The Type IX Secretion System exports proteins across the outer membrane (OM) of bacteria in the Bacteroidota phylum, however, the mechanistic details remain unknown. Here, we present a ~3.5Å cryo-EM structure of the periplasmic rings comprising 32-33 subunits each of PorK and PorN. Additionally, we ...
ORGANISM(S): Porphyromonas gingivalis ATCC 33277 Porphyromonas gingivalis (strain ATCC BAA-308 / W83)