Fig. 4: NMJ structure was normal in Agrin cKO mice.

A Representative images of NMJs in cKO and control mice at 1, 3, 6 and 12 months of age. TA muscles were stained with α-BTX to label AChRs (red) and NF/SYN (green) to label nerve terminals. Scale bar = 10 μm. (B) Quantification of data in A. n = 8 mice per group and 25–30 NMJs of each mouse were counted.