faf sequences up to amino acid 392 fused to lacZ sequences, with an in-frame Tag:NLS(SV40-largeT) nuclear localization signal inserted 54 amino acids downstream of the ATG.
In eye-antennal disc, expression observed throughout the disc, except in the immediate region of the morphogenetic furrow; within the posterior region of the eye disc (behind the morphogenetic furrow), expressed in all photoreceptor cells and cone cells.