PCDH20 (Protocadherin 20): PCDH20 is a member of the protocadherin family, proteins involved in cell-cell adhesion and signaling, particularly in the nervous system. PCDH20 plays a role in neural development and connectivity, contributing to the formation and maintenance of neural networks. Dysfunctions in PCDH20 have implications for neurodevelopmental disorders and may affect cognitive and sensory processes....