Fig. 6.

Gene ontology enrichment analysis of oxidized proteins. The 403 proteins identified to contain sites of methionine oxidation upon high light stress were submitted to a GO enrichment analysis using AmiGO. The complete proteome of A. thaliana was chosen as a reference set. Significantly enriched GO categories (p < 0.01) discussed in the main text are listed, and the enriched frequencies of methionine-oxidized proteins (dark red) are shown. The frequency of all A. thaliana proteins in these enriched categories is also shown (light red) as part of the total enriched MetO protein frequency bars. SA, salicylic acid; SAR, systemic acquired resistance.