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Proposed structures of Yersinia lipid A molecules. Yersinia species are capable of producing a variety of lipid A structures that are influenced by their surrounding environments. (A) Y. pestis grown at 37 °C. (B) Y. pseudotuberculosis grown at 37 °C. (C) Y. enterocolitica grown at 37 °C. (D) Y. pestis, Y. pseudotuberculosis, and Y. enterocolitica grown <26 °C, (E, F) PagP+ palmitoylated lipid A species.
