- EMDB-3533: Cryo-EM reconstruction of the 70S chloroplast ribosome -
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基本情報
登録情報
データベース: EMDB / ID: EMD-3533
タイトル
Cryo-EM reconstruction of the 70S chloroplast ribosome
マップデータ
Cryo-EM reconstruction of the 70S chloroplast ribosome
試料
複合体: Chloroplast 70S ribosome
タンパク質・ペプチド: x 56種
RNA: x 5種
リガンド: x 2種
キーワード
chloroplast / translation / ribosome / cryo-EM
機能・相同性
機能・相同性情報
chloroplast rRNA processing / plastid small ribosomal subunit / plastid translation / negative regulation of translational elongation / chloroplast envelope / mitochondrial large ribosomal subunit / mitochondrial small ribosomal subunit / mitochondrial translation / plastid / chloroplast stroma ...chloroplast rRNA processing / plastid small ribosomal subunit / plastid translation / negative regulation of translational elongation / chloroplast envelope / mitochondrial large ribosomal subunit / mitochondrial small ribosomal subunit / mitochondrial translation / plastid / chloroplast stroma / chloroplast thylakoid membrane / ribosomal small subunit binding / chloroplast / DNA-templated transcription termination / large ribosomal subunit / transferase activity / ribosomal small subunit biogenesis / ribosomal small subunit assembly / small ribosomal subunit / small ribosomal subunit rRNA binding / 5S rRNA binding / ribosomal large subunit assembly / cytosolic small ribosomal subunit / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / ribonucleoprotein complex / response to antibiotic / mRNA binding / mitochondrion / RNA binding 類似検索 - 分子機能
Ribosomal protein PSRP-3/Ycf65 / PSRP-3/Ycf65 superfamily / Plastid and cyanobacterial ribosomal protein (PSRP-3 / Ycf65) / 30S ribosomal protein S31, plant / Ribosomal protein S31e / Ribosomal protein L6, chloroplast / 50S ribosomal protein 5, chloroplastic / Family of unknown function (DUF5323) / Ribosomal protein L32p, plant/cyanobacteria type / : ...Ribosomal protein PSRP-3/Ycf65 / PSRP-3/Ycf65 superfamily / Plastid and cyanobacterial ribosomal protein (PSRP-3 / Ycf65) / 30S ribosomal protein S31, plant / Ribosomal protein S31e / Ribosomal protein L6, chloroplast / 50S ribosomal protein 5, chloroplastic / Family of unknown function (DUF5323) / Ribosomal protein L32p, plant/cyanobacteria type / : / Ribosome hibernation promoting factor, long/plastid / Sigma 54 modulation/S30EA ribosomal protein, C-terminal / Sigma 54 modulation/S30EA ribosomal protein, C-terminal domain superfamily / Sigma 54 modulation/S30EA ribosomal protein C terminus / : / Ribosome hibernation promoting factor/RaiA / Ribosome hibernation promotion factor-like / Sigma 54 modulation protein / S30EA ribosomal protein / 30S ribosomal protein / Ribosomal protein L10 / : / Ribosomal protein L11, bacterial-type / Ribosomal protein S14, bacterial/plastid / Ribosomal protein S21 superfamily / Ribosomal protein S21 / Ribosomal protein S16, conserved site / Ribosomal protein S16 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 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 / RNA recognition motif / Ribosomal protein L36 signature. / RNA recognition motif / Ribosomal protein L28/L24 superfamily / Eukaryotic RNA Recognition Motif (RRM) profile. / RNA recognition motif domain / 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 S19, bacterial-type / Ribosomal protein S3, bacterial-type / Ribosomal protein L6, bacterial-type / Ribosomal protein S7, bacterial/organellar-type / Ribosomal protein L5, bacterial-type / Ribosomal protein L9/RNase H1, N-terminal / Ribosomal protein S11, bacterial-type / Ribosomal protein S4, bacterial-type / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / 30S ribosomal protein S17 / Ribosomal protein S5, bacterial-type / RNA-binding domain superfamily / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein S6, plastid/chloroplast / Ribosomal protein L20 signature. / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein L14P, bacterial-type / Ribosomal protein S2, bacteria/mitochondria/plastid / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L35 類似検索 - ドメイン・相同性
Large ribosomal subunit protein uL3c / Large ribosomal subunit protein uL24c / Large ribosomal subunit protein uL15c / Large ribosomal subunit protein uL18c / Small ribosomal subunit protein uS13c / Small ribosomal subunit protein bS6c alpha / Large ribosomal subunit protein bL31c / Large ribosomal subunit protein uL10c / Large ribosomal subunit protein bL27c / Large ribosomal subunit protein uL6c ...Large ribosomal subunit protein uL3c / Large ribosomal subunit protein uL24c / Large ribosomal subunit protein uL15c / Large ribosomal subunit protein uL18c / Small ribosomal subunit protein uS13c / Small ribosomal subunit protein bS6c alpha / Large ribosomal subunit protein bL31c / Large ribosomal subunit protein uL10c / Large ribosomal subunit protein bL27c / Large ribosomal subunit protein uL6c / Large ribosomal subunit protein uL29c / Large ribosomal subunit protein bL28c / Small ribosomal subunit protein bS21c / Large ribosomal subunit protein uL5c / Large ribosomal subunit protein bL17c / Large ribosomal subunit protein bL9c / Small ribosomal subunit protein uS17c / Large ribosomal subunit protein uL4c / Small ribosomal subunit protein uS10c / Small ribosomal subunit protein uS9c / Large ribosomal subunit protein cL37 alpha / Large ribosomal subunit protein uL4c / Small ribosomal subunit protein uS11c / Small ribosomal subunit protein uS14c / Small ribosomal subunit protein uS19c / Large ribosomal subunit protein uL2cz/uL2cy / Small ribosomal subunit protein uS2c / Large ribosomal subunit protein uL22c / Small ribosomal subunit protein uS3c / Large ribosomal subunit protein uL14c / Small ribosomal subunit protein uS8c / Large ribosomal subunit protein bL36c / Large ribosomal subunit protein uL13c / Small ribosomal subunit protein uS4c / Large ribosomal subunit protein uL16c / Ribosome-binding factor PSRP1, chloroplastic / Large ribosomal subunit protein uL15c / Large ribosomal subunit protein bL35c / Large ribosomal subunit protein bL21c / Large ribosomal subunit protein uL24c / Large ribosomal subunit protein cL37 alpha / Large ribosomal subunit protein bL20c / Large ribosomal subunit protein bL32c / Large ribosomal subunit protein bL33c / Small ribosomal subunit protein bS16c / Large ribosomal subunit protein uL11c / Small ribosomal subunit protein bTHXc / Small ribosomal subunit protein uS12cz/uS12cy / Small ribosomal subunit protein bS21c / Small ribosomal subunit protein uS7cz/uS7cy / Small ribosomal subunit protein uS17c / Large ribosomal subunit protein uL10c / Small ribosomal subunit protein uS10c / Small ribosomal subunit protein uS13c / Large ribosomal subunit protein bL9c / Large ribosomal subunit protein bL27c / Large ribosomal subunit protein uL3c / Large ribosomal subunit protein uL5c / Large ribosomal subunit protein uL6c / Large ribosomal subunit protein bL17c / Large ribosomal subunit protein uL18c / Large ribosomal subunit protein bL34c / Large ribosomal subunit protein bL28c / Large ribosomal subunit protein uL29c / Large ribosomal subunit protein bL31c / Small ribosomal subunit protein cS22 / Small ribosomal subunit protein uS9c / Small ribosomal subunit protein bS6c alpha / Large ribosomal subunit protein cL38 / Small ribosomal subunit protein cS23 / Large ribosomal subunit protein bL19c / Large ribosomal subunit protein uL23c / Small ribosomal subunit protein uS15c / Small ribosomal subunit protein bS18c / Small ribosomal subunit protein uS5c 類似検索 - 構成要素
ジャーナル: EMBO J / 年: 2017 タイトル: The complete structure of the chloroplast 70S ribosome in complex with translation factor pY. 著者: Philipp Bieri / Marc Leibundgut / Martin Saurer / Daniel Boehringer / Nenad Ban / 要旨: Chloroplasts are cellular organelles of plants and algae that are responsible for energy conversion and carbon fixation by the photosynthetic reaction. As a consequence of their endosymbiotic origin, ...Chloroplasts are cellular organelles of plants and algae that are responsible for energy conversion and carbon fixation by the photosynthetic reaction. As a consequence of their endosymbiotic origin, they still contain their own genome and the machinery for protein biosynthesis. Here, we present the atomic structure of the chloroplast 70S ribosome prepared from spinach leaves and resolved by cryo-EM at 3.4 Å resolution. The complete structure reveals the features of the 4.5S rRNA, which probably evolved by the fragmentation of the 23S rRNA, and all five plastid-specific ribosomal proteins. These proteins, required for proper assembly and function of the chloroplast translation machinery, bind and stabilize rRNA including regions that only exist in the chloroplast ribosome. Furthermore, the structure reveals plastid-specific extensions of ribosomal proteins that extensively remodel the mRNA entry and exit site on the small subunit as well as the polypeptide tunnel exit and the putative binding site of the signal recognition particle on the large subunit. The translation factor pY, involved in light- and temperature-dependent control of protein synthesis, is bound to the mRNA channel of the small subunit and interacts with 16S rRNA nucleotides at the A-site and P-site, where it protects the decoding centre and inhibits translation by preventing tRNA binding. The small subunit is locked by pY in a non-rotated state, in which the intersubunit bridges to the large subunit are stabilized.
名称: plastid ribosomal protein uL5c / タイプ: protein_or_peptide / ID: 14 詳細: Residues 39-52 were built as poly-alanine and deposited as UNK. コピー数: 1 / 光学異性体: LEVO
名称: 50S ribosomal protein L21, chloroplastic / タイプ: protein_or_peptide / ID: 27 詳細: Residues 68-81 were built as poly-alanine and deposited as UNK. コピー数: 1 / 光学異性体: LEVO
名称: plastid ribosomal protein bS1c / タイプ: protein_or_peptide / ID: 36 詳細: Residues 1001-1068 (OB-fold) and residues 1101-1143 and 1201-1263 (extensions) were built as poly-alanine and deposited as UNK. コピー数: 1 / 光学異性体: LEVO
名称: 30S ribosomal protein S5, chloroplastic / タイプ: protein_or_peptide / ID: 41 詳細: Residues 122-150 were built as poly-alanine and deposited as UNK. コピー数: 1 / 光学異性体: LEVO
名称: tRNA-Phe / タイプ: rna / ID: 35 詳細: An idealized full-length E-site E.coli tRNA-Phe (76 residues) from PDB 2J00 was fitted into the density and adjusted prior to minimization. コピー数: 1