On p. 531 of the June 2001 issue, an incorrect version of a figure was printed to accompany the News & Views article entitled “Holistic approaches to glycobiology” by Pauline M. Rudd, Ghislain Opdenakker, and Raymond A. Dwek. The correct version of the figure can be viewed at http://www.nature.com/nbt/journal/ v19/n6/fig_tab/nbt0601_531_F1.html