PSEN1 presenilin 1
Gene ID: 5663, updated on 4-Jan-2025Gene type: protein coding
Also known as: AD3; FAD; PS1; PS-1; S182; CMD1U; PSNL1; ACNINV3
- See all available tests in GTR for this gene
- Go to complete Gene record for PSEN1
- Go to Variation Viewer for PSEN1 variants
Summary
Alzheimer's disease (AD) patients with an inherited form of the disease carry mutations in the presenilin proteins (PSEN1; PSEN2) or in the amyloid precursor protein (APP). These disease-linked mutations result in increased production of the longer form of amyloid-beta (main component of amyloid deposits found in AD brains). Presenilins are postulated to regulate APP processing through their effects on gamma-secretase, an enzyme that cleaves APP. Also, it is thought that the presenilins are involved in the cleavage of the Notch receptor, such that they either directly regulate gamma-secretase activity or themselves are protease enzymes. Several alternatively spliced transcript variants encoding different isoforms have been identified for this gene, the full-length nature of only some have been determined. [provided by RefSeq, Aug 2008]
Associated conditions
Genomic context
- Location:
- 14q24.2
- Sequence:
- Chromosome: 14; NC_000014.9 (73136417..73223691)
- Total number of exons:
- 13
Variation
| Resource | Links for this gene |
|---|---|
| ClinVar | Variants reported to ClinVar |
| dbVar | Studies and variants |
| SNP | Variation Viewer for PSEN1 variants |
| Genome viewer | Explore NCBI-annotated and select non-NCBI annotated genome assemblies |
- ALSoD/PSEN1 genetic mutations
- Alzheimer Disease & Frontotemporal Dementia Mutation Database
- ClinVarRelated medical variations
- dbVarLink from Gene to dbVar
- MedGenRelated information in MedGen
- OMIMLink to related OMIM entry
- PSEN1 database
- PubMed (OMIM)Gene links to PubMed derived from omim_pubmed_cited links
- RefSeq RNAsLink to Nucleotide RefSeq RNAs
- RefSeqGeneLink to Nucleotide RefSeqGenes
- Variation ViewerRelated Variants
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