The TPR domain of PgaA is a multifunctional scaffold that binds PNAG and modulates PgaB-dependent polymer processing. - Pfoh, Roland; Subramanian, Adithya S.; Huang, Jingjing; Little, Dustin J.; Forman, Adam; DiFrancesco, Benjamin R.; Balouchestani-Asli, Negar; Kitova, Elena N.; Klassen, John S.; Pomès, Régis; Nitz, Mark; Howell, P. Lynne (PLoS Pathogens, 2022)