This technology includes an antibody that enables the identification and isolation of the protein and protein partners of Vangl2 for application by western blotting, immunoprecipitation and immunocytochemistry. Because planar cell polarity signaling disruption leads to direct or indirect pathologies including malformation of the neural tube, mental retardation, disruption of sensory functions (hearing, balance, vision), cancers (polykystic kidneys disease), or cardiac

malformations and disruption of chirality (situs inversus), we can envision that the antibody could be used as a diagnostic tool.