text_1: Fz/PCP-dependent Pk localizes to the anterior membrane of neuroectoderm cells during zebrafish neuralation
text_2: Loss of zebrafish Vangl2 (in trilobite mutants) abolishes the polarization of neural keel cells, disrupts re-intercalation of daughter cells into the neuroepithelium, and results in ectopic neural progenitor accumulations and NTDs.