Structural studies of bacterial adhesion by Sulkowski, N

“…The HfsDAB secretion proteins are required for assembly and localization of the HfaABD anchor, which spans the outer membrane of the stalk tip. The anchor protein HfaB is the major component of the anchor complex located on the periplasmic side of the outer membrane, while HfaA and HfaD are located on the cell surface. …”