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Protein 6b is found in nuclei and binds to several plant nuclear proteins. Here, we report that 6b binds specifically to histone H3 in vitro but not to other core histones. Analysis by bimolecular fluorescence complementation revealed an interaction in vivo between 6b and histone H3. We recovered 6b from a chromatin fraction from 6b-expressing plant cells. A supercoiling assay and digestion with micrococcal nuclease indicated that 6b acts as a histone chaperone with the ability to mediate formation of nucleosomes in vitro. Mutant 6b, lacking the C-terminal region that is required for cell division\u2013stimulating activity and interaction with histone H3, was deficient in histone chaperone activity. Our results suggest a relationship between alterations in nucleosome structure and the expression of growth-regulating genes on the one hand and the induction of aberrant cell proliferation on the other.<\/jats:p>","DOI":"10.1105\/tpc.106.049551","type":"journal-article","created":{"date-parts":[[2007,9,22]],"date-time":"2007-09-22T00:54:44Z","timestamp":1190422484000},"page":"2855-2865","source":"Crossref","is-referenced-by-count":38,"title":["An Oncoprotein from the Plant Pathogen<i>Agrobacterium<\/i>Has Histone Chaperone\u2013Like Activity"],"prefix":"10.1093","volume":"19","author":[{"given":"Shinji","family":"Terakura","sequence":"first","affiliation":[{"name":"Division of Biological Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshihisa","family":"Ueno","sequence":"additional","affiliation":[{"name":"Division of Biological Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hideaki","family":"Tagami","sequence":"additional","affiliation":[{"name":"Graduate School of Natural Sciences, Nagoya City University, Mizuho, Nagoya, Aichi 467-8501, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Saeko","family":"Kitakura","sequence":"additional","affiliation":[{"name":"College of Bioscience and Biotechnology, Chubu University, Kasugai, Aichi 487-8501, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chiyoko","family":"Machida","sequence":"additional","affiliation":[{"name":"College of Bioscience and Biotechnology, Chubu University, Kasugai, Aichi 487-8501, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroetsu","family":"Wabiko","sequence":"additional","affiliation":[{"name":"Faculty of Bioresource Sciences, Akita Prefectural University, Nakano-Aza Kaidobata, Shimoshinjo, Akita 010-0195, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroji","family":"Aiba","sequence":"additional","affiliation":[{"name":"Division of Biological Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Le\u0301on","family":"Otten","sequence":"additional","affiliation":[{"name":"Institut de Biologie Mole\u0301culaire des Plantes, Centre National de la Recherche Scientifique, Unite\u0301 Propre de Recherche 2357, 67084 Strasbourg, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hironaka","family":"Tsukagoshi","sequence":"additional","affiliation":[{"name":"Division of Biological Science, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenzo","family":"Nakamura","sequence":"additional","affiliation":[{"name":"Division of Biological Science, Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8601, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasunori","family":"Machida","sequence":"additional","affiliation":[{"name":"Division of Biological Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2007,9,21]]},"reference":[{"key":"2021040620132968500_b1","doi-asserted-by":"crossref","first-page":"1052","DOI":"10.1126\/science.1115983","volume":"309","year":"2005","journal-title":"Science"},{"key":"2021040620132968500_b2","doi-asserted-by":"crossref","first-page":"657","DOI":"10.1016\/j.molcel.2004.05.016","volume":"14","year":"2004","journal-title":"Mol. 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