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See detailRGD, the Rho'd to cell spreading
Salsmann, Alexandre UL; Schaffner-Reckinger, Elisabeth UL; Kieffer, Nelly UL

in European Journal of Cell Biology (2006), 85(3-4), 249-254

Some RGD-type integrins rely on a synergistic site in addition to the canonical RGD site for ligand binding. However, the precise involvement of each of these recognition sites during cell adhesion is ... [more ▼]

Some RGD-type integrins rely on a synergistic site in addition to the canonical RGD site for ligand binding. However, the precise involvement of each of these recognition sites during cell adhesion is still unclear. Here we review recent investigations on integrin alphaIIbbeta3-mediated cell adhesion to immobilized fibrinogen providing evidence that the fibrinogen synergy gamma(400-411) sequence by itself promotes cell attachment by initiating alphaIIbbeta3 clustering and recruitment of intracellular proteins to focal complexes, while the RGD motif subsequently acts as a molecular switch on the beta3 subunit to induce a conformational change necessary for RhoA activation and full cell spreading. [less ▲]

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