Bottom-up proteomic characterization of MALDI IMS samples.

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Bottom-up proteomic characterization of MALDI IMS samples. Bottom-up proteomic characterization of MALDI IMS samples.A, protein identification summary of ten human tissues. B, cumulated number of identified proteins from the ten different tissues and three protein extractions. Samples are ordered such that the highest number of identifications is obtained for the smallest number of samples combined. C, distribution of identified proteins by molecular weight. Bins were chosen according to the marker used in the SDS-PAGE shown in Fig. 1B. Blue bars represent the distribution of entries in the Uniprot database (human only). D, distribution of proteins by cellular compartment. Stefan K. Maier et al. Mol Cell Proteomics 2013;12:2901-2910 © 2013 by The American Society for Biochemistry and Molecular Biology, Inc.