November 2004 issue
Cover illustration: Electron-density map of the protein histone methyltransferase SET 7/9 contoured at 1 calculated from the peak-wavelength Se-SAD data. Phases were derived by OASIS-2004 and improved by DM. The data were provided by Drs S. J. Gamblin and B. Xiao. The protein was originally determined by J. R. Wilson et al. [(2002), Cell, 111, 105-115] using the MAD method. The refined structure model from the original authors is superimposed on the electron-density map (p. 1987).