Figure 2
From: Multiplex enzyme activity imaging by MALDI-IMS of substrate library conversions
(1) and (2) Tissue maps, spectra, and dot plots of time-dependent enzyme product generation. (A) Heat maps of substrates and mass signal generation of detectable enzyme products after 5, 15, 60, and 120 min of incubation. (B) Corresponding mean mass spectra of the whole kidney areas with (black spectra) and without application of peptide substrate mix (green spectra). (C) Dot plots and corresponding box plots of each mass signal pixel with and without peptide mix.
