Fig. 3. N-cadherin mutants do not affect NC delamination. (A)
Schematic of N-cadherin mutants used. (B-G) Transverse sections through
embryos electroporated with: (B,D) control-GFP; (C,E) cN390
-GFP; (F)
CBR-GFP; (G) JMD-GFP. (H) NT explanted on fibronectin following
transfection with cN390
-GFP. (I) Quantification of NC
delamination. Efficiency of electroporation was greater than 70%. Results
represent the mean±s.d. of five embryos per treatment normalized to
control values. The extent of NC emigration was not affected by the mutant
DNAs (arrows in D-G, and I), but labeled emigrating NC cells appeared more
dispersed than controls (arrows in B,C). Transfected NT cells lost epithelial
morphology in cN390
-GFP and CBR-GFP-treated cases, and NC cells
emigrated as round cells from NT explants (H). Scale bar: 38 µm for D-G; 45
µm for H.