| http://purl.uniprot.org/citations/17971870 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/17971870 | http://www.w3.org/2000/01/rdf-schema#comment | "Despite substantial progress in defining central components of the circadian pacemaker, the output pathways coupling the clock to rhythmic physiological events remain elusive. We previously showed that LARK is a Drosophila RNA-binding protein which functions downstream of the clock to mediate behavioral outputs. To better understand the roles of LARK in the circadian system, we sought to identify RNA molecules associated with it, in vivo, using a three-part strategy to (1) capture RNA ligands by immunoprecipitation, (2) visualize the captured RNAs using whole-genome microarrays, and (3) identify functionally relevant targets through genetic screens. We found that LARK is associated with a large number of RNAs, in vivo, consistent with its broad expression pattern. Overexpression of LARK increases protein abundance for certain targets without affecting RNA level, suggesting a translational regulatory role for the RNA-binding protein. Phenotypic screens of target-gene mutants have identified several with rhythm-specific circadian defects, indicative of effects on clock output pathways. In particular, a hypomorphic mutation in the E74 gene, E74(BG01805), was found to confer an early-eclosion phenotype reminiscent of that displayed by a mutant with decreased LARK gene dosage. Molecular analyses demonstrate that E74A protein shows diurnal changes in abundance, similar to LARK. In addition, the E74(BG01805) allele enhances the lethal phenotype associated with a lark null mutation, whereas overexpression of LARK suppresses the early eclosion phenotype of E74(BG01805), consistent with the idea that E74 is a target, in vivo. Our results suggest a model wherein LARK mediates the transfer of temporal information from the molecular oscillator to different output pathways by interacting with distinct RNA targets."xsd:string |
| http://purl.uniprot.org/citations/17971870 | http://purl.org/dc/terms/identifier | "doi:10.1371/journal.pone.0001107"xsd:string |
| http://purl.uniprot.org/citations/17971870 | http://purl.uniprot.org/core/author | "Huang Y."xsd:string |
| http://purl.uniprot.org/citations/17971870 | http://purl.uniprot.org/core/author | "Roberts M."xsd:string |
| http://purl.uniprot.org/citations/17971870 | http://purl.uniprot.org/core/author | "Jackson F.R."xsd:string |
| http://purl.uniprot.org/citations/17971870 | http://purl.uniprot.org/core/author | "Genova G."xsd:string |
| http://purl.uniprot.org/citations/17971870 | http://purl.uniprot.org/core/date | "2007"xsd:gYear |
| http://purl.uniprot.org/citations/17971870 | http://purl.uniprot.org/core/name | "PLoS One"xsd:string |
| http://purl.uniprot.org/citations/17971870 | http://purl.uniprot.org/core/pages | "e1107"xsd:string |
| http://purl.uniprot.org/citations/17971870 | http://purl.uniprot.org/core/title | "The LARK RNA-binding protein selectively regulates the circadian eclosion rhythm by controlling E74 protein expression."xsd:string |
| http://purl.uniprot.org/citations/17971870 | http://purl.uniprot.org/core/volume | "2"xsd:string |
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