Figure 2

Double isotope-labeled amino acid incorporation in secretomes from VAT and SAT explants.
The number of total labeled peptides in VAT and SAT in relation to total identified peptides after a 72 hours labeling period is represented in histograms (A). The number of peptides labeled with Lys (K), Arg (R), or different combinations of isotope-labeled amino acids (K+R, R+R and K+K) is shown for VAT and SAT (B). Labeled amino acid incorporation efficiency is represented as percentage of labeled peptides in VAT and SAT.