Epitope Mapping of the Protective Antigen of B. Anthracis by Using Nanoclusters Presenting Conformational Peptide EpitopesThis research was funded in part by a Vanderbilt Institute of Chemical Biology fellowship (A.E. Gerdon), the Chemical Biology Interface training grant (AE Gerdon, T32 GM065086), and the Vanderbilt Institute of Nanoscale Science and Engineering (A.E. Gerdon). DWW acknowledges support from the SouthEast Regional Center of Excellence for Biodefense (NIH U54 AI57157-03).