMP001258
Gene Name
sphingomyelin phosphodiesterase 3, neutral membrane (neutral sphingomyelinase II)

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Last updated: December 8, 2025