Figure 1.

Tubulin and c-src proteins coimmunoprecipitate in avian marrow macrophages. Adherent macrophages were either lysed directly in sample buffer (lane 5) or in lysis buffer and immunoprecipitated with either anti–c-src (lane 2) or antitubulin antibody (lane 3). Lysate and immunoprecipitates were subjected to SDS-PAGE, and the gel was stained with Coomassie blue. Lane 1 contains sample buffer, and lane 4 contains a positive control of enriched c-src protein extract.