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Search: WFRF:(Skogs Marie 1981 )

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  • Skogs, Marie, 1981- (author)
  • Antibody-based subcellular localization of the human proteome
  • 2016
  • Licentiate thesis (other academic/artistic)abstract
    • This thesis describes the use of antibodies and immunofluorescence for subcellular localization of proteins. The key objective is the creation of an open-source atlas with information on the subcellular location of every human protein. Knowledge of the spatial distribution and the precise location of a protein within a cell is important for its functional characterization, and describing the human proteome in terms of compartment proteomes is important to decipher cellular organization and function. Immunofluorescence and confocal microscopy of cultured cells were used for high-resolution detection of proteins on a high-throughput scale. Critical to immunofluorescence results are sample preparation and specific antibodies. Antibody staining of cells requires fixation and permeabilization, both of which can result in loss or redistribution of proteins and masking of epitopes. A high-throughput approach demands a standardized protocol suitable for the majority of proteins across cellular compartments. Paper I presents an evaluation of sample preparation techniques from which such a single fixation and permeabilization protocol was optimized. Paper II describes the results from applying this protocol to 4000 human proteins in three cell lines of different origin. Paper III presents a strategy for application-specific antibody validation. Antibodies are the key reagents in immunofluorescence, but all antibodies have potential for off-target binding and should be validated thoroughly. Antibody performance varies across sample types and applications due to the competition present and the effect of the sample preparation on antigen accessibility. In this paper application-specific validation for immunofluorescence was conducted using colocalization with fluorescently tagged protein in transgenic cell lines. 
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  • Thul, Peter J., et al. (author)
  • A subcellular map of the human proteome
  • 2017
  • In: Science. - : American Association for the Advancement of Science. - 0036-8075 .- 1095-9203. ; 356:6340
  • Journal article (peer-reviewed)abstract
    • Resolving the spatial distribution of the human proteome at a subcellular level can greatly increase our understanding of human biology and disease. Here we present a comprehensive image-based map of subcellular protein distribution, the Cell Atlas, built by integrating transcriptomics and antibody-based immunofluorescence microscopy with validation by mass spectrometry. Mapping the in situ localization of 12,003 human proteins at a single-cell level to 30 subcellular structures enabled the definition of the proteomes of 13 major organelles. Exploration of the proteomes revealed single-cell variations in abundance or spatial distribution and localization of about half of the proteins to multiple compartments. This subcellular map can be used to refine existing protein-protein interaction networks and provides an important resource to deconvolute the highly complex architecture of the human cell.
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  • Wiking, Mikaela, et al. (author)
  • Drafting the intermediate filament proteome
  • 2016
  • In: Molecular Biology of the Cell. - : American society of cell biology. - 1059-1524 .- 1939-4586. ; 27
  • Journal article (peer-reviewed)
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  • Result 1-6 of 6

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