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http://purl.uniprot.org/citations/21673315http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/21673315http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/21673315http://www.w3.org/2000/01/rdf-schema#comment"Subcellular localization of the actin-binding transcriptional coactivator MRTF-A is controlled by its interaction with monomeric actin (G-actin). Signal-induced decreases in G-actin concentration reduce MRTF-A nuclear export, leading to its nuclear accumulation, whereas artificial increases in G-actin concentration in resting cells block MRTF-A nuclear import, retaining it in the cytoplasm. This regulation is dependent on three actin-binding RPEL motifs in the regulatory domain of MRTF-A. We describe the structures of pentavalent and trivalent G-actin•RPEL domain complexes. In the pentavalent complex, each RPEL motif and the two intervening spacer sequences bound an actin monomer, forming a compact assembly. In contrast, the trivalent complex lacked the C-terminal spacer- and RPEL-actins, both of which bound only weakly in the pentavalent complex. Cytoplasmic localization of MRTF-A in unstimulated fibroblasts also required binding of G-actin to the spacer sequences. The bipartite MRTF-A nuclear localization sequence was buried in the pentameric assembly, explaining how increases in G-actin concentration prevent nuclear import of MRTF-A. Analyses of the pentavalent and trivalent complexes show how actin loads onto the RPEL domain and reveal a molecular mechanism by which actin can control the activity of one of its binding partners."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.org/dc/terms/identifier"doi:10.1126/scisignal.2001750"xsd:string
http://purl.uniprot.org/citations/21673315http://purl.org/dc/terms/identifier"doi:10.1126/scisignal.2001750"xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/author"McDonald N.Q."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/author"McDonald N.Q."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/author"Mouilleron S."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/author"Mouilleron S."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/author"Treisman R."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/author"Treisman R."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/author"Guettler S."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/author"Guettler S."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/author"Langer C.A."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/author"Langer C.A."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/date"2011"xsd:gYear
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/date"2011"xsd:gYear
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/name"Sci. Signal."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/name"Sci. Signal."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/pages"ra40"xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/pages"ra40"xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/title"Structure of a pentavalent G-actin*MRTF-A complex reveals how G-actin controls nucleocytoplasmic shuttling of a transcriptional coactivator."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/title"Structure of a pentavalent G-actin*MRTF-A complex reveals how G-actin controls nucleocytoplasmic shuttling of a transcriptional coactivator."xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/volume"4"xsd:string
http://purl.uniprot.org/citations/21673315http://purl.uniprot.org/core/volume"4"xsd:string