Genomic fragment including the Blimp-1 gene, from BAC clone CH321-43O02. A sfGFP-Tag:FLAG-Tag:CS(PSP)-Tag:CS(TEVp)-Tag:BLRP tag cassette has been introduced at the C-terminal end of the Blimp-1 gene, such that protein isoforms A, B, C, D, E and F are tagged.