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  • 1
    Publication Date: 1999-03-26
    Description: Spatially resolved fluorescence resonance energy transfer (FRET) measured by fluorescence lifetime imaging microscopy (FLIM), provides a method for tracing the catalytic activity of fluorescently tagged proteins inside live cell cultures and enables determination of the functional state of proteins in fixed cells and tissues. Here, a dynamic marker of protein kinase Calpha (PKCalpha) activation is identified and exploited. Activation of PKCalpha is detected through the binding of fluorescently tagged phosphorylation site-specific antibodies; the consequent FRET is measured through the donor fluorophore on PKCalpha by FLIM. This approach enabled the imaging of PKCalpha activation in live and fixed cultured cells and was also applied to pathological samples.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Ng, T -- Squire, A -- Hansra, G -- Bornancin, F -- Prevostel, C -- Hanby, A -- Harris, W -- Barnes, D -- Schmidt, S -- Mellor, H -- Bastiaens, P I -- Parker, P J -- New York, N.Y. -- Science. 1999 Mar 26;283(5410):2085-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Protein Phosphorylation Laboratory and Cell Biophysics Laboratory, Imperial Cancer Research Fund (ICRF), 44 Lincoln's Inn Fields, London, WC2A 3PX, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/10092232" target="_blank"〉PubMed〈/a〉
    Keywords: 3T3 Cells ; Animals ; Breast Neoplasms/enzymology ; COS Cells ; Catalysis ; Cytoplasm/enzymology ; Endoplasmic Reticulum/enzymology ; Energy Transfer ; Enzyme Activation ; Fluorescence ; Fluorescent Dyes ; Golgi Apparatus/enzymology ; Green Fluorescent Proteins ; Humans ; Immune Sera ; Isoenzymes/immunology/*metabolism ; Luminescent Proteins ; Mice ; *Microscopy, Fluorescence ; Phosphorylation ; Phosphothreonine/immunology/metabolism ; Protein Kinase C/immunology/*metabolism ; Protein Kinase C-alpha ; Tetradecanoylphorbol Acetate/pharmacology ; Transfection
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    FEBS Letters 291 (1991), S. 273-276 
    ISSN: 0014-5793
    Keywords: ADP-ribosylation factor (ARF) ; Choleratoxin ; Rhodopsin ; Transducin
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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