
Fig. 6. SNa phenotypes in Ptp52F mutants. Dissected late stage 16 embryos stained with mAb 1D4. (A) Wild type. The SNa bifurcation (arrow) and muscle 12 are indicated. (B-D) Ptp52F18.3. There is an extra branch in B (arrow). The anterior branch is missing in C. Most SNa axons appear to stall near the bifurcation point in D (arrow).