Summary

Name PSEN1
Full Name Presenilin-1
Synonyms PS-1, Protein S182 | AD3, PS1, PSNL1
Primary ID P49768
Links - -
Type protein
Relations 39
Pathways Alzheimer
Inhibitors 4-[2-[(1R)-1-(N-(4-chlorophenyl)sulfonyl-2,5-difluoroanilino)ethyl]-5-fluorophenyl]butanoic acid; DAPT
Function Catalytic subunit of the gamma-secretase complex, an endoprotease complex that catalyzes the intramembrane cleavage of integral membrane proteins such as Notch receptors and APP (amyloid-beta precursor protein) (PubMed:15274632, PubMed:10545183, PubMed:10593990, PubMed:10206644, PubMed:10899933, PubMed:10811883, PubMed:12679784, PubMed:12740439, PubMed:25043039, PubMed:26280335, PubMed:30598546, PubMed:30630874, PubMed:28269784, PubMed:20460383). Requires the presence of the other members of the gamma-secretase complex for protease activity (PubMed:15274632, PubMed:25043039, PubMed:26280335, PubMed:30598546, PubMed:30630874). 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 (PubMed:9738936, PubMed:10593990, PubMed:10899933, PubMed:10811883). Stimulates cell-cell adhesion via its interaction with CDH1; this stabilizes the complexes between CDH1 (E-cadherin) and its interaction partners CTNNB1 (beta-catenin), CTNND1 and JUP (gamma-catenin) (PubMed:11953314). Under conditions of apoptosis or calcium influx, cleaves CDH1 (PubMed:11953314). This promotes the disassembly of the complexes between CDH1 and CTNND1, JUP and CTNNB1, increases the pool of cytoplasmic CTNNB1, and thereby negatively regulates Wnt signaling (PubMed:9738936, PubMed:11953314). Required for normal embryonic brain and skeleton development, and for normal angiogenesis (By similarity). Mediates the proteolytic cleavage of EphB2/CTF1 into EphB2/CTF2 (PubMed:17428795, PubMed:28269784). The holoprotein functions as a calcium-leak channel that allows the passive movement of calcium from endoplasmic reticulum to cytosol and is therefore involved in calcium homeostasis (PubMed:25394380, PubMed:16959576). Involved in the regulation of neurite outgrowth (PubMed:15004326, PubMed:20460383). Is a regulator of presynaptic facilitation, spike transmission and synaptic vesicles replenishment in a process that depends on gamma-secretase activity. It acts through the control of SYT7 presynaptic expression (By similarity).

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Modifications Tables

Relations

Regulator Mechanism target score
+ up-regulates activity img/direct-activation.png cleavage PSEN1 0.297
Publications: 2 Organism: In Vitro
+ up-regulates activity img/direct-activation.png cleavage PSEN1 0.379
Publications: 2 Organism: In Vitro
+ up-regulates activity img/direct-activation.png cleavage PSEN1 0.376
Publications: 2 Organism: In Vitro
Pathways:Alzheimer
+ up-regulates activity img/direct-activation.png cleavage PSEN1 0.466
Publications: 1 Organism: In Vitro
Pathways:Alzheimer
+ up-regulates activity img/direct-activation.png cleavage PSEN1 0.393
Publications: 1 Organism: In Vitro
+ up-regulates activity img/direct-activation.png cleavage PSEN1 0.349
Publications: 1 Organism: In Vitro
+ img/unknown.png phosphorylation PSEN1 0.472
Publications: 1 Organism: In Vitro
+ up-regulates img/direct-activation.png phosphorylation PSEN1 0.384
Publications: 2 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation PSEN1 0.342
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation PSEN1 0.267
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation PSEN1 0.2
Publications: 1 Organism: Homo Sapiens
+ up-regulates activity img/direct-activation.png phosphorylation PSEN1 0.2
Publications: 1 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation PSEN1 0.404
Publications: 2 Organism: Homo Sapiens
+ down-regulates activity img/direct_inhibition.png phosphorylation PSEN1 0.605
Publications: 2 Organism: Homo Sapiens
Pathways:Alzheimer
+ up-regulates img/direct-activation.png phosphorylation PSEN1 0.526
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png binding PSEN1 0.964
Publications: 3 Organism: Homo Sapiens
Tissue: Ovary
Pathways:Alzheimer
+ down-regulates img/direct_inhibition.png chemical inhibition PSEN1 0.8
Publications: 1 Organism: Homo Sapiens
Tissue: Brain
+ up-regulates img/direct-activation.png binding PSEN1 0.639
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png cleavage NOTCH 0.79
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png binding PSEN1 0.946
Publications: 2 Organism: Homo Sapiens
Tissue: Brain
+ up-regulates img/direct-activation.png cleavage gamma-secretase 0.956
Publications: 2 Organism: Homo Sapiens
Pathways:Alzheimer
+ up-regulates img/direct-activation.png cleavage PSEN1 0.958
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity by destabilization img/direct_inhibition.png polyubiquitination PSEN1 0.271
Publications: 1 Organism: Homo Sapiens
+ down-regulates quantity by destabilization img/direct_inhibition.png binding PSEN1 0.507
Publications: 1 Organism: Homo Sapiens
+ form complex img/form-complex.png binding gamma-secretase 0.956
Publications: 1 Organism: Homo Sapiens
Pathways:Alzheimer
+ up-regulates img/direct-activation.png binding PSEN1 0.907
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png chemical inhibition PSEN1 0.8
Publications: 1 Organism: Homo Sapiens
+ down-regulates img/direct_inhibition.png binding CTNNB1 0.802
Publications: 1 Organism: Homo Sapiens
+ up-regulates img/direct-activation.png cleavage NOTCH1 0.79
Publications: 1 Organism: Homo Sapiens