4O4U:
reference: Nonbinding site-directed mutants of transferrin binding protein B enhances their immunogenicity and protective capabilities., Frandoloso R, Martinez-Martinez S, Calmettes C, Fegan J, Costa E, Curran D, Yu RH, Gutierrez-Martin CB, Rodriguez Ferri EF, Moraes TF, Schryvers AB, Infect Immun. 2014 Dec 29. pii: IAI.02572-14. PMID: 25547790

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