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Dimer form of NanA. Western blot with anti-sialidase 40 kDa peptide serum under denaturing conditions (panel A) showing the 72 kDa monomer, or under native conditions (panel B) showing the 150 kDa dimer. Lane 1, C. chauvoei strain JF3703; lane 2, C. chauvoei strain JF4135.
