Sequence and genomic organization of the Drosophila proteasome PROS-Dm25 gene.

The genomic region encoding the Drosophila proteasome alpha-type subunit Dm25 has been isolated and analysed with regard to its nucleotide sequence and structure. Our data show that the Dm25 coding region is interrupted by four introns and that the 5' upstream region contains no sequence motifs common with the two previously described proteasome genes.