2008
DOI: 10.1016/j.gene.2008.02.003
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Quickly evolving histones, nucleosome stability and chromatin folding: All about histone H2A.Bbd

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Cited by 52 publications
(37 citation statements)
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References 25 publications
(64 reference statements)
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“…Surprisingly, the presence of H2A.Bbd in nucleosomes reduced their ability to be remodeled/mobilized by the Swi/Snf and ACF complexes in vitro. At the same time, H2A.Bbdcontaining nucleosome arrays were more active templates in p300-activated transcription (Gonzalez-Romero et al 2008). Thus, the contribution of H2A.Bbd to gene expression most likely is attributable to inherently destabilizing nucleosomes rather than making nucleosomes more sensitive to nucleosome remodeling.…”
Section: Chromatin Remodelers and Histone Variantsmentioning
confidence: 96%
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“…Surprisingly, the presence of H2A.Bbd in nucleosomes reduced their ability to be remodeled/mobilized by the Swi/Snf and ACF complexes in vitro. At the same time, H2A.Bbdcontaining nucleosome arrays were more active templates in p300-activated transcription (Gonzalez-Romero et al 2008). Thus, the contribution of H2A.Bbd to gene expression most likely is attributable to inherently destabilizing nucleosomes rather than making nucleosomes more sensitive to nucleosome remodeling.…”
Section: Chromatin Remodelers and Histone Variantsmentioning
confidence: 96%
“…More recently, its presence in nucleosomes was shown to inhibit recruitment of or remodeling by the Swi/ Snf complex (Gamble and Kraus 2010). In contrast to macroH2A, histone H2A.Bbd (Barr body deficient) appears to associate with active acetylated chromatin and is excluded from the inactive X chromosome (Gonzalez-Romero et al 2008). This short mammalian-specific histone variant forms nucleosomes that are less stable than those containing canonical H2A (Gonzalez-Romero et al 2008).…”
Section: Chromatin Remodelers and Histone Variantsmentioning
confidence: 99%
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“…H2A.B, previously known as H2A.Bbd (see [76]), is the smallest and most divergent H2A variant [77,78]. This variant was initially found to be excluded from the Barr body (the inactive X chromosome in female cells) and, thus, was named as Barr body-deficient (Bbd).…”
Section: H2ab Localization and Impact On Chromatin Structurementioning
confidence: 99%
“…Au cours de la spermatogenèse chez les mammifères, les phases postméiotiques impliquent d'abord une cessation presque totale de la transcription, suivie du remplacement des histones par des petites protéines très basiques, les protéines de transition (PT), qui sont à leur tour remplacées par les protamines (Prm) [2]. Malgré la description détaillée des étapes qui mènent au remplacement des histones et à l'invalidation des gènes codant pour les PT et les H2AL1/2 chez l'homme est l'histone connue sous le nom de H2A.bbd, qui, elle aussi, peut induire une instabilité du nucléosome [10]. Chez les mammifères, il existe également un variant de H3 -connu sous le nom de tH3 (H3.1t) -dont le profil d'expression est restreint à la lignée germinale mâle, et qui est capable d'induire une instabilité du nucléosome lorsqu'il remplace H3 [11].…”
Section: Le Remplacement Des Histones : Questions Et Hypothèsesunclassified