A set of transgenic insertion stocks derived by TE mobilization using the P-element construct P{GT1}. The P{GT1} construct is described as a dual-tagged gene trap (FBrf0132344):it carries (1) w+mGT1 mini-white marker, designed to confer a pigmented eye phenotype only if the construct is inserted within a host gene, and (2) a promoter-less Scer\GAL4 gene which is expressed if it is produced as a fusion with the mRNA produced by the host gene. The construct also carries a Tn\neoR selectable marker (FBrf0132344).
In situ hybridization indicates that there are multiple P{GT1} insertions in this line, at 18D1 and 67E; 3' RACE supports additional insertion into A2bp1 gene.
Location X:19332323-19332324 confirmed by FlyBase alignment of dbGSS accessions BH146194 and BH146193 to D. melanogaster arm Release_4 and heterochromatin Release_3.2b. Insertion orientation confirmed.