Figure 27.16: Low-resolution models of the small and large ribosomal subunits and their 70S complex, as deduced from early electron microscopy studies.

Courtesy of M. Oaks, A. Scheirman, T. Atha, G. Shankweiler, and J. A. Lake, The Ribosome, W. E. Hill, A. Dahlberg, R. A. Garret, P. B. Moore, D. Schlessinger, and J. R. Warner, eds.,p. 181 (New York:American Society of Microbiology Press, 1990).