Aliases for PSENEN Gene
External Ids for PSENEN Gene
Previous GeneCards Identifiers for PSENEN Gene
Presenilins, which are components of the gamma-secretase protein complex, are required for intramembranous processing of some type I transmembrane proteins, such as the Notch proteins and the beta-amyloid precursor protein. Signaling by Notch receptors mediates a wide range of developmental cell fates. Processing of the beta-amyloid precursor protein generates neurotoxic amyloid beta peptides, the major component of senile plaques associated with Alzheimer's disease. This gene encodes a protein that is required for Notch pathway signaling, and for the activity and accumulation of gamma-secretase. Mutations resulting in haploinsufficiency for this gene cause familial acne inversa-2 (ACNINV2). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]
GeneCards Summary for PSENEN Gene
PSENEN (Presenilin Enhancer Gamma-Secretase Subunit) is a Protein Coding gene. Diseases associated with PSENEN include Acne Inversa, Familial, 2 and Dowling-Degos Disease. Among its related pathways are p75 NTR receptor-mediated signalling and Signaling by NOTCH1. An important paralog of this gene is ENSG00000188223.
UniProtKB/Swiss-Prot for PSENEN Gene
Essential subunit of the gamma-secretase complex, an endoprotease complex that catalyzes the intramembrane cleavage of integral membrane proteins such as Notch receptors and APP (beta-amyloid precursor protein) (PubMed:12522139, PubMed:12763021, PubMed:12740439, PubMed:12679784, PubMed:24941111). The gamma-secretase complex plays a role in Notch and Wnt signaling cascades and regulation of downstream processes via its role in processing key regulatory proteins, and by regulating cytosolic CTNNB1 levels (Probable). PSENEN modulates both endoproteolysis of presenilin and gamma-secretase activity (PubMed:12522139, PubMed:12763021, PubMed:12740439, PubMed:12679784, PubMed:24941111).
gamma-secretase is a multi-subunit internal protease that cleaves within the transmembrane domain of its substrates. It is an integral membrane protein and minimally consists of four proteins; presenilin, nicastrin, APH-1 and PEN-2. gamma-secretase is involved in the processing of Notch.