Figure 2.

Quantitative proteomic data. Analysis of coculture protein samples using iTRAQ labeling and shotgun liquid chromatography–mass spectrometry methods identified 82 proteins from M. maripaludis (out of 207 total coculture proteins) by at least two unique, high-confidence peptides in replicate runs. Among these 82 M. maripaludis proteins (Supplementary Table S1), 8 exhibited significant abundance increases (Table 3). Plot shows log₂ ratios of the iTRAQ ratios of proteins from coculture versus the synthetic blend. The synthetic blend contains a 50:50 mixture of D. vulgaris to M. maripaludis, whereas the coculture is a 80:20 mixture of the same. Normalized data was used. For complete data see Supplementary Table S1.