Gene Gene information from NCBI Gene database.
Entrez ID 6609
Gene name Sphingomyelin phosphodiesterase 1
Gene symbol SMPD1
Synonyms (NCBI Gene)
ASMASMASENPD
Chromosome 11
Chromosome location 11p15.4
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 di
SNPs SNP information provided by dbSNP.
146
SNP ID Visualize variation Clinical significance Consequence
rs1803161 G>A,C Pathogenic, uncertain-significance Intron variant, missense variant, 5 prime UTR variant, coding sequence variant, non coding transcript variant
rs120074117 G>A,C,T Likely-pathogenic, pathogenic Coding sequence variant, non coding transcript variant, missense variant
rs120074118 GCC>- Pathogenic Coding sequence variant, non coding transcript variant, inframe deletion, 3 prime UTR variant
rs120074119 G>A Likely-pathogenic Coding sequence variant, non coding transcript variant, missense variant, 3 prime UTR variant
rs120074120 T>A Pathogenic Coding sequence variant, intron variant, 5 prime UTR variant, stop gained, non coding transcript variant
miRNA miRNA information provided by mirtarbase database.
180
miRTarBase ID miRNA Experiments Reference
MIRT648380 hsa-miR-3184-3p HITS-CLIP 23824327
MIRT648379 hsa-miR-3691-3p HITS-CLIP 23824327
MIRT648378 hsa-miR-1289 HITS-CLIP 23824327
MIRT648377 hsa-miR-4294 HITS-CLIP 23824327
MIRT648376 hsa-miR-516b-5p HITS-CLIP 23824327
Transcription factors Transcription factors information provided by TRRUST V2 database.
1
Transcription factor Regulation Reference
SP1 Activation 10224156
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
69
GO ID Ontology Definition Evidence Reference
GO:0001778 Process Plasma membrane repair IDA 20530211
GO:0001778 Process Plasma membrane repair IEA
GO:0004767 Function Sphingomyelin phosphodiesterase activity IDA 9660788, 21098024, 22573858, 33163980
GO:0004767 Function Sphingomyelin phosphodiesterase activity IEA
GO:0004767 Function Sphingomyelin phosphodiesterase activity TAS 1718266
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
607608 11120 ENSG00000166311
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
P17405
Protein name Sphingomyelin phosphodiesterase (EC 3.1.4.12) (EC 3.1.4.3) (Acid sphingomyelinase) (aSMase) [Cleaved into: Sphingomyelin phosphodiesterase, processed form]
Protein function Converts sphingomyelin to ceramide (PubMed:12563314, PubMed:1840600, PubMed:18815062, PubMed:25339683, PubMed:25920558, PubMed:27659707, PubMed:33163980). Exists as two enzymatic forms that arise from alternative trafficking of a single protein
PDB 5I81 , 5I85 , 5I8R , 5JG8
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF00149 Metallophos 201 463 Calcineurin-like phosphoesterase Domain
Sequence
MPRYGASLRQSCPRSGREQGQDGTAGAPGLLWMGLVLALALALALALALSDSRVLWAPAE
AHPLSPQGHPARLHRIVPRLRDVFGWGNLTCPICKGLFTAINLGLKKEPNVARVGSVAIK
LCNLLKIAPPAVCQSIVHLFEDDMVEVWRRSVLSPSEACGLLLGSTCGHWDIFSSWNISL
PTVPKPPPKPPSPPAPGAPVSRILFLTDLHWDHDYLEGTDPDCADPLCCRRGSGLPPASR
PGAGYWGEYSKCDLPLRTLESLLSGLGPAGPFDMVYWTGDIPAHDVWHQTRQDQLRALTT
VTALVRKFLGPVPVYPAVGNHESTPVNSFPPPFIEGNHSSRWLYEAMAKAWEPWLPAEAL
RTLRIGGFYALSPYPGLRLISLNMNFCSRENFWLLINSTDPAGQLQWLVGELQAAEDRGD
KVHIIGHIPPGHCLKSWSWNYYRIVARYENTLAAQFFGHTHVD
EFEVFYDEETLSRPLAV
AFLAPSATTYIGLNPGYRVYQIDGNYSGSSHVVLDHETYILNLTQANIPGAIPHWQLLYR
ARETYGLPNTLPTAWHNLVYRMRGDMQLFQTFWFLYHKGHPPSEPCGTPCRLATLCAQLS
ARADSPALCRHLMPDGSLPEAQSLWPRPLFC
Sequence length 631
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  KEGG  Reactome
  Sphingolipid metabolism
Metabolic pathways
Sphingolipid signaling pathway
Lysosome
Necroptosis
  Glycosphingolipid metabolism
Associated diseases Disease associations from ClinVar categorized as Causal (Pathogenic/Likely Pathogenic) or Unknown.
2195
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Abnormality of metabolism/homeostasis Likely pathogenic; Pathogenic rs120074117 RCV001814072
Acid sphingomyelinase deficiency Pathogenic; Likely pathogenic rs200763423, rs2134010914, rs387906289, rs2493820064, rs756366019, rs759389193 RCV005635328
RCV002275717
RCV005357060
RCV005636854
RCV005359522
RCV005633681
Ceroid lipofuscinosis, neuronal, 6A Pathogenic rs587779408 RCV000087097
Intellectual disability Likely pathogenic; Pathogenic rs752000778 RCV001293359
Unknown Diseases with uncertain, conflicting, or no pathogenic evidence in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession
Cervical cancer Benign; Likely benign rs141641266, rs1803160 RCV005895117
RCV005892995
Clear cell carcinoma of kidney Benign; Likely benign rs141641266 RCV005895118
Colon adenocarcinoma Benign; Likely benign rs141641266 RCV005895113
Familial cancer of breast Benign; Likely benign rs141641266 RCV005895112
Associations from Text MiningDisease associations identified through Pubtator
Disease Name Relationship Type References
Adenomatous Polyposis Coli Associate 10496347
Alzheimer Disease Associate 25938590, 33925997
Amenorrhea Associate 23356216
Atherosclerosis Associate 19951413
Attention Deficit Disorder with Hyperactivity Associate 32661301
Autism Spectrum Disorder Associate 31595719
Beckwith Wiedemann Syndrome Associate 11173664, 11310411
beta Thalassemia Associate 36725747
Blood Coagulation Disorders Associate 34075401
Budd Chiari Syndrome Associate 36114502