4KPH:
reference: The binding sites of monoclonal antibodies to the nonreducing end of Francisella tularensis O-antigen accommodate mainly the terminal saccharide., Lu Z, Rynkiewicz MJ, Yang CY, Madico G, Perkins HM, Wang Q, Costello CE, Zaia J, Seaton BA, Sharon J, Immunology. 2013 Jul 11. doi: 10.1111/imm.12150. PMID: 23844703

This OCA Structure page
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