Peptides/metabolism; Peptides/physiology; Retroviridae Proteins, Oncogenic/metabolism; src-Family Kinases/metabolism; Actins/chemistry; Actins/metabolism; Amino Acid Motifs; Animals; Cell Adhesion; Cell Line; DNA, Complementary/metabolism; Fibroblasts/metabolism; Fluorescent Antibody Technique, Indirect; Focal Adhesions/metabolism; HeLa Cells; Humans; Intracellular Signaling Peptides and Proteins; Male; Mice; Models, Biological; NIH 3T3 Cells; Oncogene Protein v-cbl; Osteoclasts/metabolism; Peptides/chemistry; Phosphorylation; Phosphotyrosine/chemistry; Plasmids/metabolism; Precipitin Tests; Protein Binding; Spleen/cytology; Transfection; Two-Hybrid System Techniques; Tyrosine/metabolism