- EMDB-2847: 2.9A structure of E. coli ribosome-EF-Tu complex by Cs-corrected ... -
+
データを開く
IDまたはキーワード:
読み込み中...
-
基本情報
登録情報
データベース: EMDB / ID: EMD-2847
タイトル
2.9A structure of E. coli ribosome-EF-Tu complex by Cs-corrected cryo-EM
マップデータ
Structure of E. coli 70S-EF-Tu-GDP-kirromycin-Phe-tRNAPhe-fMet-tRNAfmet-tRNAfMet complex optimum contour level 0.32-0.64 (1.5-3 sigma)
試料
試料: E. coli 70S-EF-Tu-GDP-kirromycin-Phe-tRNAPhe-fMet-tRNAfmet-tRNAfMet complex
複合体: 70S ribosome
タンパク質・ペプチド: elongation factor Tu
RNA: Phe-tRNAPhe
RNA: initiator fMet-tRNAfMet
RNA: deacylated tRNAfMet
RNA: mRNA
キーワード
ribosome / translation / protein synthesis / decoding / elongation factor Tu / tRNA / RNA modification / antibiotic
機能・相同性
機能・相同性情報
guanyl-nucleotide exchange factor complex / protein-synthesizing GTPase / guanosine tetraphosphate binding / negative regulation of cytoplasmic translational initiation / stringent response / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / translational elongation ...guanyl-nucleotide exchange factor complex / protein-synthesizing GTPase / guanosine tetraphosphate binding / negative regulation of cytoplasmic translational initiation / stringent response / ornithine decarboxylase inhibitor activity / transcription antitermination factor activity, RNA binding / misfolded RNA binding / Group I intron splicing / translational elongation / RNA folding / transcriptional attenuation / translation elongation factor activity / endoribonuclease inhibitor activity / positive regulation of ribosome biogenesis / RNA-binding transcription regulator activity / translational termination / negative regulation of cytoplasmic translation / four-way junction DNA binding / DnaA-L2 complex / translation repressor activity / negative regulation of translational initiation / regulation of mRNA stability / negative regulation of DNA-templated DNA replication initiation / mRNA regulatory element binding translation repressor activity / assembly of large subunit precursor of preribosome / positive regulation of RNA splicing / ribosome assembly / transcription elongation factor complex / regulation of DNA-templated transcription elongation / cytosolic ribosome assembly / response to reactive oxygen species / DNA endonuclease activity / transcription antitermination / translational initiation / regulation of cell growth / DNA-templated transcription termination / response to radiation / maintenance of translational fidelity / mRNA 5'-UTR binding / ribosome biogenesis / large ribosomal subunit / regulation of translation / transferase activity / ribosome binding / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / 5S rRNA binding / small ribosomal subunit rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytosolic small ribosomal subunit / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / response to antibiotic / negative regulation of DNA-templated transcription / mRNA binding / GTPase activity / GTP binding / DNA binding / RNA binding / zinc ion binding / membrane / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能
Translation elongation factor EFTu/EF1A, C-terminal / Translation elongation factor EFTu/EF1A, bacterial/organelle / Elongation factor Tu, domain 2 / Elongation factor Tu (EF-Tu), GTP-binding domain / : / Elongation factor Tu C-terminal domain / Translation elongation factor EF1A/initiation factor IF2gamma, C-terminal / Ribosomal protein L10, eubacterial, conserved site / Ribosomal protein L10 signature. / Ribosomal protein L10 ...Translation elongation factor EFTu/EF1A, C-terminal / Translation elongation factor EFTu/EF1A, bacterial/organelle / Elongation factor Tu, domain 2 / Elongation factor Tu (EF-Tu), GTP-binding domain / : / Elongation factor Tu C-terminal domain / Translation elongation factor EF1A/initiation factor IF2gamma, C-terminal / Ribosomal protein L10, eubacterial, conserved site / Ribosomal protein L10 signature. / Ribosomal protein L10 / Tr-type G domain, conserved site / Translational (tr)-type guanine nucleotide-binding (G) domain signature. / : / Translation elongation factor EFTu-like, domain 2 / Elongation factor Tu domain 2 / Ribosomal protein S21, conserved site / Ribosomal protein S21 signature. / Ribosomal protein L11, bacterial-type / Ribosomal protein L25, short-form / Ribosomal protein S14, bacterial/plastid / Ribosomal protein L31 type A / Ribosomal protein S21 superfamily / Translational (tr)-type GTP-binding domain / Elongation factor Tu GTP binding domain / Translational (tr)-type guanine nucleotide-binding (G) domain profile. / Ribosomal protein S21 / Ribosomal protein S16, conserved site / Ribosomal protein S16 signature. / Ribosomal protein L31 signature. / Ribosomal protein S21 / Ribosomal protein L31 / Ribosomal protein L31 superfamily / Ribosomal protein L31 / Ribosomal protein L11, conserved site / Ribosomal protein L11 signature. / Ribosomal protein L10-like domain superfamily / Ribosomal protein L10P / Ribosomal protein L10 / Ribosomal protein L16 signature 1. / Ribosomal protein L21, conserved site / Ribosomal protein L21 signature. / Ribosomal protein L16 signature 2. / Ribosomal protein L16, conserved site / Ribosomal protein L6, conserved site / Ribosomal protein L6 signature 1. / : / Ribosomal protein L9 signature. / Ribosomal protein L9, bacteria/chloroplast / Ribosomal protein L9, C-terminal / Ribosomal protein L9, C-terminal domain / Ribosomal protein L9, C-terminal domain superfamily / Ribosomal protein L11, N-terminal / Ribosomal protein L11, N-terminal domain / Ribosomal protein L17 signature. / Ribosomal protein L11/L12 / Ribosomal protein L11, C-terminal / Ribosomal protein L11, C-terminal domain superfamily / Ribosomal protein L11/L12, N-terminal domain superfamily / Ribosomal protein L11/L12 / Ribosomal protein L11, RNA binding domain / Ribosomal L25p family / Ribosomal protein L25 / Ribosomal protein L36 signature. / Ribosomal protein L32p, bacterial type / Ribosomal protein L28/L24 superfamily / Ribosomal protein L25/Gln-tRNA synthetase, N-terminal / Ribosomal protein L25/Gln-tRNA synthetase, anti-codon-binding domain superfamily / Ribosomal protein L9, N-terminal domain superfamily / Ribosomal protein L9 / : / Ribosomal protein L9, N-terminal / Ribosomal protein L9, N-terminal domain / Ribosomal protein L33, conserved site / Ribosomal protein L33 signature. / Ribosomal protein L35, conserved site / Ribosomal protein L35 signature. / Ribosomal protein L28 / Ribosomal protein L35, non-mitochondrial / Ribosomal protein L18, bacterial-type / : / Ribosomal protein L6, bacterial-type / Ribosomal protein S19, bacterial-type / Ribosomal protein S3, bacterial-type / Ribosomal protein S13, bacterial-type / Ribosomal protein S6, conserved site / Ribosomal protein S6 signature. / Ribosomal protein L9/RNase H1, N-terminal / Ribosomal protein S7, bacterial/organellar-type / Ribosomal protein S11, bacterial-type / Ribosomal protein L5, bacterial-type / Ribosomal protein S20 / Ribosomal protein S20 superfamily / Ribosomal protein S20 / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein S4, bacterial-type / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / 30S ribosomal protein S17 類似検索 - ドメイン・相同性
Small ribosomal subunit protein bS6 / Small ribosomal subunit protein uS7 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL10 / Large ribosomal subunit protein uL11 / Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL20 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein bL28 / Large ribosomal subunit protein uL29 ...Small ribosomal subunit protein bS6 / Small ribosomal subunit protein uS7 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein uL10 / Large ribosomal subunit protein uL11 / Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL20 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein bL28 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein bL31 / Large ribosomal subunit protein bL32 / Large ribosomal subunit protein bL33 / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein bL35 / Large ribosomal subunit protein bL36A / Large ribosomal subunit protein bL9 / Small ribosomal subunit protein uS10 / Small ribosomal subunit protein uS11 / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS13 / Small ribosomal subunit protein bS16 / Small ribosomal subunit protein bS18 / Small ribosomal subunit protein uS19 / Small ribosomal subunit protein bS20 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS3 / Small ribosomal subunit protein uS4 / Small ribosomal subunit protein uS5 / Small ribosomal subunit protein uS8 / Small ribosomal subunit protein uS9 / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein uL23 / Small ribosomal subunit protein uS15 / Large ribosomal subunit protein bL17 / Large ribosomal subunit protein bL21 / Large ribosomal subunit protein uL30 / Large ribosomal subunit protein uL6 / Small ribosomal subunit protein uS14 / Small ribosomal subunit protein uS17 / Large ribosomal subunit protein uL18 / Elongation factor Tu 2 / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL24 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein uL22 / Large ribosomal subunit protein uL5 / Small ribosomal subunit protein bS21 / Large ribosomal subunit protein bL25 類似検索 - 構成要素
ジャーナル: Nature / 年: 2015 タイトル: Structure of the E. coli ribosome-EF-Tu complex at <3 Å resolution by Cs-corrected cryo-EM. 著者: Niels Fischer / Piotr Neumann / Andrey L Konevega / Lars V Bock / Ralf Ficner / Marina V Rodnina / Holger Stark / 要旨: Single particle electron cryomicroscopy (cryo-EM) has recently made significant progress in high-resolution structure determination of macromolecular complexes due to improvements in electron ...Single particle electron cryomicroscopy (cryo-EM) has recently made significant progress in high-resolution structure determination of macromolecular complexes due to improvements in electron microscopic instrumentation and computational image analysis. However, cryo-EM structures can be highly non-uniform in local resolution and all structures available to date have been limited to resolutions above 3 Å. Here we present the cryo-EM structure of the 70S ribosome from Escherichia coli in complex with elongation factor Tu, aminoacyl-tRNA and the antibiotic kirromycin at 2.65-2.9 Å resolution using spherical aberration (Cs)-corrected cryo-EM. Overall, the cryo-EM reconstruction at 2.9 Å resolution is comparable to the best-resolved X-ray structure of the E. coli 70S ribosome (2.8 Å), but provides more detailed information (2.65 Å) at the functionally important ribosomal core. The cryo-EM map elucidates for the first time the structure of all 35 rRNA modifications in the bacterial ribosome, explaining their roles in fine-tuning ribosome structure and function and modulating the action of antibiotics. We also obtained atomic models for flexible parts of the ribosome such as ribosomal proteins L9 and L31. The refined cryo-EM-based model presents the currently most complete high-resolution structure of the E. coli ribosome, which demonstrates the power of cryo-EM in structure determination of large and dynamic macromolecular complexes.
全体 : E. coli 70S-EF-Tu-GDP-kirromycin-Phe-tRNAPhe-fMet-tRNAfmet-tRNAfM...
全体
名称: E. coli 70S-EF-Tu-GDP-kirromycin-Phe-tRNAPhe-fMet-tRNAfmet-tRNAfMet complex
要素
試料: E. coli 70S-EF-Tu-GDP-kirromycin-Phe-tRNAPhe-fMet-tRNAfmet-tRNAfMet complex
複合体: 70S ribosome
タンパク質・ペプチド: elongation factor Tu
RNA: Phe-tRNAPhe
RNA: initiator fMet-tRNAfMet
RNA: deacylated tRNAfMet
RNA: mRNA
-
超分子 #1000: E. coli 70S-EF-Tu-GDP-kirromycin-Phe-tRNAPhe-fMet-tRNAfmet-tRNAfM...
超分子
名称: E. coli 70S-EF-Tu-GDP-kirromycin-Phe-tRNAPhe-fMet-tRNAfmet-tRNAfMet complex タイプ: sample / ID: 1000 / Number unique components: 6
分子量
理論値: 2.8 MDa
-
超分子 #1: 70S ribosome
超分子
名称: 70S ribosome / タイプ: complex / ID: 1 / 組換発現: No / Ribosome-details: ribosome-prokaryote: ALL
由来(天然)
生物種: Escherichia coli (大腸菌)
-
分子 #1: elongation factor Tu
分子
名称: elongation factor Tu / タイプ: protein_or_peptide / ID: 1 / Name.synonym: EF-Tu 詳細: EF-Tu-GDP stalled on the ribosome by the antibiotic kirromycin 組換発現: Yes
由来(天然)
生物種: Escherichia coli (大腸菌)
-
分子 #2: Phe-tRNAPhe
分子
名称: Phe-tRNAPhe / タイプ: rna / ID: 2 / 分類: TRANSFER / Structure: OTHER / Synthetic?: No
由来(天然)
生物種: Escherichia coli (大腸菌)
-
分子 #3: initiator fMet-tRNAfMet
分子
名称: initiator fMet-tRNAfMet / タイプ: rna / ID: 3 / 分類: TRANSFER / Structure: OTHER / Synthetic?: No
由来(天然)
生物種: Escherichia coli (大腸菌)
-
分子 #4: deacylated tRNAfMet
分子
名称: deacylated tRNAfMet / タイプ: rna / ID: 4 / 分類: TRANSFER / Structure: OTHER / Synthetic?: No
由来(天然)
生物種: Escherichia coli (大腸菌)
-
分子 #5: mRNA
分子
名称: mRNA / タイプ: rna / ID: 5 / 分類: TRANSFER / Structure: SINGLE STRANDED / Synthetic?: Yes
詳細: Quantifoil grids (3.5/1um) covered with pre-floated continuous carbon
凍結
凍結剤: ETHANE / チャンバー内湿度: 100 % / 装置: FEI VITROBOT MARK IV
-
電子顕微鏡法
顕微鏡
FEI TITAN KRIOS
アライメント法
Legacy - 非点収差: Using a Cs-corrector from CEOS electron optical aberrations were corrected to residual phase errors of 45degree at scattering angles of >12 to 15 mrad.
日付
2011年12月20日
撮影
カテゴリ: CCD フィルム・検出器のモデル: FEI FALCON I (4k x 4k) 実像数: 24684 / 平均電子線量: 40 e/Å2