Talin Binding to Integrin ß Tails: A Final Common Step in Integrin Activation
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- 3 October 2003
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 302 (5642) , 103-106
- https://doi.org/10.1126/science.1086652
Abstract
Control of integrin affinity for ligands (integrin activation) is essential for normal cell adhesion, migration, and assembly of an extracellular matrix. Integrin activation is usually mediated through the integrin β subunit cytoplasmic tail and can be regulated by many different biochemical signaling pathways. We report that specific binding of the cytoskeletal protein talin to integrin β subunit cytoplasmic tails leads to the conformational rearrangements of integrin extracellular domains that increase their affinity. Thus, regulated binding of talin to integrin β tails is a final common element of cellular signaling cascades that control integrin activation.Keywords
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