SGD Paper 
Pikielny CW, et al. (1983) Evidence for the biochemical role of an internal sequence in yeast nuclear mRNA introns: implications for U1 RNA and metazoan mRNA splicing. Cell 34(2):395-403
Abstract: Sequence comparison of the introns of two yeast genes (rp51A and rp51B) coding for the same ribosomal protein shows homology only in the last 50 bases of the intron. This region of the intron contains an internal conserved sequence (ICS) present near the 3' end of all sequenced yeast nuclear mRNA introns. Removal of a 29 bp sequence containing the ICS prevents splicing of an intron-containing hybrid gene. In cells containing the wild-type gene, we have detected RNA molecules that we suggest are normal splicing intermediates, generated by an endonucleolytic cut in the primary transcript at the ICS. The homology of the ICS with a sequence near the 5' end of U1 snRNA suggests a model in which an interaction in cis between the ICS and the 5' splice junction in yeast is the counterpart of the interaction in trans between U1 and 5' splice junctions in higher eucaryotes.
| Status: Published | Type: Journal Article | PubMed ID: 6616616 |
Topics addressed in this paper
Number of different genes curated to this paper: 2
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