Relative abundance of proteins identified in MALDI IMS

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binding sites 58 of the 473 unambiguously assigned phosphorylation sites are predicted by Scansite to be sites for binding. 50 of these correspond.

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Phosphopeptides identified harboring minimal binding motifs

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Relative abundance of proteins identified in MALDI IMS Relative abundance of proteins identified in MALDI IMS. A, Proteins from all 10 human tissues were ranked according to the number of assigned spectra divided by the molecular weight of the proteins' database entry. Relative abundance of proteins identified in MALDI IMS.A, Proteins from all 10 human tissues were ranked according to the number of assigned spectra divided by the molecular weight of the proteins' database entry. MALDI IMS markers extracted from the literature (see also Table I and supplemental Table S5) are indicated in orange showing that these are mainly abundant cellular proteins. B, Proteins identified from the MALDI matrix layer plotted against the ranked protein abundance used in panel A). Stefan K. Maier et al. Mol Cell Proteomics 2013;12:2901-2910 © 2013 by The American Society for Biochemistry and Molecular Biology, Inc.