Fig. 7.

Envelope composition: curated annotation and functional categories. Functional annotations were retrieved from supplemental Data 10. Two sets of proteins were analyzed: the “whole envelope proteome” (460 proteins) corresponding to proteins with abundance in purified envelope fraction above measured cross-contamination levels (first 460 proteins in supplemental Data 10) (A) and the more specific envelope proteome (298 proteins), which only contains proteins displaying increased abundance in envelope fractions compared with other plastid compartments (first 298 proteins in supplemental Data 10) (B). In both cases, non-plastid proteins were excluded.