Figure 4.

Relative protein abundance as a function of a) Drosophila age, defined here as days since eclosure. The normalized number of peptide hits is plotted on a relative abundance scale of 0 to 1, where 1 represents the maximum number of normalized peptide hits obtained across all ages at both temperatures for individual proteins. Relative abundances at 28 °C (■) and 18 °C (●) are shown for ferritin 2 light chain homologue (FBgn0015221) and larval serum protein 1β (FBgn0002563).