TI{PT-GFSTF.un} represents a DNA segment that is not flanked by transposable element ends, where it is known that a protein trap cassette composed of a splice acceptor site, the 'GFSTF' multiple tag cassette (EGFP-Tag:CALI(TC)-Tag:StrepII-Tag:CS(TEVp)-3xTag:FLAG) and a splice donor site has been inserted into the genome by using phiC31:int-mediated recombination to replace an attP-flanked CRIMIC RMCE cassette, but where the intron phase of the inserted protein trap cassette is unknown.