RDF/XMLNTriplesTurtleShow queryShare
SubjectPredicateObject
http://purl.uniprot.org/citations/17524417http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/17524417http://www.w3.org/2000/01/rdf-schema#comment"CENP-A is a histone variant that replaces conventional H3 in nucleosomes of functional centromeres. We report here, from reconstitutions of CENP-A- and H3-containing nucleosomes on linear DNA fragments and the comparison of their electrophoretic mobility, that CENP-A induces some positioning of its own and some unwrapping at the entry-exit relative to canonical nucleosomes on both 5 S DNA and the alpha-satellite sequence on which it is normally loaded. This steady-state unwrapping was quantified to 7(+/-2) bp by nucleosome reconstitutions on a series of DNA minicircles, followed by their relaxation with topoisomerase I. The unwrapping was found to ease nucleosome invasion by exonuclease III, to hinder the binding of a linker histone, and to promote the release of an H2A-H2B dimer by nucleosome assembly protein 1 (NAP-1). The (CENP-A-H4)2 tetramer was also more readily destabilized with heparin than the (H3-H4)2 tetramer, suggesting that CENP-A has evolved to confer its nucleosome a specific ability to disassemble. This dual relative instability is proposed to facilitate the progressive clearance of CENP-A nucleosomes that assemble promiscuously in euchromatin, especially as is seen following CENP-A transient over-expression."xsd:string
http://purl.uniprot.org/citations/17524417http://purl.org/dc/terms/identifier"doi:10.1016/j.jmb.2007.04.064"xsd:string
http://purl.uniprot.org/citations/17524417http://purl.uniprot.org/core/author"Black B.E."xsd:string
http://purl.uniprot.org/citations/17524417http://purl.uniprot.org/core/author"Cleveland D.W."xsd:string
http://purl.uniprot.org/citations/17524417http://purl.uniprot.org/core/author"Filipski J."xsd:string
http://purl.uniprot.org/citations/17524417http://purl.uniprot.org/core/author"Conde e Silva N."xsd:string
http://purl.uniprot.org/citations/17524417http://purl.uniprot.org/core/author"Prunell A."xsd:string
http://purl.uniprot.org/citations/17524417http://purl.uniprot.org/core/author"Sivolob A."xsd:string
http://purl.uniprot.org/citations/17524417http://purl.uniprot.org/core/date"2007"xsd:gYear
http://purl.uniprot.org/citations/17524417http://purl.uniprot.org/core/name"J Mol Biol"xsd:string
http://purl.uniprot.org/citations/17524417http://purl.uniprot.org/core/pages"555-573"xsd:string
http://purl.uniprot.org/citations/17524417http://purl.uniprot.org/core/title"CENP-A-containing nucleosomes: easier disassembly versus exclusive centromeric localization."xsd:string
http://purl.uniprot.org/citations/17524417http://purl.uniprot.org/core/volume"370"xsd:string
http://purl.uniprot.org/citations/17524417http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/17524417
http://purl.uniprot.org/citations/17524417http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/17524417
http://purl.uniprot.org/uniprot/#_A5HUM4-mappedCitation-17524417http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/17524417
http://purl.uniprot.org/uniprot/#_Q6XXM1-mappedCitation-17524417http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/17524417
http://purl.uniprot.org/uniprot/A5HUM4http://purl.uniprot.org/core/mappedCitationhttp://purl.uniprot.org/citations/17524417
http://purl.uniprot.org/uniprot/Q6XXM1http://purl.uniprot.org/core/mappedCitationhttp://purl.uniprot.org/citations/17524417