Phosphoethanolamine Transferase LptA in Haemophilus ducreyi Modifies Lipid A and Contributes to Human Defensin Resistance In Vitro. oleh Michael P Trombley, Deborah M B Post, Sherri D Rinker, Lorri M Reinders, Kate R Fortney, Beth W Zwickl, Diane M Janowicz, Fitsum M Baye, Barry P Katz, Stanley M Spinola, Margaret E Bauer