Subject: GAL4 lines, your fax from the 12th July Dear Rachel, The sca-GAL4 line is a GAL4 enhancer trap insertion in the scabrous gene. It was generated by Dr. U. Hinz, Koeln. It causes a very weak hypomorphic sca phenotype. The rho-GAL4 line is a promotor-GAL4 line generated in M.Levin's lab. There are no further references to these lines to my knowledge. I hope this information is sufficient, best wishes Christian Dr. Christian Klaembt Institut fuer Entwicklungsbiologie Universitaet zu Koeln D 50923 Koeln