unsubscribe cellbiol at net.bio.net end Juan Carlos GALLEGO-GOMEZ Department of Cellular and Molecular Biology Department of Macromolecular Structure/Electron Microscopy Unit CENTRO NACIONAL DE BIOTECNOLOGIA 28049. Cantoblanco, Madrid - Spain. Tel: 91 585 45 52 Fax: 91 585 45 06 JCGallego at cnb.uam.es drakoworklic at hotmail.com ---