FIGURE 2. Composite of stained gel (left) and gel that was autoradiographed (right). Major portion of radioactivity (right) was associated with 3 protein bands of apparent molecular weights >250, 22, and 6 kDa. Irrespective of different time periods for which 111In remained in cells (2, 24, or 48 h), neither distribution nor portion of 111In bound to proteins was changed.