... onchromosome 2R. Only two nucleotide differences, whichdo not affect the deduced amino acid sequence, existbetween the sequences of DmEH and jheh2, indicatingthat these two are the same gene. Three ... possibleEH-encoding genes, designated jheh1, jheh2,andjheh3are located between 55F7 and 55F8 on chromosome 2R.The deduced amino acid sequences of all three genes werecompared with those of two ... Based on the occurrence of multiple copies of PPRE- and ARE-like sequences in the promoter regions of these three EH genes, they are probably regulated by manydifferent xenobiotics.AcknowledgementsWe...