Knockdown of lpin1 in zebrafish embryos affected neuron development and AChR clustering. Znp1 antibody staining (A-B) and α-BTX labeling (A'-B') of control embryos (A-A'') and lpin1 morphants (B-B'') at 26 hpf. Zn8 antibody staining (C-D) and α-BTX labeling (C'-D') of control embryos (C-C'') and lpin1 morphants (D-D'') at 60 hpf. Scale bar: 100 µm. Measurements of the length of motor neurons (E, n = 6 motor neurons/larvae), the distance between two adjacent motor neurons (F, n = 6 segments/larvae), the angle of AChR clusters (G, n = 6 AChR clusters/larvae), and the density of post-synapses (H, n = 6 areas of myotome/larvae), were carried out in 9 larva under each treatment. (I) Schematic representations of the parameters in E, F, G and H. *** indicates p < 0.001 by Student's t-test.