The winning image of this month's Nature Cell Biology and Nature Reviews Molecular Cell Biology 'Cell of the Month' competition was submitted by Elena Kiseleva (Institute of Cytology and Genetics, Russia (elka@bionet.nsc.ru)). It shows nuclear pore complexes in a Saccharomyces cerevisiae nucleus.

Blue pseudo-colouring highlights the nuclear pore complexes, whereas green pseudo-colouring highlights the nuclear envelope together with the attached ribosomes. The image was obtained using a field emission scanning electron microscope (DS 130F, Topcon). Bar, 100 nm.

The winner would like to acknowledge the help of Martin W. Goldberg (University of Durham, UK) and Terry D. Allen (Paterson Institute for Cancer Research, UK).