The 2004 Federation of American Societies for Experimental Biology (FASEB) Summer Research Conference on 'Steroid Hormone Receptors: Integration of Plasma Membrane- and Nuclear-Initiated Signalling in Hormone Action' took place from 31 July to 5 August, 2004, in Tucson, Arizona, USA, and was organized by R. Pietras, E. Levin and M. Farach-Carson