Abstract
The cover illustration of the August 2009 issue of EMBO reports , although aesthetically pleasing, is unfortunately erroneous and could come as a shock to researchers in the chromatin field. Canonical nucleosomes are indeed left‐handed, such as the nucleosomes in the left ‘column’ of chromatin fibres on the cover. However, in the right ‘column’, the chirality of the nucleosomes has been inverted: they are drawn in a non‐canonical, right‐handed conformation. This mistake is sadly quite common: many textbooks, publications and websites feature images of nucleosomes displaying the wrong chirality. Try a search for “nucleosome” in Google Images: there is a good chance that the first hit will display the right‐handed nucleosome originally—and incorrectly—drawn for a popular textbook. To make things worse, this image has been frequently adapted in many other contexts. For instance, it acts as an illustration for the Wikipedia nucleosome entry in several languages, including French. If you would like more …
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