Figure 3 - full size

Figure 3. Fig. 3. Ribbon plots (25) of the COOH-terminal domain of ribosomal protein S5 (20) (PDB accession code 1PKP), RNase P protein, and domain IV of the ribosomal translocase, EF-G (21) (PDB accession code 1DAR). Left-handed crossovers are highlighted in yellow. Topological similarities suggest evolutionary divergence from a primordial ribosomal ancestor.

The above figure is reprinted by permission from the AAAs: Science (1998, 280, 752-755) copyright 1998.