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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 4ce4 | ||||||||||||
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タイトル | 39S large subunit of the porcine mitochondrial ribosome | ||||||||||||
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![]() | RIBOSOME / MAMMALIAN MITOCHONDRIAL RIBOSOME / 39S LARGE RIBOSOMAL SUBUNIT / TRANSLATION / RIBOSOMAL PROTEINS / RRNA / POLYPEPTIDE EXIT SITE / MEMBRANE ASSOCIATION | ||||||||||||
機能・相同性 | ![]() Mitochondrial translation elongation / Mitochondrial translation termination / rRNA import into mitochondrion / mitochondrial translational elongation / mitochondrial translational termination / ribonuclease III activity / microprocessor complex / translation release factor activity, codon nonspecific / Mitochondrial protein degradation / mitochondrial large ribosomal subunit ...Mitochondrial translation elongation / Mitochondrial translation termination / rRNA import into mitochondrion / mitochondrial translational elongation / mitochondrial translational termination / ribonuclease III activity / microprocessor complex / translation release factor activity, codon nonspecific / Mitochondrial protein degradation / mitochondrial large ribosomal subunit / peptidyl-tRNA hydrolase / aminoacyl-tRNA hydrolase activity / mitochondrial translation / organelle membrane / RNA processing / large ribosomal subunit / double-stranded RNA binding / 5S rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / nuclear body / rRNA binding / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / protein domain specific binding / nucleotide binding / mitochondrion / RNA binding / nucleus / plasma membrane / cytosol 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: 4.9 Å | ||||||||||||
![]() | Greber, B.J. / Boehringer, D. / Leitner, A. / Bieri, P. / Voigts-Hoffmann, F. / Erzberger, J.P. / Leibundgut, M. / Aebersold, R. / Ban, N. | ||||||||||||
![]() | ![]() タイトル: Architecture of the large subunit of the mammalian mitochondrial ribosome. 著者: Basil J Greber / Daniel Boehringer / Alexander Leitner / Philipp Bieri / Felix Voigts-Hoffmann / Jan P Erzberger / Marc Leibundgut / Ruedi Aebersold / Nenad Ban / ![]() 要旨: Mitochondrial ribosomes synthesize a number of highly hydrophobic proteins encoded on the genome of mitochondria, the organelles in eukaryotic cells that are responsible for energy conversion by ...Mitochondrial ribosomes synthesize a number of highly hydrophobic proteins encoded on the genome of mitochondria, the organelles in eukaryotic cells that are responsible for energy conversion by oxidative phosphorylation. The ribosomes in mammalian mitochondria have undergone massive structural changes throughout their evolution, including ribosomal RNA shortening and acquisition of mitochondria-specific ribosomal proteins. Here we present the three-dimensional structure of the 39S large subunit of the porcine mitochondrial ribosome determined by cryo-electron microscopy at 4.9 Å resolution. The structure, combined with data from chemical crosslinking and mass spectrometry experiments, reveals the unique features of the 39S subunit at near-atomic resolution and provides detailed insight into the architecture of the polypeptide exit site. This region of the mitochondrial ribosome has been considerably remodelled compared to its bacterial counterpart, providing a specialized platform for the synthesis and membrane insertion of the highly hydrophobic protein components of the respiratory chain. | ||||||||||||
履歴 |
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Remark 700 | SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "EA" IN EACH CHAIN ON SHEET RECORDS BELOW ... SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "EA" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 6-STRANDED BARREL THIS IS REPRESENTED BY A 7-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. |
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構造の表示
ムービー |
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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 | ![]() | 1.4 MB | 表示 | ![]() |
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PDB形式 | ![]() | 1.1 MB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.4 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.4 MB | 表示 | |
XML形式データ | ![]() | 117.2 KB | 表示 | |
CIF形式データ | ![]() | 198.5 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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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
+タンパク質 , 35種, 36分子 012356789DEFINOPQRSTUVWXYbchil...
-RNA鎖 , 2種, 2分子 AB
#10: RNA鎖 | 分子量: 501424.250 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
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#11: RNA鎖 | 分子量: 5641.792 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
-非ポリマー , 1種, 2分子 ![](data/chem/img/ZN.gif)
#38: 化合物 |
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-詳細
配列の詳細 | CHAINS I W X 7: ACCESSION CODE PROVIDED FOR MRNA SEQUENCE, PROTEIN SEQUENCE IS TRANSLATED MRNA. ...CHAINS I W X 7: ACCESSION CODE PROVIDED FOR MRNA SEQUENCE, PROTEIN SEQUENCE IS TRANSLATED |
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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 |
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試料調製
構成要素 | 名称: 39S MITOCHONDRIAL RIBOSOMAL SUBUNIT / タイプ: RIBOSOME |
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緩衝液 | 名称: 20 MM HEPES-KOH PH 7.9, 100 MM KCL, 1 MM DTT, 20 MM MGCL2 pH: 7.9 詳細: 20 MM HEPES-KOH PH 7.9, 100 MM KCL, 1 MM DTT, 20 MM MGCL2 |
試料 | 濃度: 0.07 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | 詳細: HOLEY CARBON |
急速凍結 | 装置: HOMEMADE PLUNGER / 凍結剤: ETHANE 詳細: MANUAL BLOTTING FOLLOWED BY MANUAL PLUNGING INTO LIQUID 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 詳細: IMAGES COLLECTED ON A FEI TITAN KRIOS BETWEEN NOVEMBER 2012 AND JUNE 2013. CALIBRATED MAGNIFICATION 141510 FOR FALCON II DATA AND 99290 FOR FALCON I DATA. |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 59000 X / 最大 デフォーカス(公称値): 3600 nm / 最小 デフォーカス(公称値): 1200 nm / Cs: 2.7 mm |
試料ホルダ | 温度: 79 K / 傾斜角・最大: 0 ° |
撮影 | 電子線照射量: 20 e/Å2 フィルム・検出器のモデル: FEI FALCON II (4k x 4k) |
放射波長 | 相対比: 1 |
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解析
EMソフトウェア |
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CTF補正 | 詳細: PER DETECTOR FRAME | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 手法: ANGULAR RECONSTITUTION FOR INITIAL MODEL GENERATION FOLLOWED BY REFINEMENT BY PROJECTION MATCHING 解像度: 4.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 232181 / ピクセルサイズ(実測値): 1.41 Å 詳細: RESOLUTION DETERMIED ACCORDING TO GOLD STANDARD FSC BY FSC EQUAL 0.143 CRITERION FROM TWO INDEPENDENTLY REFINED DATA HALF SETS Refinement type: HALF-MAPS REFINED INDEPENDENTLY / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: OTHER / 空間: REAL 詳細: REFINEMENT PROTOCOL--X-RAY STRUCTURES, HOMOLOGY MODELS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 |
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精密化 | 最高解像度: 4.9 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化ステップ | サイクル: LAST / 最高解像度: 4.9 Å
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