| ID | Sequence | Length | GC content |
|---|---|---|---|
| GCGUAAACUCCGCUGGAGCGCGGCGGCAGAGCAGGCAUUUCCAGCAGUG… | 2249 nt | 0.5500 | |
| GCGUAAACUCCGCUGGAGCGCGGCGGCAGAGCAGGCAUUUCCAGCAGUG… | 2246 nt | 0.5503 |
Alzheimer's disease (AD) patients with an inherited form of the disease carry mutations in the presenilin proteins (PSEN1 or PSEN2) or 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 act are protease enzymes. Two alternatively spliced transcript variants encoding different isoforms of PSEN2 have been identified. [provided by RefSeq, Jul 2008]
A meta-analysis in humans identified PSEN2 as a key hub protein within a neurodegeneration-associated interaction network linked to post-mild traumatic brain injury signaling in peripheral biofluids [Matyasova et al. DOI:10.4149/gpb_2021038].