The 'Associated File' for this personal communication contains information about CRIMIC insertion lines described in FBrf0238661 for which there was no record in FlyBase at the time of submission of the data. The file contains data primarily concerning the genomic location of the inserted DNA, the length of any associated small deletion of genomic DNA and the identities of any gene(s) in which the Trojan-GAL4 cassette is inserted. The gene associations are based on the FlyBase gene annotations at the time of submission of the data. The column "Trap? Y/N" for each gene indicates whether the gene trap cassette is predicted to result in the truncation of the trapped gene and expression of GAL4. Note that this is a prediction and does not necessarily indicate whether or not there is experimental evidence. GAL4 is predicted to be expressed only in cells expressing a transcript isoform in which the insertion acts as a gene trap (i.e. is inserted in an intron between two protein coding exons). For genes with multiple annotated transcript isoforms, a "Y" (Yes) in the 'Traps_all_Gene_transcripts? _Y_N' column indicates that the insertion is predicted to trap all isoforms of the gene.