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Definition: a type I transmembrane protein present on monocytes, neutrophils, leukocytes, fibroblasts, platelets, and myoblasts that helps form a receptor for fibronectin and activates the sodium-hydrogen antiporter; may serve an accessory role to T-cell activation.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.