Abstract
MELK is an ultrasensitive topological proteomics technology analysing proteins on the single cell level (Multi-Epitope-Ligand-‘Kartographie’). It can trace out large scale protein patterns with subcellular resolution, mapping the topological position of many proteins simultaneously in a cell. Thereby, it addresses higher level order in a proteome, referred to as the toponome, coding cell functions by topologically and timely determined webs of interacting proteins. The resulting cellular protein maps provide new structures in the proteome: single combinatorial protein patterns (s-CPP), and combinatorial protein pattern motifs (CPP-motifs), bound to superior units. They are images of functional protein networks, which are specific signatures of tissues, cell types, cell states and diseases. The technology unravels hierarchies of proteins related to particular cell functions or dysfunctions, thus identifying and prioritising key proteins within cell and tissue protein networks. Interlocking MELK with the drug screening machinery provides new clues related to the selection of target proteins, and functionally relevant hits and drug leads. The present chapter summarizes the steps that have contributed to the establishment of the technology.
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Schubert, W. (2003). Topological Proteomics, Toponomics, MELK-Technology. In: Hecker, M., et al. Proteomics of Microorganisms. Advances in Biochemical Engineering/Biotechnology, vol 83. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-36459-5_8
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DOI: https://doi.org/10.1007/3-540-36459-5_8
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