Microorganism agglutination assays of rEsLecF protein in the absence or presence of calcium.

<p><i>E. coli</i>, <i>S. aureus</i> and <i>P. pastoris</i> were incubated with rEsLecF and either (1) EDTA + Ca²⁺, (2) TBS as blank or (3) Ca²⁺. Scale bar: 40 μm. rTrx protein was set as negative control.