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Latrasse D, Jégu T, Meng PH, Mazubert C, Hudik E, Delarue M, Charon C, Crespi M, Hirt H, Raynaud C, Bergounioux C, Benhamed M. Dual function of MIPS1 as a metabolic enzyme and transcriptional regulator. Nucleic Acids Res 2013; 41:2907-17. [PMID: 23341037 PMCID: PMC3597657 DOI: 10.1093/nar/gks1458] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 12/07/2012] [Accepted: 12/14/2012] [Indexed: 12/16/2022] Open
Abstract
Because regulation of its activity is instrumental either to support cell proliferation and growth or to promote cell death, the universal myo-inositol phosphate synthase (MIPS), responsible for myo-inositol biosynthesis, is a critical enzyme of primary metabolism. Surprisingly, we found this enzyme to be imported in the nucleus and to interact with the histone methyltransferases ATXR5 and ATXR6, raising the question of whether MIPS1 has a function in transcriptional regulation. Here, we demonstrate that MIPS1 binds directly to its promoter to stimulate its own expression by locally inhibiting the spreading of ATXR5/6-dependent heterochromatin marks coming from a transposable element. Furthermore, on activation of pathogen response, MIPS1 expression is reduced epigenetically, providing evidence for a complex regulatory mechanism acting at the transcriptional level. Thus, in plants, MIPS1 appears to have evolved as a protein that connects cellular metabolism, pathogen response and chromatin remodeling.
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Affiliation(s)
- David Latrasse
- Institut de Biologie des Plantes, UMR8618 Université Paris-Sud XI, 91405 Orsay, France, Institute of Horticulture, Guizhou Academy of Agricultural Sciences, GuiYang, Guizhou Province, 550006, P.R. China, Institut des Sciences du Végétal, UPR CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France and URGV Plant Genomics, INRA/CNRS/University of Evry, 2 rue Gaston Cremieux, 91057 Evry, France
| | - Teddy Jégu
- Institut de Biologie des Plantes, UMR8618 Université Paris-Sud XI, 91405 Orsay, France, Institute of Horticulture, Guizhou Academy of Agricultural Sciences, GuiYang, Guizhou Province, 550006, P.R. China, Institut des Sciences du Végétal, UPR CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France and URGV Plant Genomics, INRA/CNRS/University of Evry, 2 rue Gaston Cremieux, 91057 Evry, France
| | - Pin-Hong Meng
- Institut de Biologie des Plantes, UMR8618 Université Paris-Sud XI, 91405 Orsay, France, Institute of Horticulture, Guizhou Academy of Agricultural Sciences, GuiYang, Guizhou Province, 550006, P.R. China, Institut des Sciences du Végétal, UPR CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France and URGV Plant Genomics, INRA/CNRS/University of Evry, 2 rue Gaston Cremieux, 91057 Evry, France
| | - Christelle Mazubert
- Institut de Biologie des Plantes, UMR8618 Université Paris-Sud XI, 91405 Orsay, France, Institute of Horticulture, Guizhou Academy of Agricultural Sciences, GuiYang, Guizhou Province, 550006, P.R. China, Institut des Sciences du Végétal, UPR CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France and URGV Plant Genomics, INRA/CNRS/University of Evry, 2 rue Gaston Cremieux, 91057 Evry, France
| | - Elodie Hudik
- Institut de Biologie des Plantes, UMR8618 Université Paris-Sud XI, 91405 Orsay, France, Institute of Horticulture, Guizhou Academy of Agricultural Sciences, GuiYang, Guizhou Province, 550006, P.R. China, Institut des Sciences du Végétal, UPR CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France and URGV Plant Genomics, INRA/CNRS/University of Evry, 2 rue Gaston Cremieux, 91057 Evry, France
| | - Marianne Delarue
- Institut de Biologie des Plantes, UMR8618 Université Paris-Sud XI, 91405 Orsay, France, Institute of Horticulture, Guizhou Academy of Agricultural Sciences, GuiYang, Guizhou Province, 550006, P.R. China, Institut des Sciences du Végétal, UPR CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France and URGV Plant Genomics, INRA/CNRS/University of Evry, 2 rue Gaston Cremieux, 91057 Evry, France
| | - Céline Charon
- Institut de Biologie des Plantes, UMR8618 Université Paris-Sud XI, 91405 Orsay, France, Institute of Horticulture, Guizhou Academy of Agricultural Sciences, GuiYang, Guizhou Province, 550006, P.R. China, Institut des Sciences du Végétal, UPR CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France and URGV Plant Genomics, INRA/CNRS/University of Evry, 2 rue Gaston Cremieux, 91057 Evry, France
| | - Martin Crespi
- Institut de Biologie des Plantes, UMR8618 Université Paris-Sud XI, 91405 Orsay, France, Institute of Horticulture, Guizhou Academy of Agricultural Sciences, GuiYang, Guizhou Province, 550006, P.R. China, Institut des Sciences du Végétal, UPR CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France and URGV Plant Genomics, INRA/CNRS/University of Evry, 2 rue Gaston Cremieux, 91057 Evry, France
| | - Heribert Hirt
- Institut de Biologie des Plantes, UMR8618 Université Paris-Sud XI, 91405 Orsay, France, Institute of Horticulture, Guizhou Academy of Agricultural Sciences, GuiYang, Guizhou Province, 550006, P.R. China, Institut des Sciences du Végétal, UPR CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France and URGV Plant Genomics, INRA/CNRS/University of Evry, 2 rue Gaston Cremieux, 91057 Evry, France
| | - Cécile Raynaud
- Institut de Biologie des Plantes, UMR8618 Université Paris-Sud XI, 91405 Orsay, France, Institute of Horticulture, Guizhou Academy of Agricultural Sciences, GuiYang, Guizhou Province, 550006, P.R. China, Institut des Sciences du Végétal, UPR CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France and URGV Plant Genomics, INRA/CNRS/University of Evry, 2 rue Gaston Cremieux, 91057 Evry, France
| | - Catherine Bergounioux
- Institut de Biologie des Plantes, UMR8618 Université Paris-Sud XI, 91405 Orsay, France, Institute of Horticulture, Guizhou Academy of Agricultural Sciences, GuiYang, Guizhou Province, 550006, P.R. China, Institut des Sciences du Végétal, UPR CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France and URGV Plant Genomics, INRA/CNRS/University of Evry, 2 rue Gaston Cremieux, 91057 Evry, France
| | - Moussa Benhamed
- Institut de Biologie des Plantes, UMR8618 Université Paris-Sud XI, 91405 Orsay, France, Institute of Horticulture, Guizhou Academy of Agricultural Sciences, GuiYang, Guizhou Province, 550006, P.R. China, Institut des Sciences du Végétal, UPR CNRS, 1 Avenue de la Terrasse, 91198 Gif-sur-Yvette, France and URGV Plant Genomics, INRA/CNRS/University of Evry, 2 rue Gaston Cremieux, 91057 Evry, France
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