integrin(redirected from Integrin alpha4)
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integrin/in·te·grin/ (in´tĕ-grin) any of a family of heterodimeric cell adhesion receptors, each consisting of an α and a β polypetide chain, that mediate cell-to-cell and cell-to–extracellular matrix interactions.
Any of a group of transmembrane proteins that bind to certain molecules in the extracellular matrix or on the surface of other cells. They are involved in cell adhesion and motility and in the transmission of signals across the plasma membrane.
1 a protein that links the outside of a cell with its interior.
2 a heterodimeric molecule involved in cell-substate and cell-cell adhesion.