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An LXXLL motif in n...
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Loinder, Kristina,1963-Linköpings universitet,Cellbiologi,Hälsouniversitetet
(författare)
An LXXLL motif in nuclear receptor corepressor mediates ligand-induced repression of the thyroid stimulating hormone-β gene
- Artikel/kapitelEngelska2005
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Elsevier BV,2005
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LIBRIS-ID:oai:DiVA.org:liu-33337
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https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-33337URI
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https://doi.org/10.1016/j.jsbmb.2005.06.031DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Nuclear receptor corepressor (N-CoR) regulates gene expression through interaction with DNA-bound nuclear receptors, recruiting multicomponent repressor complexes to the sites of target genes. We recently reported the presence of an LXXLL motif in N-CoR, and showed that this motif interacts in vitro and in vivo with retinoic acid receptor α (RARα) and thyroid hormone receptor β (TRβ). Transient transfection experiments now suggest that TRβ and N-CoR act synergistically and may both be required for ligand-induced repression from the negative TR response element in the thyroid stimulating hormone-β (TSHβ) gene promoter. Mutation of the LXXLL motif in N-CoR abolished ligand-induced repression at this response element. Furthermore, in vitro binding of N-CoR to a complex between TRβ and the negative TR response element was strictly ligand-dependent. We conclude that N-CoR and TRβ cooperate in the regulation of the TSHβ gene and that the ligand-dependent repression is mediated by the LXXLL motif in N-CoR.
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Söderström, Mats,1958-Linköpings universitet,Cellbiologi,Hälsouniversitetet(Swepub:liu)matso48
(författare)
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Linköpings universitetCellbiologi
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Journal of Steroid Biochemistry and Molecular Biology: Elsevier BV97:4, s. 322-3270960-07601879-1220
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