Chlamydial Antigens Colocalize within IncA-Laden Fibers Extending from the Inclusion Membrane into the Host Cytosol

Chlamydial IncA localizes to the inclusion membrane and to vesicular fibers extending away from the inclusion. Chlamydial outer membrane components, in the absence of developmental forms, are found within these fibers. This colocalization may explain how chlamydial developmental form antigens are localized outside of the inclusion within infected cells.