Subject: Curation Query Dear David, thanks for your message. You are right. For that experiment we used a UAS-nab insertion on the second chromosome that we generated. Best regards Fernnado J Diaz-Benjumea Dear Fernando, I have recently curated your 2007 Development paper (Felix et al., 2007 Development 134(10): 1845--1852) for FlyBase. Would you be able to help me clear up a question to help complete this curation? I'm rather confused by the rescue experiment described at the end of the first paragraph of the results section: "We were able to rescue the lethality of the heterozygous combination nabl(3)SH143/NP3537Gal4 with EP#13." As all 3 of these insertions are in or adjacent to nab, how could an animal with all three be generated? A recombination between any two of these 3 seems v.unlikely. Perhaps I am misunderstanding the description or the details of the genetics? Or maybe there is a typo? Either way, any extra details or explanation you could send would be most useful. Thanks, David Osumi-Sutherland