Subject: FlyBase query Dear Dr. Pirrotta, I am curating your paper for FlyBase: Poux et al., 2001, Development 128(1): 75--85 and I have a question. 1. .. 'PBX+2212H1' transposon in Figure 7C. You reference the paper: Poux et al., 1996, EMBO J. 15(17): 4713--4722 for this construct. I would be grateful if you could tell me the name of the transposon in that paper, as FlyBase has a record of several constructs from that paper, and I need to work out which one it is, I look forward to hearing from you, Gillian \-------------------------------------------------------------- Gillian Millburn. FlyBase (Cambridge), \-------------------------------------------------------------- > Subject: Re: FlyBase query Dear Ms Millburn .. The PBX+2212H1 transposon is not explicitly listed in the Poux et al. 1996 paper. It contains the same PBX and 2212H1 fragments that are used in the constructs in Table II of that paper but without the PRE fragment. The origin of the fragments is shown in Figure 1 of that paper. If you prefer, I can look up the exact positions defining these fragments in the published sequence of the Ubx gene. Prof. Vincenzo Pirrotta Department of Zoology University of Geneva 30 quai Ernest Ansermet CH1211 Geneva, Switzerland