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Semin Thromb Hemost. 2004 Aug;30(4):427-39.

Protein-protein interactions in platelet alphaIIbbeta3 signaling.

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Division of Hematology-Oncology, Department of Medicine, University of California San Diego, La Jolla, California 92093, USA.


The major platelet integrin alpha (IIb)beta (3) is the main receptor involved in platelet functions such as aggregation and spreading on extracellular matrix. Like all other integrins, alpha (IIb)beta (3) is capable of transducing signals both from inside and outside of the cell. To mediate these functions, alpha (IIb)beta (3) interacts with intracellular and transmembrane proteins. The identification of these proteins, as well as the study of their functions, has provided valuable insights into integrin-mediated function and signaling. This review summarizes the known proteins that directly interact with alpha (IIb)bbeta (3) and provides an overview of their roles in integrin function.

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