Fig. 4.

Conservation in the C-terminal extension of cyanobacterial DEAD-box proteins. Comparisons of the conservation in the C-terminal extensions of the three clades of cyanobacterial DEAD-box RNA helicases are shown using sequence logos, with the size of the amino acid indicating its conservation. The CrhR-specific sequence motif is indicated in pink and the DbpA RNA binding domain is marked in blue. Sequence logos were generated in WebLogo 3 from alignments of all cyanobacterial DEAD-box proteins in each clade.