Intervening sequences in a Dictyostelium gene that encodes a low abundance class mRNA

Abstract
Using S1 nuclease protection experiments and DNA sequencing, we have identified two intervening sequences (introns) within a Dictyostelium gene that codes for a low abundance class mRNA. The two introns are located within the protein coding region of this gene. Both are small ( ∼100bp) and extremely (∼95%) A + T rich. The splice junction sequences are similar to the splice sites in other eukaryotes. Finally, we have shown that these introns are transcribed as part of a higher molecular weight nuclear precursor.