| http://purl.uniprot.org/citations/12861004 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/12861004 | http://www.w3.org/2000/01/rdf-schema#comment | "The Drosophila melanogaster sex determination factor Tra2 positively regulates the splicing of both doublesex (dsx) and fruitless (fru) pre-mRNAs but negatively affects the splicing of the M1 intron in tra2 pre-mRNA. Retention of the M1 intron is known to be part of a negative-feedback mechanism wherein the Tra2 protein limits its own synthesis, but the mechanism responsible for accumulation of M1-containing RNA is unknown. Here we show that the recombinant Tra2 protein specifically represses M1 splicing in Drosophila nuclear extracts. We find that the Tra2 protein binds directly to several sites in and near the M1 intron and that, when Tra2 binding is competed with other RNAs, the splicing of M1 is restored. Mapping the RNA sequences functionally required for M1 repression identified both a 34-nucleotide (nt) A/C-rich sequence immediately upstream of the M1 5' splice site and a region within the intron itself. The AC-rich sequence is largely composed of a repeated 4-nt sequence that also forms a subrepeat within the repeated 13-nt splicing enhancer elements of fru and dsx RNAs. Although required for repression, the element also enhances M1 splicing in the absence of Tra2. We propose that Tra2 represses M1 splicing by interacting with multiple sequences in the pre-mRNA and interfering with enhancer function."xsd:string |
| http://purl.uniprot.org/citations/12861004 | http://purl.org/dc/terms/identifier | "doi:10.1128/mcb.23.15.5174-5185.2003"xsd:string |
| http://purl.uniprot.org/citations/12861004 | http://purl.uniprot.org/core/author | "Qi J."xsd:string |
| http://purl.uniprot.org/citations/12861004 | http://purl.uniprot.org/core/author | "Mattox W."xsd:string |
| http://purl.uniprot.org/citations/12861004 | http://purl.uniprot.org/core/author | "Chandler D.S."xsd:string |
| http://purl.uniprot.org/citations/12861004 | http://purl.uniprot.org/core/date | "2003"xsd:gYear |
| http://purl.uniprot.org/citations/12861004 | http://purl.uniprot.org/core/name | "Mol Cell Biol"xsd:string |
| http://purl.uniprot.org/citations/12861004 | http://purl.uniprot.org/core/pages | "5174-5185"xsd:string |
| http://purl.uniprot.org/citations/12861004 | http://purl.uniprot.org/core/title | "Direct repression of splicing by transformer-2."xsd:string |
| http://purl.uniprot.org/citations/12861004 | http://purl.uniprot.org/core/volume | "23"xsd:string |
| http://purl.uniprot.org/citations/12861004 | http://www.w3.org/2004/02/skos/core#exactMatch | http://purl.uniprot.org/pubmed/12861004 |
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| http://purl.uniprot.org/uniprot/#_A0A0B4KGR7-mappedCitation-12861004 | http://www.w3.org/1999/02/22-rdf-syntax-ns#object | http://purl.uniprot.org/citations/12861004 |
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