Results

RDF/XMLNTriplesTurtleShow queryShare ▶
SubjectPredicateObject
http://purl.uniprot.org/citations/12176355http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/12176355http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/12176355http://www.w3.org/2000/01/rdf-schema#comment"

Background

Mammalian cells subjected to ultraviolet (UV) irradiation actively repress DNA replication, transcription, and mRNA translation. While the effects of UV irradiation on DNA replication and transcription have been extensively studied, the mechanism(s) responsible for translational repression are poorly understood.

Results

Here, we demonstrate that UV irradiation elicits phosphorylation of the alpha subunit of eukaryotic translation initiation factor 2 (eIF2alpha) by activating the kinase GCN2 in a manner that does not require SAPK/JNK or p38 MAP kinase. GCN2-/-cells, and cells expressing nonphosphorylatable eIF2alpha as their only source of eIF2alpha protein, fail to repress translation in response to UV irradiation.

Conclusions

These results provide a mechanism for translation inhibition by UV irradiation and identify a hitherto unrecognized role for mammalian GCN2 as a mediator of the cellular response to UV stress."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.org/dc/terms/identifier"doi:10.1016/s0960-9822(02)01037-0"xsd:string
http://purl.uniprot.org/citations/12176355http://purl.org/dc/terms/identifier"doi:10.1016/s0960-9822(02)01037-0"xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Gingras A.C."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Gingras A.C."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Raught B."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Raught B."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Deng J."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Deng J."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Sonenberg N."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Sonenberg N."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Kaufman R.J."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Kaufman R.J."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Harding H.P."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Harding H.P."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Ron D."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Ron D."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Scheuner D."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Scheuner D."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Berlanga J.J."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/author"Berlanga J.J."xsd:string
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/date"2002"xsd:gYear
http://purl.uniprot.org/citations/12176355http://purl.uniprot.org/core/date"2002"xsd:gYear
▶