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. 2011 Jan 11;6(1):e15876. doi: 10.1371/journal.pone.0015876

Figure 6. Recombinant protein activity of the AI2+ and AI2- strains used in this paper.

Figure 6

A. Paired homocysteine and AI-2 data from the LuxS recombinant proteins. rLuxS+ is the recombinant LuxS protein from 81116AI2+ and rLuxS- is the recombinant protein from 81116AI2-. Black bars represent the homocysteine levels measured using the DNTB reaction measured by Absorbance at 412 nm (right axis). The grey bars represent the AI-2 values measured by V. harveyi bioluminescence (left axis). Values for each sample were measured on split samples.