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. 2019 Sep 13;10:4173. doi: 10.1038/s41467-019-12171-z

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Fig. 5 — Example of proteins that are depleted or enriched in CPR. In the left panel are represented four proteins (colored in red) that are involved in informational machineries and are depleted in CPR, yet widespread and important in non-CPR bacteria. In the right panel is represented a schematic model for the type IV pili and the competence systems that appear widespread in CPR bacteria