- EMDB-11900: Staphylococcus aureus 50S after 30 minutes incubation at 37C -
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基本情報
登録情報
データベース: EMDB / ID: EMD-11900
タイトル
Staphylococcus aureus 50S after 30 minutes incubation at 37C
マップデータ
試料
複合体: 50S ribosomal subunit
タンパク質・ペプチド: x 27種
RNA: x 2種
リガンド: x 1種
キーワード
Ribosome / H68 / translation / protein synthesis
機能・相同性
機能・相同性情報
large ribosomal subunit / transferase activity / 5S rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding ...large ribosomal subunit / transferase activity / 5S rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / tRNA binding / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / ribonucleoprotein complex / mRNA binding / cytoplasm 類似検索 - 分子機能
: / Ribosomal protein L25, long-form / Ribosomal protein L25, beta domain / Ribosomal protein L25, C-terminal / Ribosomal protein TL5, C-terminal domain / : / Ribosomal protein L16 signature 1. / Ribosomal protein L16 signature 2. / Ribosomal protein L16, conserved site / Ribosomal protein L6, conserved site ...: / Ribosomal protein L25, long-form / Ribosomal protein L25, beta domain / Ribosomal protein L25, C-terminal / Ribosomal protein TL5, C-terminal domain / : / Ribosomal protein L16 signature 1. / Ribosomal protein L16 signature 2. / Ribosomal protein L16, conserved site / Ribosomal protein L6, conserved site / Ribosomal protein L6 signature 1. / : / Ribosomal protein L17 signature. / 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 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 L5, bacterial-type / Ribosomal protein L36 / Ribosomal protein L36 superfamily / Ribosomal protein L36 / Ribosomal protein L19, conserved site / Ribosomal protein L19 signature. / Ribosomal protein L27, conserved site / Ribosomal protein L27 signature. / Ribosomal protein L20 signature. / Ribosomal protein L14P, bacterial-type / Ribosomal protein L34, conserved site / Ribosomal protein L34 signature. / Ribosomal protein L2, bacterial/organellar-type / Ribosomal protein L35 / Ribosomal protein L35 superfamily / Ribosomal protein L35 / Ribosomal protein L33 / Ribosomal protein L18 / Ribosomal L18 of archaea, bacteria, mitoch. and chloroplast / Ribosomal protein L33 / Ribosomal L28 family / Ribosomal protein L33 superfamily / Ribosomal protein L16 / Ribosomal protein L28/L24 / Ribosomal protein L30, bacterial-type / L28p-like / Ribosomal protein L27 / Ribosomal L27 protein / Ribosomal protein L20 / Ribosomal L32p protein family / Ribosomal protein L19 / Ribosomal protein L20 / Ribosomal protein L20, C-terminal / Ribosomal protein L19 / Ribosomal protein L19 superfamily / Ribosomal protein L21 / Ribosomal protein L32p / Ribosomal protein L17 / Ribosomal protein L17 superfamily / Ribosomal protein L17 / Ribosomal protein L21-like / L21-like superfamily / Ribosomal prokaryotic L21 protein / Ribosomal protein L34 / Ribosomal protein L34 / Ribosomal protein L3, bacterial/organelle-type / Ribosomal protein L15, bacterial-type / 50S ribosomal protein uL4 / Ribosomal protein L13, bacterial-type / Ribosomal protein L5, conserved site / Ribosomal protein L5 signature. / Ribosomal protein L2 signature. / Ribosomal protein L2, conserved site / : / Ribosomal protein L5, N-terminal / Ribosomal protein L5 / Ribosomal protein L5, C-terminal / ribosomal L5P family C-terminus / Ribosomal protein L15, conserved site / Ribosomal protein L15 signature. / Ribosomal protein L5 / Ribosomal protein L10e/L16 / Ribosomal protein L10e/L16 superfamily / Ribosomal protein L16p/L10e / Ribosomal protein L5 domain superfamily / Ribosomal protein L13 signature. / Ribosomal protein L13, conserved site / Ribosomal protein L6, alpha-beta domain / Ribosomal protein L6 / Ribosomal protein L6 類似検索 - ドメイン・相同性
Large ribosomal subunit protein bL17 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein bL36 / Large ribosomal subunit protein bL35 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein bL28 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL33 / Large ribosomal subunit protein uL16 ...Large ribosomal subunit protein bL17 / Large ribosomal subunit protein uL15 / Large ribosomal subunit protein bL36 / Large ribosomal subunit protein bL35 / Large ribosomal subunit protein bL27 / Large ribosomal subunit protein bL28 / Large ribosomal subunit protein uL14 / Large ribosomal subunit protein bL19 / Large ribosomal subunit protein bL33 / Large ribosomal subunit protein uL16 / Large ribosomal subunit protein bL20 / Large ribosomal subunit protein uL29 / Large ribosomal subunit protein bL25 / 50S ribosomal protein L32 / Large ribosomal subunit protein uL5 / : / : / Large ribosomal subunit protein uL2 / Large ribosomal subunit protein bL21 / Large ribosomal subunit protein bL34 / Large ribosomal subunit protein uL4 / Large ribosomal subunit protein uL18 / Large ribosomal subunit protein uL23 / Large ribosomal subunit protein uL13 / Large ribosomal subunit protein uL3 / Large ribosomal subunit protein uL6 / Large ribosomal subunit protein uL30 類似検索 - 構成要素
ジャーナル: mBio / 年: 2022 タイトル: Structural Studies Reveal the Role of Helix 68 in the Elongation Step of Protein Biosynthesis. 著者: Giuseppe Cimicata / Gil Fridkin / Tanaya Bose / Zohar Eyal / Yehuda Halfon / Elinor Breiner-Goldstein / Tara Fox / Ella Zimmerman / Anat Bashan / Natalia de Val / Alexander Wlodawer / Ada Yonath / 要旨: The ribosome, a multicomponent assembly consisting of RNA and proteins, is a pivotal macromolecular machine that translates the genetic code into proteins. The large ribosomal subunit rRNA helix 68 ...The ribosome, a multicomponent assembly consisting of RNA and proteins, is a pivotal macromolecular machine that translates the genetic code into proteins. The large ribosomal subunit rRNA helix 68 (H68) is a key element in the protein synthesis process, as it coordinates the coupled movements of the actors involved in translocation, including the tRNAs and L1 stalk. Examination of cryo-electron microscopy (cryo-EM) structures of ribosomes incubated for various time durations at physiological temperatures led to the identification of functionally relevant H68 movements. These movements assist the transition of the L1 stalk between its open and closed states. H68 spatial flexibility and its significance to the protein synthesis process were confirmed through its effective targeting with antisense PNA oligomers. Our results suggest that H68 is actively involved in ribosome movements that are central to the elongation process. The mechanism that regulates the translocation step in ribosomes during protein synthesis is not fully understood. In this work, cryo-EM techniques used to image ribosomes from Staphylococcus aureus after incubation at physiological temperature allowed the identification of a conformation of the helix 68 that has never been observed so far. We then propose a mechanism in which such helix, switching between two different conformations, actively coordinates the translocation step, shedding light on the dynamics of ribosomal components. In addition, the relevance of helix 68 to ribosome function and its potential as an antibiotic target was proved by inhibiting Staphylococcus aureus ribosomes activity using oligomers with sequence complementarity.
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基本情報
マップデータ
試料
キーワード
機能・相同性情報
Staphylococcus aureus (黄色ブドウ球菌)
データ登録者
引用
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emd_11900.png
http://ftp.pdbj.org/pub/emdb/structures/EMD-11900
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試料の構成要素
解析
電子顕微鏡法
FIELD EMISSION GUN
