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  • Title: Analysis of organelles within the nervous system: impact on brain and organelle functions.
    Author: Tribl F, Meyer HE, Marcus K.
    Journal: Expert Rev Proteomics; 2008 Apr; 5(2):333-51. PubMed ID: 18466061.
    Abstract:
    Currently, neuroproteomic approaches aimed at the profiling of total brain areas generally mirror the expression of the most abundant proteins, but fail to uncover less abundant proteins. By contrast, the focus on typical brain subproteomes, (e.g., synaptic vesicles, synaptic terminal membranes or the postsynaptic density), may give a more specific insight into brain function. Subproteomes are accessible via several strategies, including subcellular fractionation or affinity-based pull-down approaches. Combined with mass spectrometric quantification approaches, subcellular proteomics is expected to reveal differences in the protein constitution of related cellular organelles. Focusing on novel functions and mechanistic models, we review recent data on the analysis of brain-derived organelles and subproteomes, including presynaptic termini, synaptic vesicles, neuronal plasma membranes, postsynaptic density and neuromelanin granules, which were identified as novel lysosome-related organelles within the human brain.
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