FibronectinsCarbohydratesReceptors, FibronectinGlycopeptidesFibroblastsPeptide FragmentsElectrophoresis, Polyacrylamide GelTrypsinAmino AcidsCell LineMolecular WeightCell AdhesionExtracellular MatrixIntegrin alpha5beta1IntegrinsLamininGelatinCollagenExtracellular Matrix ProteinsCells, CulturedTenascinIntegrin alpha5Antigens, CD29OligopeptidesVitronectin