SMPD1 - sphingomyelin phosphodiesterase 1 Gene
Also Known as ASM; NPD; ASMASE
Species: Homo sapiens
About SMPD1
This gene has 10 transcripts (splice variants), 198 orthologues, 2 paralogues and is associated with 5 phenotypes. Ubiquitous expression in kidney (RPKM 23.5), thyroid (RPKM 14.4) and 25 other tissues.
Summary
The protein encoded by this gene is a lysosomal acid sphingomyelinase that converts sphingomyelin to ceramide. The encoded protein also has Phospholipase C activity. Defects in this gene are a cause of Niemann-Pick disease type A (NPA) and Niemann-Pick disease type B (NPB). Multiple transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2010]
SMPD1 Products (5)
| mRNA | Protein | Name |
|---|---|---|
| NM_000543.5 | NP_000534.3 | sphingomyelin phosphodiesterase isoform 1 precursor |
| NM_001007593.3 | NP_001007594.2 | sphingomyelin phosphodiesterase isoform 2 precursor |
| NM_001318087.2 | NP_001305016.1 | sphingomyelin phosphodiesterase isoform 3 precursor |
| NM_001318088.2 | NP_001305017.1 | sphingomyelin phosphodiesterase isoform 4 |
| NM_001365135.2 | NP_001352064.1 | sphingomyelin phosphodiesterase isoform 5 |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables acid sphingomyelin phosphodiesterase activity |
IDA
IDA: Inferred from direct assay
|
8702487 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
16787399 | GOA |
| enables sphingomyelin phosphodiesterase activity |
IDA
IDA: Inferred from direct assay
|
9660788 | GOA |
| enables zinc ion binding |
IDA
IDA: Inferred from direct assay
|
8702487 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| located in endolysosome |
IDA
IDA: Inferred from direct assay
|
17303575 | GOA |
| located in endosome |
IDA
IDA: Inferred from direct assay
|
20956541 | GOA |
| is active in extracellular space |
IDA
IDA: Inferred from direct assay
|
33163980 | GOA |
| located in extracellular space |
IDA
IDA: Inferred from direct assay
|
8702487 | GOA |
| is active in lysosome |
IDA
IDA: Inferred from direct assay
|
33163980 | GOA |
| located in lysosome |
IDA
IDA: Inferred from direct assay
|
9660788 | GOA |
| located in plasma membrane |
IDA
IDA: Inferred from direct assay
|
20956541 | GOA |
SMPD1 Protein Structure
Metallophos: Calcineurin-like phosphoesterase (202 - 463)
- 0
- 100
- 200
- 300
- 400
- 500
- 600
- 631 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
sphingomyelin phosphodiesterase |
|
SMPD1 Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
SMPD1 | P17405 | CASP7 | Homo sapiens | P55210 | 21157428 | |
|
Intra
|
SMPD1 | P17405 | CASP7 | Homo sapiens | P55210 | 21157428 | |
|
Intra
|
SMPD1 | P17405 | CASP7 | Homo sapiens | P55210 | 21157428 |
Recombinant SMPD1 Proteins
| Cat. No. | Product Name | Accession | Purity |
|---|---|---|---|
| HY-P76710 | SMPD1 Protein, Human (sf9, His) | P17405 (M1-P628) | ≥ 95%, as determined by reducing SDS-PAGE. |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Niemann-Pick Disease, Type B |
|
|
| Niemann-Pick Disease, Type A |
|
|
| Niemann-Pick Disease |
|
|
| Acid Sphingomyelinase Deficiency |
|
|
| Niemann-Pick Disease, Type C1 |
|
|
| Ceroid Lipofuscinosis, Neuronal, 6a |
|
|
| Mucolipidosis Ii Alpha/Beta |
|
|
| Lysosomal Storage Disease |
|
|
| Beckwith-Wiedemann Syndrome |
|
|
| Farber Lipogranulomatosis |
|
|
| Gaucher'S Disease |
|
|
| Sphingolipidosis |
|
|
| Hemihyperplasia, Isolated |
|
|
| C Syndrome |
|
|
| Lysosomal And Lipase Deficiency |
|
|
| Krabbe Disease |
|
|
| Pulmonary Edema |
|
|
| Spinal Muscular Atrophy With Progressive Myoclonic Epilepsy |
|
|
| Lysosomal Acid Lipase Deficiency |
|
|
| Sea-Blue Histiocyte Disease |
|
|
| Gm2 Gangliosidosis |
|
|
| Cerebral Lipidosis |
|
|
| Sandhoff Disease |
|
|
| Niemann-Pick Disease, Type C2 |
|
|
| Gangliosidosis |
|
|
| Tay-Sachs Disease |
|
|
| Acquired Hyperkeratosis |
|
|
| Gm1 Gangliosidosis |
|
|
| Lipid Storage Disease |
|
|
| Cystic Fibrosis |
|
|
| Metachromatic Leukodystrophy |
|
|
| Mucolipidosis |
|
|
| Mucopolysaccharidosis, Type Iva |
|
|
| Gaucher Disease, Type I |
|
|
| Mucopolysaccharidosis Iii |
|
|
| Mucopolysaccharidosis, Type Iiia |
|
|
| Neuronal Ceroid Lipofuscinosis |
|
|
| Nephrotic Syndrome, Type 14 |
|
|
| Hereditary Sensory And Autonomic Neuropathy Type 1 |
|
|
| Pick Disease Of Brain |
|
|
| Parkinson Disease, Late-Onset |
|
|
| Alzheimer Disease, Familial, 1 |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Mus musculus | SMPD1 | MGD | MGI:98325 |
| Rattus norvegicus | SMPD1 | RGD | RGD:1549719 |
| Felis catus | SMPD1 | VGNC | VGNC:65501 |
| Canis familiaris | SMPD1 | VGNC | VGNC:46569 |
| Macaca mulatta | SMPD1 | VGNC | VGNC:77659 |
| Bos taurus | SMPD1 | VGNC | VGNC:35029 |
| Others | SMPD1 | NCBI |