Figure 6. The Cathepsin-L-like Protease CP1 Is Specific to SV Hubs.
(A–D″) Live imaging of CP1-DF in wild-type (A–A″), rab7 (B–B″), v100 (C–C″), or nsyb (D–D″) mutant axon terminals. White arrowhead, acidic (red-only live) compartment; yellow arrowhead, non-acidic (yellow live) compartment.
(E and F) Relative number of acidified (red) or non-acidified (yellow) CP1-DF-positive compartments at axon terminals (E) and cell bodies (F). Mean ± SEM; *p < 0.05; ***p < 0.001; ****p < 0.0001; brain n = 3 per experimental condition; unpaired t test. See also Figure S7.