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Table 1 Agglutination assay results between APN and F4 + E. coli

From: Porcine aminopeptidase N binds to F4+ enterotoxigenic Escherichia coli fimbriae

Bacterial Strain

Agglutination with APNa

F4ab

+++

rF4ab

++++

F4abΔfaeG

+/−

F4ac

+++

rF4ac

++++

F4acΔfaeG

+/−

F4ad

++

rF4ad

+++

F4adΔfaeG

+/−

SE5000

−

DH5α

−

  1. a++++ = nearly 100% agglutination; +++ = turbid background with intermediate agglutination; ++ = obvious but not strong agglutination; +/− = insignificant agglutination; − = no agglutination.