Figure 2.

Definition of core proteomes. A total of 305 and 92 unique proteins were identified in βC-plastoglobuli and CLD, respectively. These proteins were passed through two sequential filters: the enrichment filter and the contamination filter. The enrichment filter excluded protein with a lipid droplet to thylakoid ratio less than 2. The contamination filter excluded proteins appearing on the synthetic globule proteome. Totals of 193 and 56 proteins in βC-plastoglobuli and CLD, respectively, passed both filters. Core proteins were defined as having a lipid droplet to thylakoid ratio greater than 10 and more than two peptides or a lipid droplet to thylakoid ratio greater than 4 and more than nine peptides. The final core proteomes comprise 42 and 124 core proteins in CLD and βC-plastoglobuli, respectively.