Fig. 6
From: Release factor-dependent ribosome rescue by BrfA in the Gram-positive bacterium Bacillus subtilis
RF-dependent ribosome rescue factors in bacteria. a Independent evolution of the RF-dependent ribosome rescue factors. ArfA and BrfA are unrelated in their amino acid sequences despite the same partner (RF2) specificity. ArfT forms a still distinct group and cooperates with either of RF1 or RF2. They show narrow distributions among bacterial species. b, c A schematic model highlighting the similarities and differences between (b) BrfA- and (c) ArfA-mediated ribosome rescue mechanism.
