selectin

A cell surface molecule involved in immune adhesion and cell trafficking. [L. se-ligo, pp. se-lectum, to sort, choose, + -in]

- E s. cell surface receptor produced by endothelium.

- L s. cell surface receptor produced by leukocytes.

- P s. cell surface receptor present on endothelium that is involved with neutrophil migration into inflamed tissue.

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se·lec·tin sə-'lek-tin n any of a family of sugar-binding lectins that are found on the surface of cells (as endothelial cells and white blood cells) and that promote their adhesion to other cells and mediate their migration to sites of inflammation

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se·lec·tin (sə-lekґtin) any of a family of cell adhesion molecules consisting of a lectin-like domain, an epidermal growth factor–like domain, and a variable number of domains that encode proteins homologous to complement-binding proteins; their function is to mediate the binding of leukocytes to the vascular endothelium.