PSEN1

Cancer-related genes, Disease related genes, Enzymes, Human disease related genes, Potential drug targets, Transporters

Intracellular, Membrane (different isoforms)

Cell type enriched (Oligodendrocytes)

Low immune cell specificity

Low cell line specificity

Homodimer. The functional gamma-secretase complex is composed of at least four polypeptides: a presenilin homodimer (PSEN1 or PSEN2), nicastrin (NCSTN), APH1 (APH1A/APH1B) and PEN2 (PubMed:15274632, 12679784, 12740439, 25043039, 26280335, 25394380, 30598546, 30630874). Such minimal complex is sufficient for secretase activity (PubMed:15274632, 12679784, 12740439, 25043039, 26280335, 30598546, 30630874). Other components which are associated with the complex include SLC25A64, SLC5A7, PHB and PSEN1 isoform 3. As part of the gamma-secretase complex, interacts with CRB2 (via transmembrane domain) (PubMed:20299451). Predominantly heterodimer of a N-terminal (NTF) and a C-terminal (CTF) endoproteolytical fragment (PubMed:15274632). Associates with proteolytic processed C-terminal fragments C83 and C99 of the amyloid precursor protein (APP) (via transmembrane domain) (PubMed:30630874). Associates with NOTCH1 (via transmembrane domain) (PubMed:10593990, 30598546). Associates with cadherin/catenin adhesion complexes through direct binding to CDH1 or CDH2 (PubMed:11953314, 14515347, 16126725). Interaction with CDH1 stabilizes the complex and stimulates cell-cell aggregation (PubMed:11953314). Interaction with CDH2 is essential for trafficking of CDH2 from the endoplasmic reticulum to the plasma membrane (PubMed:14515347). Interacts with CTNND2, CTNNB1, CTNND1, JUP, HERPUD1, FLNA, FLNB, MTCH1, PKP4 and PARL (PubMed:9738936, 9437013, 10551805, 10037471, 11953314, 11799129, 16126725). Interacts through its N-terminus with GFAP (isoform 2) (PubMed:12058025). Interacts with DOCK3 (By similarity). Interacts with isoform 1 and isoform 3 of UBQLN1 (PubMed:21143716).

Hydrolase, Protease