Representative images of bi-dimensional DIGE of protein extracts from <i>Brucella ovis</i> wild type and Δ<i>abcBA</i> mutant.

<p>(A) Enumerated spots were differently expressed (p<0.05) between Δ<i>abcBA</i> and WT strains and selected for mass spectrometry. Spots with lower expression were excised from <i>B. ovis</i> WT gel (left panel), whereas spots with higher expression were excised from <i>B. ovis</i> Δ<i>abcBA</i> gel (right panel). (B) Topographic 3D images of the signal intensity correspond to a lowly expressed (left) and a highly expressed (right) spot.</p>