Gly-Arg-Gly-Asp-Ser has been used-as an antigen to determine whether integrin α4 or α5 hinders the adhesion of day 3 postirradiation thymocytes to thymic epithelial cells, in micefor the treatment of collagen IV-coated dishes to study the role of integrins α1, αv, β1, and β3 in Sca-1+progenitor cell differentiation into SMCs (smooth muscle cells)as a blocking peptide for the pre-incubation ofNisseria meningitidesstrains, to perform blocking experiments to study the interactions between these bacterial strains and fibronectinfor the pre-treatment of EL-4 cells infected by AdCMV-GFP (cytomegalovirus-green fluorescent protein), to study whether interaction with cellular integrins is essential for the transduction of adenovirus