Genomic fragment including the Xrp1 gene, from BAC clone CH321-48F09. A sfGFP-Tag:FLAG-Tag:CS(PSP)-Tag:CS(TEVp)-Tag:BLRP tag cassette has been introduced at the C-terminal end of the Xrp1 gene, such that protein isoforms B, A, C, D, E, F and G are tagged.