Gamma-secretase-activating protein (GSAP)

Regulator of gamma-secretase activity, which specifically activates the creation of amyloid-beta protein (amyloid-beta protein 40 and amyloid-beta protein 42), without affecting the cleavage of additional gamma-secretase targets such has Notch. The gamma-secretase complex is an endoprotease complex that catalyzes the intramembrane cleavage of integral membrane proteins such as Notch receptors and APP (amyloid-beta precursor protein).

Specifically promotes the gamma-cleavage of APP CTF-alpha (also named APP-CTF) by the gamma-secretase complex to generate amyloid- beta, while it reduces the epsilon-cleavage of APP CTF-alpha, causing a very low production of AICD. .