Abstract
Electron microscopy has been the ‘gold standard’ of spatial resolution for studying the structure of the cell nucleus. Electron spectroscopic imaging (ESI) offers advantages over conventional transmission electron microscopy by eliminating the need for heavy-atom contrast agents. ESI also provides mass-dependent and element-specific information at high resolution, permitting the distinguishing of structures that are primarily composed of protein, DNA, or RNA. The technique can be applied to understand the structural consequences of epigenetic modifications, such as modified histones, on chromatin fiber morphology. ESI can also be applied to elucidate the multifunctional behavior of subnuclear ‘organelles’ such as the nucleolus and promyelocytic leukemia nuclear bodies.
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The authors dedicate this paper to the memory of Ying Ren (1961–2007). We all benefited from knowing her. Our research advanced through the technical creativity she provided.
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Bazett-Jones, D.P., Li, R., Fussner, E. et al. Elucidating chromatin and nuclear domain architecture with electron spectroscopic imaging. Chromosome Res 16, 397–412 (2008). https://doi.org/10.1007/s10577-008-1237-3
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DOI: https://doi.org/10.1007/s10577-008-1237-3