NECTIN2 (Nectin Cell Adhesion Molecule 2): NECTIN2, also known as CD112, is a transmembrane protein belonging to the nectin family that mediates cell-to-cell adhesion. It is primarily expressed in epithelial and neuronal tissues and interacts with other nectins and receptors such as DNAM-1 (CD226), CD96, and TIGIT. NECTIN2 plays a crucial role in the formation and maintenance of adherens junctions and synaptic connections, affecting cell migration, polarisation, and synaptic transmission.