Fig 1.

Putative PULs from selected Bacteroidota species. Top, the Chitinophaga pinensis FCWUL is proposed to span genes with locus tags Cpin_2184 to Cpin_2192, as shown. The colored genes in the C. pinensis locus have equivalents (i.e., the same CAZyme modularity or predicted function) in the other loci depicted, which are shown in the same color. The gene product of Cpin_2185 is a putative β/γ crystallin lysyl endopeptidase according to KEGG and NCBI automated annotations. Cpin_2189 and Cpin_2190 encode an ECF-σ and anti-σ factor, respectively. The arrows on each gene point in the direction of transcription. PULs from other species with full or partial predicted functional synteny to the FCWUL are shown, with color coding matched to the CAZyme architecture of the labeled components of the C. pinensis locus. Syntenic PULs were identified using the KEGG server gene cluster analysis tool together with manual NCBI searching.