Figure 2

Feedback between amyloid precursor protein and its proteolytic fragments. Inhibition is shown in red, enhancement in green; numbers are referred to in the text. Functionally different aggregation states for the Aβ-type peptides are collapsed into P3 and Aβ nodes for clarity. Aβ, amyloid beta protein; AICD, APP intracellular domain; APP, amyloid precursor protein; PKC, protein kinase C; sAPP, secreted amyloid precursor protein.