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3WY9

Crystal structure of a complex of the archaeal ribosomal stalk protein aP1 and the GDP-bound archaeal elongation factor aEF1alpha

3WY9 の概要
エントリーDOI10.2210/pdb3wy9/pdb
関連するPDBエントリー3WYA
分子名称Elongation factor 1-alpha, 50S ribosomal protein L12, GUANOSINE-5'-DIPHOSPHATE, ... (4 entities in total)
機能のキーワードmulti-domain, gtpase, aminoacyl-trna delivery, gtp, aminoacyl-trna, stalk protein, translation-ribosomal protein complex, translation/ribosomal protein
由来する生物種Pyrococcus horikoshii OT3
詳細
細胞内の位置Cytoplasm : O59153
タンパク質・核酸の鎖数4
化学式量合計105114.33
構造登録者
Ito, K.,Honda, T.,Suzuki, T.,Miyoshi, T.,Murakami, R.,Yao, M.,Uchiumi, T. (登録日: 2014-08-22, 公開日: 2014-12-24, 最終更新日: 2024-05-29)
主引用文献Ito, K.,Honda, T.,Suzuki, T.,Miyoshi, T.,Murakami, R.,Yao, M.,Uchiumi, T.
Molecular insights into the interaction of the ribosomal stalk protein with elongation factor 1 alpha.
Nucleic Acids Res., 42:14042-14052, 2014
Cited by
PubMed Abstract: In all organisms, the large ribosomal subunit contains multiple copies of a flexible protein, the so-called 'stalk'. The C-terminal domain (CTD) of the stalk interacts directly with the translational GTPase factors, and this interaction is required for factor-dependent activity on the ribosome. Here we have determined the structure of a complex of the CTD of the archaeal stalk protein aP1 and the GDP-bound archaeal elongation factor aEF1α at 2.3 Å resolution. The structure showed that the CTD of aP1 formed a long extended α-helix, which bound to a cleft between domains 1 and 3 of aEF1α, and bridged these domains. This binding between the CTD of aP1 and the aEF1α•GDP complex was formed mainly by hydrophobic interactions. The docking analysis showed that the CTD of aP1 can bind to aEF1α•GDP located on the ribosome. An additional biochemical assay demonstrated that the CTD of aP1 also bound to the aEF1α•GTP•aminoacyl-tRNA complex. These results suggest that the CTD of aP1 interacts with aEF1α at various stages in translation. Furthermore, phylogenetic perspectives and functional analyses suggested that the eukaryotic stalk protein also interacts directly with domains 1 and 3 of eEF1α, in a manner similar to the interaction of archaeal aP1 with aEF1α.
PubMed: 25428348
DOI: 10.1093/nar/gku1248
主引用文献が同じPDBエントリー
実験手法
X-RAY DIFFRACTION (2.3 Å)
構造検証レポート
Validation report summary of 3wy9
検証レポート(詳細版)ダウンロードをダウンロード

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件を2025-04-09に公開中

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