By comparing exon-intron position in higher eukaryotes to available large scale nucleosome positioning datasets, two independent groups now find that exons tend to have higher nucleosome occupancy than introns.

Tilgner H*, Nikolaou C*, Althammer S, Sammeth M, Beato M, Valcárcel J, Guigó R. (2009) Nucleosome positioning as a determinant of exon recognition. Nat Struct Mol Biol. 2009 Sep;16(9):996-­‐1001.

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