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基本情報
登録情報 | データベース: PDB / ID: 8bgu | ||||||||||||
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タイトル | human MDM2-5S RNP | ||||||||||||
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![]() | RNA BINDING PROTEIN / 5S RNP / Mdm2 | ||||||||||||
機能・相同性 | ![]() cellular response to vitamin B1 / response to formaldehyde / response to water-immersion restraint stress / response to ether / traversing start control point of mitotic cell cycle / fibroblast activation / atrial septum development / regulation of protein catabolic process at postsynapse, modulating synaptic transmission / Trafficking of AMPA receptors / receptor serine/threonine kinase binding ...cellular response to vitamin B1 / response to formaldehyde / response to water-immersion restraint stress / response to ether / traversing start control point of mitotic cell cycle / fibroblast activation / atrial septum development / regulation of protein catabolic process at postsynapse, modulating synaptic transmission / Trafficking of AMPA receptors / receptor serine/threonine kinase binding / negative regulation of protein neddylation / peroxisome proliferator activated receptor binding / negative regulation of intrinsic apoptotic signaling pathway by p53 class mediator / positive regulation of vascular associated smooth muscle cell migration / negative regulation of protein processing / SUMO transferase activity / response to steroid hormone / NEDD8 ligase activity / response to iron ion / AKT phosphorylates targets in the cytosol / atrioventricular valve morphogenesis / endocardial cushion morphogenesis / cellular response to peptide hormone stimulus / ventricular septum development / negative regulation of ubiquitin protein ligase activity / positive regulation of muscle cell differentiation / SUMOylation of ubiquitinylation proteins / regulation of postsynaptic neurotransmitter receptor internalization / cardiac septum morphogenesis / blood vessel development / ligase activity / cellular response to alkaloid / Constitutive Signaling by AKT1 E17K in Cancer / regulation of protein catabolic process / negative regulation of signal transduction by p53 class mediator / negative regulation of DNA damage response, signal transduction by p53 class mediator / response to magnesium ion / SUMOylation of transcription factors / Peptide chain elongation / Selenocysteine synthesis / Formation of a pool of free 40S subunits / protein sumoylation / cellular response to UV-C / Eukaryotic Translation Termination / ubiquitin ligase inhibitor activity / cellular response to actinomycin D / Response of EIF2AK4 (GCN2) to amino acid deficiency / blood vessel remodeling / SRP-dependent cotranslational protein targeting to membrane / negative regulation of ubiquitin-dependent protein catabolic process / positive regulation of signal transduction by p53 class mediator / Viral mRNA Translation / cellular response to estrogen stimulus / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / protein localization to nucleus / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / positive regulation of protein binding / Major pathway of rRNA processing in the nucleolus and cytosol / protein targeting / ribonucleoprotein complex binding / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / protein autoubiquitination / positive regulation of vascular associated smooth muscle cell proliferation / NPAS4 regulates expression of target genes / negative regulation of proteasomal ubiquitin-dependent protein catabolic process / transcription repressor complex / cytosolic ribosome / positive regulation of mitotic cell cycle / regulation of heart rate / proteolysis involved in protein catabolic process / Stabilization of p53 / positive regulation of translation / regulation of signal transduction by p53 class mediator / ribosomal large subunit biogenesis / ubiquitin binding / positive regulation of protein export from nucleus / mRNA 3'-UTR binding / Regulation of RUNX3 expression and activity / response to cocaine / Oncogene Induced Senescence / DNA damage response, signal transduction by p53 class mediator / Regulation of TP53 Activity through Methylation / establishment of protein localization / cellular response to gamma radiation / Regulation of expression of SLITs and ROBOs / protein destabilization / RING-type E3 ubiquitin transferase / cellular response to growth factor stimulus / mRNA 5'-UTR binding / response to toxic substance / centriolar satellite / endocytic vesicle membrane / cellular response to hydrogen peroxide / Signaling by ALK fusions and activated point mutants / protein polyubiquitination / Regulation of TP53 Degradation / rRNA processing / ubiquitin-protein transferase activity / disordered domain specific binding 類似検索 - 分子機能 | ||||||||||||
生物種 | ![]() ![]() ![]() | ||||||||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.1 Å | ||||||||||||
![]() | Castillo, N. / Thoms, M. / Flemming, D. / Hammaren, H.M. / Buschauer, R. / Ameismeier, M. / Bassler, J. / Beck, M. / Beckmann, R. / Hurt, E. | ||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structure of nascent 5S RNPs at the crossroad between ribosome assembly and MDM2-p53 pathways. 著者: Nestor Miguel Castillo Duque de Estrada / Matthias Thoms / Dirk Flemming / Henrik M Hammaren / Robert Buschauer / Michael Ameismeier / Jochen Baßler / Martin Beck / Roland Beckmann / Ed Hurt / ![]() 要旨: The 5S ribonucleoprotein (RNP) is assembled from its three components (5S rRNA, Rpl5/uL18 and Rpl11/uL5) before being incorporated into the pre-60S subunit. However, when ribosome synthesis is ...The 5S ribonucleoprotein (RNP) is assembled from its three components (5S rRNA, Rpl5/uL18 and Rpl11/uL5) before being incorporated into the pre-60S subunit. However, when ribosome synthesis is disturbed, a free 5S RNP can enter the MDM2-p53 pathway to regulate cell cycle and apoptotic signaling. Here we reconstitute and determine the cryo-electron microscopy structure of the conserved hexameric 5S RNP with fungal or human factors. This reveals how the nascent 5S rRNA associates with the initial nuclear import complex Syo1-uL18-uL5 and, upon further recruitment of the nucleolar factors Rpf2 and Rrs1, develops into the 5S RNP precursor that can assemble into the pre-ribosome. In addition, we elucidate the structure of another 5S RNP intermediate, carrying the human ubiquitin ligase Mdm2, which unravels how this enzyme can be sequestered from its target substrate p53. Our data provide molecular insight into how the 5S RNP can mediate between ribosome biogenesis and cell proliferation. | ||||||||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 147.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 93.9 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 943.8 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 949.5 KB | 表示 | |
XML形式データ | ![]() | 24.2 KB | 表示 | |
CIF形式データ | ![]() | 35.6 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 16036MC ![]() 7ozsC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質 | 分子量: 55293.758 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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#2: RNA鎖 | 分子量: 38951.105 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
#3: タンパク質 | 分子量: 34426.789 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
#4: タンパク質 | 分子量: 20288.465 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
#5: 化合物 | ChemComp-ZN / |
研究の焦点であるリガンドがあるか | Y |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: human MDM2-5S RNP / タイプ: COMPLEX / Entity ID: #1-#4 / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.5 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | グリッドの材料: GOLD |
急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 4000 nm / 最小 デフォーカス(公称値): 400 nm |
撮影 | 電子線照射量: 38 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 4.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 219620 / 対称性のタイプ: POINT |