Subject: RE: hel Dear Rachel, thank you for your note regarding our helicase, hel. I believe I spoke to M. Semeriva after I spoke at the Drosophila Conference here last spring. He did tell me they cloned another helicase using the 1A122 enhancer trap, which Norbert (Perrimon) sent to them. Our helicases are different--ours is at 25E. Regards, Lori Lorenz