Fig. 6.

Co-occurrence of RhlE-like helicases with CsdA- and CrhR-like proteins. The RhlE-like maximum-likelihood helicase tree was extracted from Fig. S2. Annotations indicate whether the second DEAD-box protein in each strain is from the CrhR-like or CsdA-like groups. Essentially, RhlE is only found in conjunction with either CrhR or CsdA. Bootstrap values ≥50 % are shown at the nodes. Taxa colours indicate the cyanobacterial taxonomic order: purple, Synechococcales ; light green, Nostocales ; dark green, Oscillatoriales . The position of E. coli RhlE is provided to support the classification.