| pubmed-article:12198130 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:12198130 | lifeskim:mentions | umls-concept:C0003402 | lld:lifeskim |
| pubmed-article:12198130 | lifeskim:mentions | umls-concept:C1417701 | lld:lifeskim |
| pubmed-article:12198130 | lifeskim:mentions | umls-concept:C0031715 | lld:lifeskim |
| pubmed-article:12198130 | lifeskim:mentions | umls-concept:C0033634 | lld:lifeskim |
| pubmed-article:12198130 | lifeskim:mentions | umls-concept:C1704632 | lld:lifeskim |
| pubmed-article:12198130 | lifeskim:mentions | umls-concept:C0871261 | lld:lifeskim |
| pubmed-article:12198130 | lifeskim:mentions | umls-concept:C0040649 | lld:lifeskim |
| pubmed-article:12198130 | lifeskim:mentions | umls-concept:C2911692 | lld:lifeskim |
| pubmed-article:12198130 | lifeskim:mentions | umls-concept:C1706817 | lld:lifeskim |
| pubmed-article:12198130 | lifeskim:mentions | umls-concept:C0851285 | lld:lifeskim |
| pubmed-article:12198130 | pubmed:issue | 45 | lld:pubmed |
| pubmed-article:12198130 | pubmed:dateCreated | 2002-11-4 | lld:pubmed |
| pubmed-article:12198130 | pubmed:abstractText | Nrf2, a basic leucine zipper transcription factor, is an essential activator of the coordinated transcription of genes encoding antioxidant enzymes and phase II detoxifying enzymes through the regulatory sequence termed antioxidant response element (ARE). Recently we reported evidence for the involvement of protein kinase C (PKC) in phosphorylating Nrf2 and triggering its nuclear translocation in response to oxidative stress. We show here that phosphorylation of purified rat Nrf2 by the catalytic subunit of PKC was blocked by a synthetic peptide mimicking one of the potential PKC sites. Accordingly, Nrf2 bearing a Ser to Ala mutation at amino acid 40 (S40A) could not be phosphorylated by PKC. The S40A mutation did not affect in vitro binding of Nrf2/MafK to the ARE. However, it partially impaired Nrf2 activation of ARE-driven transcription in a reporter gene assay when Keap1 was overexpressed. In vitro transcribed/translated Keap1 could be coimmunoprecipitated with Nrf2. Phosphorylation of wild-type Nrf2 by PKC promoted its dissociation from Keap1, whereas the Nrf2-S40A mutant remained associated. These findings together with our prior studies suggest that the PKC-catalyzed phosphorylation of Nrf2 at Ser-40 is a critical signaling event leading to ARE-mediated cellular antioxidant response. | lld:pubmed |
| pubmed-article:12198130 | pubmed:language | eng | lld:pubmed |
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| pubmed-article:12198130 | pubmed:citationSubset | IM | lld:pubmed |
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| pubmed-article:12198130 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:12198130 | pubmed:month | Nov | lld:pubmed |
| pubmed-article:12198130 | pubmed:issn | 0021-9258 | lld:pubmed |
| pubmed-article:12198130 | pubmed:author | pubmed-author:HuangH-CHC | lld:pubmed |
| pubmed-article:12198130 | pubmed:author | pubmed-author:PickettCecil... | lld:pubmed |
| pubmed-article:12198130 | pubmed:author | pubmed-author:NguyenTruyenT | lld:pubmed |
| pubmed-article:12198130 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:12198130 | pubmed:day | 8 | lld:pubmed |
| pubmed-article:12198130 | pubmed:volume | 277 | lld:pubmed |
| pubmed-article:12198130 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:12198130 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:12198130 | pubmed:pagination | 42769-74 | lld:pubmed |
| pubmed-article:12198130 | pubmed:dateRevised | 2005-11-17 | lld:pubmed |
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| pubmed-article:12198130 | pubmed:year | 2002 | lld:pubmed |
| pubmed-article:12198130 | pubmed:articleTitle | Phosphorylation of Nrf2 at Ser-40 by protein kinase C regulates antioxidant response element-mediated transcription. | lld:pubmed |
| pubmed-article:12198130 | pubmed:affiliation | Schering-Plough Research Institute, Kenilworth, New Jersey 07033, USA. | lld:pubmed |
| pubmed-article:12198130 | pubmed:publicationType | Journal Article | lld:pubmed |
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