- EMDB-1315: Structural basis for interaction of the ribosome with the switch ... -
+
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-1315
タイトル
Structural basis for interaction of the ribosome with the switch regions of GTP-bound elongation factors.
マップデータ
This is the volume file of the 70S-EFG-GMPPNP complex from Thermus thermophilus
試料
試料: complex of Thermus thermophilus 70S ribosomes and EF-G-GMPPNP
複合体: Thermus thermophilus 70S ribosome
タンパク質・ペプチド: elongation factor G
RNA: transfer RNA
機能・相同性
機能・相同性情報
ribosome disassembly / translational elongation / translation elongation factor activity / GDP binding / regulation of translation / large ribosomal subunit / ribosome binding / small ribosomal subunit / cytosolic small ribosomal subunit / tRNA binding ...ribosome disassembly / translational elongation / translation elongation factor activity / GDP binding / regulation of translation / large ribosomal subunit / ribosome binding / small ribosomal subunit / cytosolic small ribosomal subunit / tRNA binding / rRNA binding / structural constituent of ribosome / translation / response to antibiotic / GTPase activity / GTP binding / magnesium ion binding / cytoplasm 類似検索 - 分子機能
Translation elongation factor EFG/EF2 / : / Elongation factor G, domain III / EFG, domain V / Ribosomal protein L1, bacterial-type / Elongation Factor G, domain II / Elongation Factor G, domain III / Translation elongation factor EFG/EF2, domain IV / Elongation factor G, domain IV / Elongation factor G, domain IV ...Translation elongation factor EFG/EF2 / : / Elongation factor G, domain III / EFG, domain V / Ribosomal protein L1, bacterial-type / Elongation Factor G, domain II / Elongation Factor G, domain III / Translation elongation factor EFG/EF2, domain IV / Elongation factor G, domain IV / Elongation factor G, domain IV / Elongation factor G C-terminus / Elongation factor EFG, domain V-like / Elongation factor G C-terminus / EF-G domain III/V-like / Tr-type G domain, conserved site / Translational (tr)-type guanine nucleotide-binding (G) domain signature. / Ribosomal protein L1, conserved site / Ribosomal protein L1 signature. / Ribosomal protein L1 / Translation elongation factor EFTu-like, domain 2 / Ribosomal protein L1, 3-layer alpha/beta-sandwich / Elongation factor Tu domain 2 / Ribosomal protein L1-like / Ribosomal protein L1/ribosomal biogenesis protein / Ribosomal protein L1p/L10e family / Translational (tr)-type GTP-binding domain / Elongation factor Tu GTP binding domain / Translational (tr)-type guanine nucleotide-binding (G) domain profile. / Ribosomal protein S2, bacteria/mitochondria/plastid / Ribosomal protein S12, bacterial-type / Ribosomal protein S2 signature 1. / Ribosomal protein S2, conserved site / Ribosomal protein S2 / Ribosomal protein S2, flavodoxin-like domain superfamily / Ribosomal protein S2 / Small GTP-binding protein domain / Ribosomal protein S12 signature. / Ribosomal protein S12/S23 / Ribosomal protein S12/S23 / Translation protein, beta-barrel domain superfamily / Ribosomal protein S5 domain 2-type fold, subgroup / Ribosomal protein S5 domain 2-type fold / Nucleic acid-binding, OB-fold / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性
Elongation factor G / Small ribosomal subunit protein uS12 / Small ribosomal subunit protein uS2 / Small ribosomal subunit protein uS12 / Elongation factor G / Large ribosomal subunit protein uL1 類似検索 - 構成要素
ジャーナル: Mol Cell / 年: 2007 タイトル: Structural basis for interaction of the ribosome with the switch regions of GTP-bound elongation factors. 著者: Sean R Connell / Chie Takemoto / Daniel N Wilson / Hongfei Wang / Kazutaka Murayama / Takaho Terada / Mikako Shirouzu / Maximilian Rost / Martin Schüler / Jan Giesebrecht / Marylena ...著者: Sean R Connell / Chie Takemoto / Daniel N Wilson / Hongfei Wang / Kazutaka Murayama / Takaho Terada / Mikako Shirouzu / Maximilian Rost / Martin Schüler / Jan Giesebrecht / Marylena Dabrowski / Thorsten Mielke / Paola Fucini / Shigeyuki Yokoyama / Christian M T Spahn / 要旨: Elongation factor G (EF-G) catalyzes tRNA translocation on the ribosome. Here a cryo-EM reconstruction of the 70S*EF-G ribosomal complex at 7.3 A resolution and the crystal structure of EF-G-2*GTP, ...Elongation factor G (EF-G) catalyzes tRNA translocation on the ribosome. Here a cryo-EM reconstruction of the 70S*EF-G ribosomal complex at 7.3 A resolution and the crystal structure of EF-G-2*GTP, an EF-G homolog, at 2.2 A resolution are presented. EF-G-2*GTP is structurally distinct from previous EF-G structures, and in the context of the cryo-EM structure, the conformational changes are associated with ribosome binding and activation of the GTP binding pocket. The P loop and switch II approach A2660-A2662 in helix 95 of the 23S rRNA, indicating an important role for these conserved bases. Furthermore, the ordering of the functionally important switch I and II regions, which interact with the bound GTP, is dependent on interactions with the ribosome in the ratcheted conformation. Therefore, a network of interaction with the ribosome establishes the active GTP conformation of EF-G and thus facilitates GTP hydrolysis and tRNA translocation.