Figure 1.

Schematic illustration of the type III secretion gene cluster of Burkholderia rhizoxinica. Arrows represent protein-coding regions. Genotype symbols represented by capital letters are abbreviations for the sct genes. Violet: Conserved genes encoding T3SS core components with homology to functionally well-characterized reference T3SSs. Grey: Genes involved in type III secretion without functionally characterized homologs. Yellow: Genes likely involved in pilus formation, with SctF being the putative pilin protein. White: Transcriptional regulator of T3S. T3 secretion signal was predicted with the EFFECTIVE T3 software. The nucleotide sequence of the T3SS gene cluster has been deposited in the EMBL database under the accession number FN687446.