Comparative alignments of the C-terminal regions (E-to-DYW domain) of seven PPR-containing proteins (CRR4, CRR21, CLB19, CRR22, CRR28, YS1, and RARE1) that are known to influence chloroplast RNA C-to-U editing. The C-terminal domains (E-to-DYW) of published protein model sequences and the consensus E-to-DYW sequence (Lurin et al. 2004) were aligned using T-Coffee v. 5.05 and are presented using Jalview v.2 (Waterhouse et al. 2009). Intensity of shading reflects the percentage of sequence identity. The arrows indicate the beginning of the consensus of the E, E+, and DYW domains. The vertical arrow indicates the beginning of the highly conserved region, which continues to the C terminus, of the DYW domain.
