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万見- EMDB-28630: CX3CR1 nucleosome and PU.1 complex containing disulfide bond mutations -
+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-28630 | |||||||||
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タイトル | CX3CR1 nucleosome and PU.1 complex containing disulfide bond mutations | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | nucleosome (ヌクレオソーム) / transcription factor (転写因子) / transcription (転写 (生物学)) / chromatin binding protein-DNA complex / TRANSCRIPTION-DNA complex | |||||||||
機能・相同性 | 機能・相同性情報 positive regulation of myeloid dendritic cell chemotaxis / anatomical structure regression / follicular B cell differentiation / positive regulation of antifungal innate immune response / regulation of myeloid progenitor cell differentiation / pro-T cell differentiation / negative regulation of neutrophil degranulation / germinal center B cell differentiation / positive regulation of microglial cell mediated cytotoxicity / myeloid leukocyte differentiation ...positive regulation of myeloid dendritic cell chemotaxis / anatomical structure regression / follicular B cell differentiation / positive regulation of antifungal innate immune response / regulation of myeloid progenitor cell differentiation / pro-T cell differentiation / negative regulation of neutrophil degranulation / germinal center B cell differentiation / positive regulation of microglial cell mediated cytotoxicity / myeloid leukocyte differentiation / granulocyte differentiation / TRAIL-activated apoptotic signaling pathway / apoptotic process involved in blood vessel morphogenesis / lymphocyte differentiation / endothelial to hematopoietic transition / negative regulation of adipose tissue development / pericyte cell differentiation / immature B cell differentiation / negative regulation of MHC class II biosynthetic process / lymphoid progenitor cell differentiation / myeloid dendritic cell differentiation / defense response to tumor cell / vasculature development / regulation of DNA-binding transcription factor activity / negative regulation of non-canonical NF-kappaB signal transduction / oncogene-induced cell senescence / negative regulation of protein localization to chromatin / positive regulation of p38MAPK cascade / positive regulation of B cell differentiation / DNA-binding transcription repressor activity / STAT family protein binding / DNA-binding transcription activator activity / interleukin-6-mediated signaling pathway / NFAT protein binding / somatic stem cell population maintenance / macrophage differentiation / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / cis-regulatory region sequence-specific DNA binding / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / epigenetic regulation of gene expression / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Deposition of new CENPA-containing nucleosomes at the centromere / lipopolysaccharide-mediated signaling pathway / transcription initiation-coupled chromatin remodeling / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Inhibition of DNA recombination at telomere / Meiotic synapsis / telomere organization / RNA Polymerase I Promoter Opening / Interleukin-7 signaling / Assembly of the ORC complex at the origin of replication / SUMOylation of chromatin organization proteins / DNAメチル化 / transforming growth factor beta receptor signaling pathway / 赤血球形成 / protein sequestering activity / Condensation of Prophase Chromosomes / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / Chromatin modifications during the maternal to zygotic transition (MZT) / SIRT1 negatively regulates rRNA expression / HCMV Late Events / innate immune response in mucosa / PRC2 methylates histones and DNA / Defective pyroptosis / HDACs deacetylate histones / RNA Polymerase I Promoter Escape / Nonhomologous End-Joining (NHEJ) / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / NoRC negatively regulates rRNA expression / G2/M DNA damage checkpoint / HDMs demethylate histones / regulation of erythrocyte differentiation / B-WICH complex positively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / Metalloprotease DUBs / PKMTs methylate histone lysines / RMTs methylate histone arginines / 遺伝的組換え / Pre-NOTCH Transcription and Translation / DNA-binding transcription repressor activity, RNA polymerase II-specific / nucleosome assembly / positive regulation of miRNA transcription / Activation of anterior HOX genes in hindbrain development during early embryogenesis / HCMV Early Events / Transcriptional regulation of granulopoiesis / histone deacetylase binding / structural constituent of chromatin / UCH proteinases / ヌクレオソーム / antimicrobial humoral immune response mediated by antimicrobial peptide / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) / Mus musculus (ハツカネズミ) / Escherichia coli (大腸菌) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.64 Å | |||||||||
データ登録者 | Lian T / Guan R / Bai Y | |||||||||
資金援助 | 米国, 1件
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引用 | ジャーナル: Nat Struct Mol Biol / 年: 2024 タイトル: Structural mechanism of synergistic targeting of the CX3CR1 nucleosome by PU.1 and C/EBPα. 著者: Tengfei Lian / Ruifang Guan / Bing-Rui Zhou / Yawen Bai / 要旨: Pioneer transcription factors are vital for cell fate changes. PU.1 and C/EBPα work together to regulate hematopoietic stem cell differentiation. However, how they recognize in vivo nucleosomal DNA ...Pioneer transcription factors are vital for cell fate changes. PU.1 and C/EBPα work together to regulate hematopoietic stem cell differentiation. However, how they recognize in vivo nucleosomal DNA targets remains elusive. Here we report the structures of the nucleosome containing the mouse genomic CX3CR1 enhancer DNA and its complexes with PU.1 alone and with both PU.1 and the C/EBPα DNA binding domain. Our structures reveal that PU.1 binds the DNA motif at the exit linker, shifting 17 bp of DNA into the core region through interactions with H2A, unwrapping ~20 bp of nucleosomal DNA. C/EBPα binding, aided by PU.1's repositioning, unwraps ~25 bp of entry DNA. The PU.1 Q218H mutation, linked to acute myeloid leukemia, disrupts PU.1-H2A interactions. PU.1 and C/EBPα jointly displace linker histone H1 and open the H1-condensed nucleosome array. Our study unveils how two pioneer factors can work cooperatively to open closed chromatin by altering DNA positioning in the nucleosome. | |||||||||
履歴 |
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-構造の表示
添付画像 |
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-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_28630.map.gz | 49.8 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-28630-v30.xml emd-28630.xml | 22.7 KB 22.7 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_28630.png | 84.6 KB | ||
Filedesc metadata | emd-28630.cif.gz | 6.7 KB | ||
その他 | emd_28630_half_map_1.map.gz emd_28630_half_map_2.map.gz | 49 MB 49 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-28630 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-28630 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_28630.map.gz / 形式: CCP4 / 大きさ: 52.7 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||
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ボクセルのサイズ | X=Y=Z: 1.056 Å | ||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #2
ファイル | emd_28630_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_28630_half_map_2.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
+全体 : nucleosome PU.1 mutant complex
+超分子 #1: nucleosome PU.1 mutant complex
+分子 #1: DNA (167-MER)
+分子 #2: DNA (167-MER)
+分子 #3: Histone H3.1
+分子 #4: Histone H4
+分子 #5: Histone H2A type 2-C
+分子 #6: Histone H2B type 2-E
+分子 #7: Histone H2A type 2-C
+分子 #8: Single-chain variable fragment
+分子 #9: Transcription factor PU.1
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 7.3 |
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凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: SPOT SCAN / 撮影モード: BRIGHT FIELDBright-field microscopy / 最大 デフォーカス(公称値): 2.0 µm / 最小 デフォーカス(公称値): 1.0 µm |
撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 平均電子線量: 53.8 e/Å2 |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
初期モデル | モデルのタイプ: NONE |
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初期 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 2.64 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 127327 |