Akihisa Osakabe
@osakabe_a
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Tenure track associate professor at Chiba Univ./plant epigenetics/ https://t.co/jBwkwcILhX
Joined April 2019
Our new cryo-EM paper on the UHRF1–nucleosome complex is out! We reveal a previously unrecognized TTD–acidic patch interaction that enhances UHRF1-mediated ubiquitination of histone H3. Many thanks to all collaborators! https://t.co/a32sLagAHu
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How are the intervals of periodic pattern formation regulated during plant morphogenesis? Our latest study now published in @NatureComms proposes that the mutual inhibition between EPFL2 and auxin modulates the periodicity🌿 https://t.co/0mUhXBQdaJ
nature.com
Nature Communications - Plant development is characterized by periodic morphogenesis, yet regulatory mechanisms underlying the periodicity remain unknown. Tameshige et al. reveal that bistable...
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Our first cell-free DNA paper is now published! Thank you to all co-authors and collaborators for their contributions.
Officially published in Communications Biology! In this study, we developed an open chromatin-guided, interpretable machine learning pipeline to uncover cancer-specific nucleosomal fragment patterns directly from cell-free DNA. https://t.co/04Svh6UfaI
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爲重くんと土田くんが共筆頭著者の論文がNature Communications に出版されました🎊 最初の投稿(別の雑誌)からトータル一年半かかりましたが、リバイスでデータもだいぶ追加して最終的に良い論文に仕上がって良かったです!! https://t.co/0mUhXBQL0h
nature.com
Nature Communications - Plant development is characterized by periodic morphogenesis, yet regulatory mechanisms underlying the periodicity remain unknown. Tameshige et al. reveal that bistable...
#植物再生学研究室 の卒業生(修士)が共筆頭著者をつとめる論文が、もうすぐ出版される予定です。学生さんたちが日々頑張って取り組んだ研究の成果が人類の知の体系に永遠に刻まれることに感動します。公開が待ち遠しいです!! #池内研 #NAISTバイオ
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The Piwi-piRNA complex initiates transposon silencing via transcription termination factors PNUTS and Senataxin https://t.co/twtvb5C01g
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New OA Article: "Major alleles of CDCA7 shape CG methylation in Arabidopsis thaliana" https://t.co/UUP5u6ecGh GWAS identifies CDCA7 as a regulator of DNA methylation in Arabidopsis thaliana . CDCA7 binds the chromatin remodeller DDM1 and modulates the control of CG methylation.
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How is epigenetic information inherited? We found that CDCA7 proteins are critical players in the inheritance of DNA methylation at CG sites in plants, and this is true both in the lab and in the wild. How does this work? 🧵👇
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🐸 Ever wonder how frogs help solve cancer mysteries? At @fredhutch, Dr. Yasuhiro Arimura (@ArmrYshr) is using frog-egg extracts to understand chromatin like never before, revealing structures that could unlock new insights into cancer and cell division: https://t.co/yC0MTkfA0h
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【ニュース】RNAの“書き換え”がDNAを守る!~エピトランスクリプトーム解析が示すゲノム防御の新たな仕組み -千葉大学- https://t.co/mm8uYhG5O6
chiba-u.ac.jp
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SHH1 cooperates with the DNA methylation reader MBD7 to suppress transcriptional silencing of promoter-methylated genes in Arabidopsis #research #PlantCommunications
https://t.co/B5wxRFS2Rp
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当研究室の菊地さんの活躍が紹介されました。 おめでとう! https://t.co/SMIV3uEO5c
yokohama-cu.ac.jp
生命医科学研究科 博士後期課程2年(構造生物学研究室)の菊地 杏美香さんらの研究グループは、植物のDNAメチル化酵素MET1の構造の可視化に成功しました。
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Our paper is finally out @NaturePlants. MAIL proteins antagonize Polycomb-mediated silencing.
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植物の維持メチル化酵素MET1のクライオ電顕構造を解きました! 動物のDNMT1とは予想外に異なる制御機構があり、構造予測とも違う部分がありました。 実験で構造を見る意義を示せたと思います。 まだ謎が多い植物の維持メチル化の分子機構解明に向けた第一歩です🌱✨ https://t.co/qlgeeNe6ZK
yokohama-cu.ac.jp
横浜市立大学は、植物のDNAメチル化を維持するDNA維持メチル化酵素MET1の構造を、クライオ電子顕微鏡単粒子解析法で明らかにしました。
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本領域も協賛させていただきます! 当日は藤計画班員も発表者で参加します。 よろしくお願いします!
本領域が協賛する国際シンポジウムが東大・定量研で開催されます。奮ってご参加ください! The 37th Tokyo RNA Club Genome and Epigenome Dynamics 日時:2025年12月6日 13:00-17:55 + 交流会 事前参加登録: https://t.co/8UoV6KGQKK
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有田・西山班の研究成果がNature communications誌に! 有田先生、菊地さんおめでとうございます! Kikuchi A. et al. Cryo-EM reveals evolutionarily conserved and distinct structural features of plant CG maintenance methyltransferase MET1. Nat Commun 16, 8524 (2025)
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I’m happy to share our new work: the structural basis for the regulation of the plant DNA methyltransferase MET1 revealed by cryo-EM. Many thanks to our collaborators! https://t.co/USUdQemf6v
nature.com
Nature Communications - DNA methyltransferase MET1 maintains CG methylation in plants. Kikuchi determined the cryo-EM structure of Arabidopsis MET1, revealing autoinhibition and activation...
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鵜木さんに誘っていただき、遺伝学会のGenes & Genetic SystemsにDNA維持メチル化の分子機構についてのレビューを書かせていただきました!いつもお世話になっているLeonhardt labのChrisとの共著です。 Molecular mechanisms of maintenance DNA methylation
jstage.jst.go.jp
Maintenance DNA methylation is essential for the stable inheritance of epigenetic information in vertebrates. While DNMT1 has long been recognized as …
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