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Nectin

Nectins and Nectin-like molecules (Necl) are families of cellular adhesion molecules involved in Ca-independent cellular adhesion.

Nectins are ubiquitously expressed and have adhesive roles in a wide range of tissues such as the adherens junction of epithelia or the chemical synapse of the neuronal tissue.

Wiktionary

nectin

n. (context protein English) Any of a family of proteins that have a function in cell-to-cell adhesion