Ribosomal protein L28/L24 / Ribosomal protein L6, chloroplast / 50S ribosomal protein 5, chloroplastic / Family of unknown function (DUF5323) / Ribosomal protein L32p, plant/cyanobacteria type / Ribosome-recycling factor / Ribosomal protein L33 / Helix Hairpins - #3980 / Ribosome recycling factor / Ribosome recycling factor domain ...Ribosomal protein L28/L24 / Ribosomal protein L6, chloroplast / 50S ribosomal protein 5, chloroplastic / Family of unknown function (DUF5323) / Ribosomal protein L32p, plant/cyanobacteria type / Ribosome-recycling factor / Ribosomal protein L33 / Helix Hairpins - #3980 / Ribosome recycling factor / Ribosome recycling factor domain / RRF superfamily / Ribosome recycling factor / Ribosomal protein L17 / 50s Ribosomal Protein L17; Chain: A, / Ribosomal Protein L24e; Chain: T; / 50s Ribosomal Protein L5; Chain: A, / Ribosomal protein L5 / Nucleotidyltransferase; domain 5 - #100 / Ribosomal protein L16/L10 / Ribosomal Protein L14 / Ribosomal protein L14/L23 / Ribosomal protein L6 / Ribosomal protein L22/L17 / Ribosomal Protein L22; Chain A / Outer Surface Protein A; domain 3 / Aldehyde Oxidoreductase; domain 3 / Rubrerythrin, domain 2 / Topoisomerase I; Chain A, domain 4 / RRM (RNA recognition motif) domain / Single Sheet / Nucleic acid-binding proteins / 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 L36 signature. / Ribosomal protein L28/L24 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 L5, bacterial-type / Ribosomal protein L18, bacterial-type / : / Ribosomal protein L6, bacterial-type / Ribosomal protein L9/RNase H1, N-terminal / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein L20 signature. / Ribosomal protein L22, bacterial/chloroplast-type / Ribosomal protein L14P, bacterial-type / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L35 / Ribosomal protein L33 / Ribosomal protein L33 / Ribosomal L28 family / Ribosomal protein L33 superfamily / Ribosomal protein L16 / Ribosomal protein L28/L24 / Ribosomal protein L18 / Ribosomal L18 of archaea, bacteria, mitoch. and chloroplast / : / L28p-like / Ribosomal protein L27 / Ribosomal L27 protein / Ribosomal protein L20 / Ribosomal protein L19 / Ribosomal protein L19 / Ribosomal protein L20 / Ribosomal protein L20, C-terminal / Ribosomal protein L19 superfamily / Ribosomal protein L21 / Ribosomal protein L32p / Ribosomal protein L17 / Ribosomal protein L17 superfamily / Ribosomal protein L17 / Ribosomal proteins 50S L24/mitochondrial 39S L24 / Ribosomal protein L21-like / L21-like superfamily / Ribosomal prokaryotic L21 protein 類似検索 - ドメイン・相同性
: / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Large ribosomal subunit protein uL3c / Large ribosomal subunit protein uL15c / Large ribosomal subunit protein uL18c / Large ribosomal subunit protein bL27c ...: / : / RNA / RNA (> 10) / RNA (> 100) / RNA (> 1000) / Large ribosomal subunit protein uL3c / Large ribosomal subunit protein uL15c / Large ribosomal subunit protein uL18c / Large ribosomal subunit protein bL27c / Large ribosomal subunit protein uL6c / Large ribosomal subunit protein uL29c / Large ribosomal subunit protein bL28c / Large ribosomal subunit protein bL17c / Large ribosomal subunit protein bL9c / Large ribosomal subunit protein uL4c / Large ribosomal subunit protein uL2cz/uL2cy / Large ribosomal subunit protein uL22c / Large ribosomal subunit protein uL14c / Large ribosomal subunit protein bL36c / Large ribosomal subunit protein uL13c / Large ribosomal subunit protein uL16c / 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 / 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 / Ribosome-recycling factor, chloroplastic / Large ribosomal subunit protein bL34c / Large ribosomal subunit protein bL28c / Large ribosomal subunit protein uL29c / Large ribosomal subunit protein cL38 / Large ribosomal subunit protein bL19c / Large ribosomal subunit protein uL23c 類似検索 - 構成要素
ジャーナル: Nucleic Acids Res / 年: 2017 タイトル: Cryo-EM structure of the spinach chloroplast ribosome reveals the location of plastid-specific ribosomal proteins and extensions. 著者: Michael Graf / Stefan Arenz / Paul Huter / Alexandra Dönhöfer / Jirí Novácek / Daniel N Wilson / 要旨: Ribosomes are the protein synthesizing machines of the cell. Recent advances in cryo-EM have led to the determination of structures from a variety of species, including bacterial 70S and eukaryotic ...Ribosomes are the protein synthesizing machines of the cell. Recent advances in cryo-EM have led to the determination of structures from a variety of species, including bacterial 70S and eukaryotic 80S ribosomes as well as mitoribosomes from eukaryotic mitochondria, however, to date high resolution structures of plastid 70S ribosomes have been lacking. Here we present a cryo-EM structure of the spinach chloroplast 70S ribosome, with an average resolution of 5.4 Å for the small 30S subunit and 3.6 Å for the large 50S ribosomal subunit. The structure reveals the location of the plastid-specific ribosomal proteins (RPs) PSRP1, PSRP4, PSRP5 and PSRP6 as well as the numerous plastid-specific extensions of the RPs. We discover many features by which the plastid-specific extensions stabilize the ribosome via establishing additional interactions with surrounding ribosomal RNA and RPs. Moreover, we identify a large conglomerate of plastid-specific protein mass adjacent to the tunnel exit site that could facilitate interaction of the chloroplast ribosome with the thylakoid membrane and the protein-targeting machinery. Comparing the Escherichia coli 70S ribosome with that of the spinach chloroplast ribosome provides detailed insight into the co-evolution of RP and rRNA.
電子線照射量: 2.6 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
横: 4096 / 縦: 4096
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解析
ソフトウェア
名称: REFMAC / バージョン: 5.8.0158 / 分類: 精密化
EMソフトウェア
名称: FREALIGN / バージョン: 9.11 / カテゴリ: 3次元再構成
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: 37636 / 対称性のタイプ: POINT
原子モデル構築
プロトコル: RIGID BODY FIT / 空間: REAL
精密化
解像度: 3.6→3.6 Å / Cor.coef. Fo:Fc: 0.888 / SU B: 26.577 / SU ML: 0.341 立体化学のターゲット値: MAXIMUM LIKELIHOOD WITH PHASES 詳細: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
Rfactor
反射数
%反射
Rwork
0.23715
-
-
obs
0.23715
347198
100 %
溶媒の処理
イオンプローブ半径: 0.8 Å / 減衰半径: 0.8 Å / VDWプローブ半径: 1.2 Å / 溶媒モデル: MASK