Fig. 1.

The structure of the hip gene. (Upper) The genomic region containing the hip/CG8044 gene and the flanking genes (CG8209 and CG8042) on chromosome 3L are shown. Transcription start site (arrowhead and +1), the insertion site of P(EPgy2)CG8044^EY01733, position of splice sites, and the deletion in hip⁴¹ are indicated. (Lower) Predicted hip transcripts. The transcript hip-639b (hip-a) contains two exons and encodes a 106-aa Hip isoform A (CG8044-PA) that uses stop codon STOP2. The single exon transcript hip-714b (hip-b) encodes a 100-aa Hip isoform B (CG8044-PB) that uses stop codon STOP1. The primers used in the RT-PCR analysis are indicated.