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- Cavel, Emilie,1983-Laboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique/Institut de Recherche pour le Développement/Université de Perpignan, Perpignan, France (author)
A plant-specific transcription factor IIB-related protein, pBRP2, is involved in endosperm growth control
- Article/chapterEnglish2011
Publisher, publication year, extent ...
- 2011-02-24
- Public Library Science,2011
- electronicrdacarrier
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- LIBRIS-ID:oai:DiVA.org:umu-43696
- https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-43696URI
- https://doi.org/10.1371/journal.pone.0017216DOI
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- Language:English
- Summary in:English
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- General transcription factor IIB (TFIIB) and TFIIB-related factor (BRF), are conserved RNA polymerase II/III (RNAPII/III) selectivity factors that are involved in polymerase recruitment and transcription initiation in eukaryotes. Recent findings have shown that plants have evolved a third type of B-factor, plant-specific TFIIB-related protein 1 (pBRP1), which seems to be involved in RNAPI transcription. Here, we extend the repertoire of B-factors in plants by reporting the characterization of a novel TFIIB-related protein, plant-specific TFIIB-related protein 2 (pBRP2), which is found to date only in the Brassicacea family. Unlike other B-factors that are ubiquitously expressed, PBRP2 expression is restricted to reproductive organs and seeds as shown by RT-PCR, immunofluorescence labelling and GUS staining experiments. Interestingly, pbrp2 loss-of-function specifically affects the development of the syncytial endosperm, with both parental contributions required for wild-type development. pBRP2, is the first B-factor to exhibit cell-specific expression and regulation in eukaryotes, and might play a role in enforcing bi-parental reproduction in angiosperms.
Subject headings and genre
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- Pillot, MarionInstitut de Recherche pour le Développement, Montpellier, France (author)
- Pontier, DominiqueLaboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique/Institut de Recherche pour le Développement/Université de Perpignan, Perpignan, France (author)
- Lahmy, SylvieLaboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique/Institut de Recherche pour le Développement/Université de Perpignan, Perpignan, France (author)
- Bies-Etheve, NatachaLaboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique/Institut de Recherche pour le Développement/Université de Perpignan, Perpignan, France (author)
- Vega, DanielleLaboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique/Institut de Recherche pour le Développement/Université de Perpignan, Perpignan, France (author)
- Grimanelli, DanielInstitut de Recherche pour le Développement, Montpellier, France (author)
- Lagrange, ThierryLaboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique/Institut de Recherche pour le Développement/Université de Perpignan, Perpignan, France (author)
- Laboratoire Génome et Développement des Plantes, Centre National de la Recherche Scientifique/Institut de Recherche pour le Développement/Université de Perpignan, Perpignan, FranceInstitut de Recherche pour le Développement, Montpellier, France (creator_code:org_t)
Related titles
- In:PLOS ONE: Public Library Science6:21932-6203
Internet link
- https://doi.org/10.1371/journal.pone.0017216Fulltext
- https://umu.diva-portal.org/smash/get/diva2:415252/FULLTEXT01.pdffulltext:print
- https://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0017216&type=printable
- https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-43696
- https://doi.org/10.1371/journal.pone.0017216
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