+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8rxh | ||||||
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タイトル | CRYO-EM STRUCTURE OF LEISHMANIA MAJOR 80S RIBOSOME WITH A/P/E-site tRNA AND mRNA : PARENTAL STRAIN | ||||||
要素 |
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キーワード | RIBOSOME / CRYO-EM / LEISHMANIA MAJOR / 80S | ||||||
機能・相同性 | 機能・相同性情報 ciliary transition zone / nuclear lumen / ciliary plasm / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / protein-RNA complex assembly / translation regulator activity / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / rescue of stalled ribosome ...ciliary transition zone / nuclear lumen / ciliary plasm / endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / protein-RNA complex assembly / translation regulator activity / endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of LSU-rRNA / 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 from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / maturation of SSU-rRNA / small-subunit processome / protein kinase C binding / maintenance of translational fidelity / modification-dependent protein catabolic process / protein tag activity / rRNA processing / ribosomal small subunit biogenesis / small ribosomal subunit rRNA binding / ribosome biogenesis / ribosome binding / kinase activity / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / negative regulation of translation / rRNA binding / ribosome / protein ubiquitination / structural constituent of ribosome / positive regulation of protein phosphorylation / ribonucleoprotein complex / translation / mRNA binding / ubiquitin protein ligase binding / nucleolus / RNA binding / zinc ion binding / nucleoplasm / nucleus / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | Leishmania major strain Friedlin (大形リーシュマニア) | ||||||
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: 2.93 Å | ||||||
データ登録者 | Rajan, K.S. / Yonath, A. | ||||||
資金援助 | European Union, 1件
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引用 | ジャーナル: Cell Rep / 年: 2024 タイトル: Structural and mechanistic insights into the function of Leishmania ribosome lacking a single pseudouridine modification. 著者: K Shanmugha Rajan / Saurav Aryal / Disha-Gajanan Hiregange / Anat Bashan / Hava Madmoni / Mika Olami / Tirza Doniger / Smadar Cohen-Chalamish / Pascal Pescher / Masato Taoka / Yuko Nobe / ...著者: K Shanmugha Rajan / Saurav Aryal / Disha-Gajanan Hiregange / Anat Bashan / Hava Madmoni / Mika Olami / Tirza Doniger / Smadar Cohen-Chalamish / Pascal Pescher / Masato Taoka / Yuko Nobe / Aliza Fedorenko / Tanaya Bose / Ella Zimermann / Eric Prina / Noa Aharon-Hefetz / Yitzhak Pilpel / Toshiaki Isobe / Ron Unger / Gerald F Späth / Ada Yonath / Shulamit Michaeli / 要旨: Leishmania is the causative agent of cutaneous and visceral diseases affecting millions of individuals worldwide. Pseudouridine (Ψ), the most abundant modification on rRNA, changes during the ...Leishmania is the causative agent of cutaneous and visceral diseases affecting millions of individuals worldwide. Pseudouridine (Ψ), the most abundant modification on rRNA, changes during the parasite life cycle. Alterations in the level of a specific Ψ in helix 69 (H69) affected ribosome function. To decipher the molecular mechanism of this phenotype, we determine the structure of ribosomes lacking the single Ψ and its parental strain at ∼2.4-3 Å resolution using cryo-EM. Our findings demonstrate the significance of a single Ψ on H69 to its structure and the importance for its interactions with helix 44 and specific tRNAs. Our study suggests that rRNA modification affects translation of mRNAs carrying codon bias due to selective accommodation of tRNAs by the ribosome. Based on the high-resolution structures, we propose a mechanism explaining how the ribosome selects specific tRNAs. | ||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8rxh.cif.gz | 5.3 MB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8rxh.ent.gz | 表示 | PDB形式 | |
PDBx/mmJSON形式 | 8rxh.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 | 8rxh_validation.pdf.gz | 2.2 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8rxh_full_validation.pdf.gz | 2.5 MB | 表示 | |
XML形式データ | 8rxh_validation.xml.gz | 379.2 KB | 表示 | |
CIF形式データ | 8rxh_validation.cif.gz | 626.8 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/rx/8rxh ftp://data.pdbj.org/pub/pdb/validation_reports/rx/8rxh | HTTPS FTP |
-関連構造データ
-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 , 13種, 13分子 L1L2L3L4L5L6L7L8S1S2S3S4S5
+Putative 60S ... , 23種, 23分子 LALELFLHLILJLLLNLOLQLSLTLULVLWLZLaLcLeLhLiLlLp
+Putative ribosomal protein ... , 7種, 7分子 LBLCLXLgLkSMSS
+60S ribosomal protein ... , 10種, 10分子 LDLGLPLRLYLbLdLfLnLo
+Putative 40S ribosomal protein ... , 14種, 14分子 LKSCSDSJSLSNSPSRSTSVSWSYScSd
+Ribosomal protein ... , 3種, 3分子 LMLjSU
+Ubiquitin-60S ribosomal protein ... , 2種, 2分子 LmSf
+40S ribosomal protein ... , 15種, 15分子 SASBSESFSGSHSISKSOSQSXSZSaSbSe
+タンパク質 , 2種, 2分子 SgSh
+非ポリマー , 6種, 933分子
+詳細
-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: CRYO-EM STRUCTURE OF LEISHMANIA MAJOR 80S RIBOSOME WITH A/P/E-site tRNA AND mRNA タイプ: RIBOSOME / Entity ID: #1-#7, #9-#50, #52-#89 / 由来: NATURAL |
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由来(天然) | 生物種: Leishmania major strain Friedlin (大形リーシュマニア) |
緩衝液 | pH: 7.6 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES 詳細: CRYO-EM STRUCTURE OF LEISHMANIA MAJOR 80S RIBOSOME WITH A/P/E-site tRNA AND mRNA |
試料支持 | グリッドの材料: COPPER / グリッドのタイプ: Quantifoil R2/2 |
急速凍結 | 凍結剤: ETHANE |
-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 / 最大 デフォーカス(公称値): 1700 nm / 最小 デフォーカス(公称値): 600 nm |
撮影 | 電子線照射量: 0.93403907986206 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
-解析
EMソフトウェア | 名称: PHENIX / バージョン: 1.20.1_4487 / カテゴリ: モデル精密化 |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
3次元再構成 | 解像度: 2.93 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 419524 / 対称性のタイプ: POINT |