In the 1 November EMBO Journal, Parnell and Geyer describe a novel application of the FLP recombinase to investigate the properties of two Drosophila insulators, called gypsy and scs (EMBO J 2000, ...
but also control where and when such recombination occurs by dictating the expression pattern of the FLP or Cre recombinase. Cajal, S. R. Histology of the Nervous System of Man and Vertebrates ...