+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 6mtb | |||||||||
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タイトル | Rabbit 80S ribosome with P- and Z-site tRNAs (unrotated state) | |||||||||
要素 |
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キーワード | RIBOSOME / translation | |||||||||
機能・相同性 | 機能・相同性情報 regulation of G1 to G0 transition / exit from mitosis / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / regulation of translation involved in cellular response to UV / protein-DNA complex disassembly / positive regulation of DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / optic nerve development / retinal ganglion cell axon guidance / mammalian oogenesis stage / G1 to G0 transition ...regulation of G1 to G0 transition / exit from mitosis / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / regulation of translation involved in cellular response to UV / protein-DNA complex disassembly / positive regulation of DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / optic nerve development / retinal ganglion cell axon guidance / mammalian oogenesis stage / G1 to G0 transition / activation-induced cell death of T cells / positive regulation of signal transduction by p53 class mediator / ubiquitin ligase inhibitor activity / phagocytic cup / 90S preribosome / TOR signaling / T cell proliferation involved in immune response / erythrocyte development / cellular response to actinomycin D / negative regulation of ubiquitin-dependent protein catabolic process / ribosomal small subunit export from nucleus / translation regulator activity / rough endoplasmic reticulum / gastrulation / MDM2/MDM4 family protein binding / maturation of LSU-rRNA / cytosolic ribosome / DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / rescue of stalled ribosome / ribosomal large subunit biogenesis / maturation of SSU-rRNA / positive regulation of translation / small-subunit processome / protein kinase C binding / placenta development / cellular response to gamma radiation / mRNA 5'-UTR binding / transcription coactivator binding / cytoplasmic ribonucleoprotein granule / modification-dependent protein catabolic process / G1/S transition of mitotic cell cycle / rRNA processing / protein tag activity / antimicrobial humoral immune response mediated by antimicrobial peptide / ribosomal small subunit biogenesis / rhythmic process / positive regulation of canonical Wnt signaling pathway / small ribosomal subunit rRNA binding / ribosome binding / glucose homeostasis / regulation of translation / retina development in camera-type eye / ribosomal small subunit assembly / ribosomal large subunit assembly / small ribosomal subunit / T cell differentiation in thymus / large ribosomal subunit rRNA binding / cell body / 5S rRNA binding / cytosolic small ribosomal subunit / perikaryon / cytoplasmic translation / defense response to Gram-negative bacterium / cytosolic large ribosomal subunit / killing of cells of another organism / tRNA binding / cell differentiation / postsynaptic density / protein stabilization / rRNA binding / ribosome / protein ubiquitination / structural constituent of ribosome / positive regulation of apoptotic process / ribonucleoprotein complex / positive regulation of protein phosphorylation / translation / mRNA binding / centrosome / ubiquitin protein ligase binding / dendrite / positive regulation of cell population proliferation / synapse / positive regulation of gene expression / negative regulation of apoptotic process / nucleolus / apoptotic process / protein kinase binding / perinuclear region of cytoplasm / Golgi apparatus / negative regulation of transcription by RNA polymerase II / endoplasmic reticulum / RNA binding / zinc ion binding / nucleoplasm / nucleus / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Oryctolagus cuniculus (ウサギ) unidentified (未定義) | |||||||||
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: 3.6 Å | |||||||||
データ登録者 | Brown, A. / Baird, M.R. / Yip, M.C.J. / Murray, J. / Shao, S. | |||||||||
引用 | ジャーナル: Elife / 年: 2018 タイトル: Structures of translationally inactive mammalian ribosomes. 著者: Alan Brown / Matthew R Baird / Matthew Cj Yip / Jason Murray / Sichen Shao / 要旨: The cellular levels and activities of ribosomes directly regulate gene expression during numerous physiological processes. The mechanisms that globally repress translation are incompletely understood. ...The cellular levels and activities of ribosomes directly regulate gene expression during numerous physiological processes. The mechanisms that globally repress translation are incompletely understood. Here, we use electron cryomicroscopy to analyze inactive ribosomes isolated from mammalian reticulocytes, the penultimate stage of red blood cell differentiation. We identify two types of ribosomes that are translationally repressed by protein interactions. The first comprises ribosomes sequestered with elongation factor 2 (eEF2) by SERPINE mRNA binding protein 1 (SERBP1) occupying the ribosomal mRNA entrance channel. The second type are translationally repressed by a novel ribosome-binding protein, interferon-related developmental regulator 2 (IFRD2), which spans the P and E sites and inserts a C-terminal helix into the mRNA exit channel to preclude translation. IFRD2 binds ribosomes with a tRNA occupying a noncanonical binding site, the 'Z site', on the ribosome. These structures provide functional insights into how ribosomal interactions may suppress translation to regulate gene expression. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 6mtb.cif.gz | 4.7 MB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb6mtb.ent.gz | 表示 | PDB形式 | |
PDBx/mmJSON形式 | 6mtb.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 6mtb_validation.pdf.gz | 1.5 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 6mtb_full_validation.pdf.gz | 1.9 MB | 表示 | |
XML形式データ | 6mtb_validation.xml.gz | 400.6 KB | 表示 | |
CIF形式データ | 6mtb_validation.cif.gz | 654.9 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/mt/6mtb ftp://data.pdbj.org/pub/pdb/validation_reports/mt/6mtb | HTTPS FTP |
-関連構造データ
関連構造データ | 9237MC 9234C 9235C 9236C 9239C 9240C 9241C 9242C 6mtcC 6mtdC 6mteC C: 同じ文献を引用 (文献) M: このデータのモデリングに利用したマップデータ |
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類似構造データ |
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-RNA鎖 , 7種, 7分子 1245789
#1: RNA鎖 | 分子量: 2205.379 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) unidentified (未定義) |
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#2: RNA鎖 | 分子量: 24436.551 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) |
#3: RNA鎖 | 分子量: 24102.275 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) |
#4: RNA鎖 | 分子量: 1167366.125 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) |
#5: RNA鎖 | 分子量: 38691.914 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) |
#6: RNA鎖 | 分子量: 48559.699 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) |
#50: RNA鎖 | 分子量: 548638.062 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) |
+60S ribosomal protein ... , 43種, 43分子 ABCDEFGHIJLMNOPQRSTUVWXYZabcde...
+40S ribosomal protein ... , 32種, 32分子 AABBCCDDEEFFGGHHIIJJKKLLMMNNOOPPQQRRSSTTUUVVWWXXYYZZaabbccddeeff
-タンパク質 , 1種, 1分子 gg
#83: タンパク質 | 分子量: 34669.113 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Oryctolagus cuniculus (ウサギ) / 参照: UniProt: G1SJB4 |
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-非ポリマー , 2種, 305分子
#84: 化合物 | ChemComp-MG / #85: 化合物 | ChemComp-ZN / |
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-詳細
配列の詳細 | According to the authors the sample sequences cannot include all nucleotides, as the rabbit genome ...According to the authors the sample sequences cannot include all nucleotides, as the rabbit genome is incomplete for the ribosomal RNA. |
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-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 |
-試料調製
構成要素 | 名称: Rabbit 80S ribosome with a P- and Z-site tRNA (unrotated state) タイプ: RIBOSOME / Entity ID: #1-#83 / 由来: NATURAL |
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分子量 | 実験値: NO |
由来(天然) | 生物種: Oryctolagus cuniculus (ウサギ) / 細胞内の位置: cytoplasm |
緩衝液 | pH: 7.4 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | 詳細: unspecified |
急速凍結 | 装置: FEI VITROBOT MARK II / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K |
-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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / Cs: 2.7 mm |
撮影 | 平均露光時間: 1.1 sec. / 電子線照射量: 40 e/Å2 / 検出モード: INTEGRATING フィルム・検出器のモデル: FEI FALCON II (4k x 4k) |
画像スキャン | 動画フレーム数/画像: 17 / 利用したフレーム数/画像: 1-17 |
-解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.6 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 62560 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: OTHER / 空間: REAL | ||||||||||||||||||||||||||||||||||||
原子モデル構築 | PDB-ID: 5LZV |