18.327
In embryos, staining observed in epidermal cells immediately anterior and posterior to segment boundaries, the visceral mesoderm, the clypeolabrum, the proctodeum, and some cells of the CNS. Essentially identical to antibody staining pattern for Fas3.
The insertion site maps about 60bp upstream of the putative Fas3 transcription start. The P insertion is in a positive orientation with respect to Fas3 gene transcription.