Hi, does anyone know of a testis-specific promoter to be used with GFP in general, and specifically for GFP-tubulin? Thanks, Barbara -- Dr Barbara Fasulo Istituto di Genetica Dipartimento di Genetica e Biologia Molecolare Universita' di Roma "La Sapienza" Ple Aldo Moro 5 - Roma 00185 ITALY Tel +39-06-49912556 Fax +39-06-4456866 email barbara.fasulo at uniroma1.it ---