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Brief Communication

Nature Methods 5, 311–313 (1 April 2008) | doi:10.1038/nmeth.1196

In vivo immunogold labeling confirms large-scale chromatin folding motifs

Igor Kireev , Margot Lakonishok , Wenqiu Liu , Vishwas N Joshi , Rick Powell & Andrew S Belmont

The difficulty in localizing specific cellular proteins by immuno-electron microscopy techniques limits applications of electron microscopy to cell biology. We found that in vivo immunogold labeling improves epitope accessibility, ultrastructural preservation and three-dimensional visualization, and allows correlated light and electron microscopy.