Fig. 2: CT pilin and its gene cluster are widely distributed in cyanobacteria.
From: A family of tubular pili from harmful algal bloom forming cyanobacterium Microcystis aeruginosa
a Gene structures of the CT pilus in M. aeruginosa and similar clusters identified in other cyanobacteria species. b AlphaFold predictions for proteins in the M. aeruginosa cluster. Putative annotations are based on sequence database and Foldseek searches. Predicted models are colored corresponding to gene colors. c Midpoint-rooted maximum likelihood phylogeny of CT pilin homologs. Tree branches are colored by organism taxonomy, with taxon names indicated. The position of M. aeruginosa CT pilin is marked with a blue star. Blue circles indicate approximate likelihood ratio test (aLRT) branch supports higher than 90%. The scale bar represents the number of substitutions per site. d Comparison of the CT pilin in M. aeruginosa with putative pilins in other cyanobacteria. Representative AlphaFold predictions are shown for the same strains used in (a). The order of these strains is indicated by the background color, which matches the order color scheme in (c).
