+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 2bcw | ||||||
---|---|---|---|---|---|---|---|
タイトル | Coordinates of the N-terminal domain of ribosomal protein L11,C-terminal domain of ribosomal protein L7/L12 and a portion of the G' domain of elongation factor G, as fitted into cryo-em map of an Escherichia coli 70S*EF-G*GDP*fusidic acid complex | ||||||
要素 |
| ||||||
キーワード | RIBOSOME / Components involved in interaction between EF-G AND L7/L12 stalk base of the ribosome | ||||||
機能・相同性 | 機能・相同性情報 translational elongation / translation elongation factor activity / GDP binding / large ribosomal subunit / ribosome binding / large ribosomal subunit rRNA binding / cytoplasmic translation / cytosolic large ribosomal subunit / structural constituent of ribosome / translation ...translational elongation / translation elongation factor activity / GDP binding / large ribosomal subunit / ribosome binding / large ribosomal subunit rRNA binding / cytoplasmic translation / cytosolic large ribosomal subunit / structural constituent of ribosome / translation / GTPase activity / mRNA binding / GTP binding / magnesium ion binding / protein homodimerization activity / cytosol / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | Thermotoga maritima (バクテリア) Escherichia coli (大腸菌) Thermus thermophilus (バクテリア) | ||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 11.2 Å | ||||||
データ登録者 | Datta, P.P. / Sharma, M.R. / Qi, L. / Frank, J. / Agrawal, R.K. | ||||||
引用 | ジャーナル: Mol Cell / 年: 2005 タイトル: Interaction of the G' domain of elongation factor G and the C-terminal domain of ribosomal protein L7/L12 during translocation as revealed by cryo-EM. 著者: Partha P Datta / Manjuli R Sharma / Li Qi / Joachim Frank / Rajendra K Agrawal / 要旨: During tRNA translocation on the ribosome, an arc-like connection (ALC) is formed between the G' domain of elongation factor G (EF-G) and the L7/L12-stalk base of the large ribosomal subunit in the ...During tRNA translocation on the ribosome, an arc-like connection (ALC) is formed between the G' domain of elongation factor G (EF-G) and the L7/L12-stalk base of the large ribosomal subunit in the GDP state. To delineate the boundary of EF-G within the ALC, we tagged an amino acid residue near the tip of the G' domain of EF-G with undecagold, which was then visualized with three-dimensional cryo-electron microscopy (cryo-EM). Two distinct positions for the undecagold, observed in the GTP-state and GDP-state cryo-EM maps of the ribosome bound EF-G, allowed us to determine the movement of the labeled amino acid. Molecular analyses of the cryo-EM maps show: (1) that three structural components, the N-terminal domain of ribosomal protein L11, the C-terminal domain of ribosomal protein L7/L12, and the G' domain of EF-G, participate in formation of the ALC; and (2) that both EF-G and the ribosomal protein L7/L12 undergo large conformational changes to form the ALC. #1: ジャーナル: Cell / 年: 1999 タイトル: A detailed view of a ribosomal active site: the structure of the L11-RNA complex. 著者: B T Wimberly / R Guymon / J P McCutcheon / S W White / V Ramakrishnan / 要旨: We report the crystal structure of a 58 nucleotide fragment of 23S ribosomal RNA bound to ribosomal protein L11. This highly conserved ribonucleoprotein domain is the target for the thiostrepton ...We report the crystal structure of a 58 nucleotide fragment of 23S ribosomal RNA bound to ribosomal protein L11. This highly conserved ribonucleoprotein domain is the target for the thiostrepton family of antibiotics that disrupt elongation factor function. The highly compact RNA has both familiar and novel structural motifs. While the C-terminal domain of L11 binds RNA tightly, the N-terminal domain makes only limited contacts with RNA and is proposed to function as a switch that reversibly associates with an adjacent region of RNA. The sites of mutations conferring resistance to thiostrepton and micrococcin line a narrow cleft between the RNA and the N-terminal domain. These antibiotics are proposed to bind in this cleft, locking the putative switch and interfering with the function of elongation factors. #2: ジャーナル: J Mol Biol / 年: 1987 タイトル: Structure of the C-terminal domain of the ribosomal protein L7/L12 from Escherichia coli at 1.7 A. 著者: M Leijonmarck / A Liljas / 要旨: The structure of a C-terminal fragment of the ribosomal protein L7/L12 from Escherichia coli has been refined using crystallographic data to 1.7 A resolution. The R-value is 17.4%. Six residues at ...The structure of a C-terminal fragment of the ribosomal protein L7/L12 from Escherichia coli has been refined using crystallographic data to 1.7 A resolution. The R-value is 17.4%. Six residues at the N terminus are too disordered in the structure to be localized. These residues are probably part of a hinge in the complete L7/L12 molecule. The possibility that a 2-fold crystallographic axis is a molecular 2-fold axis is discussed. A patch of invariant residues on the surface of the dimer is probably involved in functional interactions with elongation factors. #3: ジャーナル: EMBO J / 年: 1994 タイトル: Three-dimensional structure of the ribosomal translocase: elongation factor G from Thermus thermophilus. 著者: A AEvarsson / E Brazhnikov / M Garber / J Zheltonosova / Y Chirgadze / S al-Karadaghi / L A Svensson / A Liljas / 要旨: The crystal structure of Thermus thermophilus elongation factor G without guanine nucleotide was determined to 2.85 A. This GTPase has five domains with overall dimensions of 50 x 60 x 118 A. The GTP ...The crystal structure of Thermus thermophilus elongation factor G without guanine nucleotide was determined to 2.85 A. This GTPase has five domains with overall dimensions of 50 x 60 x 118 A. The GTP binding domain has a core common to other GTPases with a unique subdomain which probably functions as an intrinsic nucleotide exchange factor. Domains I and II are homologous to elongation factor Tu and their arrangement, both with and without GDP, is more similar to elongation factor Tu in complex with a GTP analogue than with GDP. Domains III and V show structural similarities to ribosomal proteins. Domain IV protrudes from the main body of the protein and has an extraordinary topology with a left-handed cross-over connection between two parallel beta-strands. | ||||||
履歴 |
|
-構造の表示
ムービー |
ムービービューア |
---|---|
構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 2bcw.cif.gz | 18.1 KB | 表示 | PDBx/mmCIF形式 |
---|---|---|---|---|
PDB形式 | pdb2bcw.ent.gz | 7.8 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 2bcw.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 2bcw_validation.pdf.gz | 290.2 KB | 表示 | wwPDB検証レポート |
---|---|---|---|---|
文書・詳細版 | 2bcw_full_validation.pdf.gz | 289.8 KB | 表示 | |
XML形式データ | 2bcw_validation.xml.gz | 888 B | 表示 | |
CIF形式データ | 2bcw_validation.cif.gz | 2.6 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/bc/2bcw ftp://data.pdbj.org/pub/pdb/validation_reports/bc/2bcw | HTTPS FTP |
-関連構造データ
関連構造データ | |
---|---|
類似構造データ |
-リンク
-集合体
登録構造単位 |
|
---|---|
1 |
|
-要素
#1: タンパク質 | 分子量: 7021.266 Da / 分子数: 1 / 断片: N-terminal domain / 由来タイプ: 天然 / 由来: (天然) Thermotoga maritima (バクテリア) / 参照: UniProt: P29395 |
---|---|
#2: タンパク質 | 分子量: 6942.973 Da / 分子数: 1 / 断片: C-terminal domain / 由来タイプ: 天然 / 由来: (天然) Escherichia coli (大腸菌) / 参照: UniProt: P0A7K2 |
#3: タンパク質 | 分子量: 6710.497 Da / 分子数: 1 / 断片: A portion of G' domain' / 由来タイプ: 天然 / 由来: (天然) Thermus thermophilus (バクテリア) / 参照: UniProt: P13551 |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
---|---|
EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
-試料調製
構成要素 |
| |||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
緩衝液 | 名称: 20mM HEPES-KOH (pH 7.5), 6mM MgCl2, and 150 mM NH4Cl, 2mM spermidine, 0.4 mM spermine pH: 7.5 詳細: 20mM HEPES-KOH (pH 7.5), 6mM MgCl2, and 150 mM NH4Cl, 2mM spermidine, 0.4 mM spermine | |||||||||||||||||||||||||
試料 | 濃度: 0.03 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | |||||||||||||||||||||||||
試料支持 | 詳細: QUANTIFOIL HOLEY CARBON FILM GRIDS | |||||||||||||||||||||||||
急速凍結 | 詳細: RAPID-FREEZING IN LIQUID ETHANE |
-電子顕微鏡撮影
実験機器 | モデル: Tecnai F20 / 画像提供: FEI Company |
---|---|
顕微鏡 | モデル: FEI TECNAI F20 / 日付: 2004年11月9日 |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 200 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 50000 X / 倍率(補正後): 50760 X / 最大 デフォーカス(公称値): -3.5 nm / 最小 デフォーカス(公称値): -0.7 nm / Cs: 2 mm |
試料ホルダ | 温度: 93 K / 傾斜角・最大: 0 ° / 傾斜角・最小: 0 ° |
撮影 | 電子線照射量: 20 e/Å2 / フィルム・検出器のモデル: KODAK SO-163 FILM |
放射 | プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray |
放射波長 | 相対比: 1 |
-解析
EMソフトウェア |
| ||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF補正 | 詳細: CTF CORRECTION OF 3D MAPS BY WIENER FILTRATION | ||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||
3次元再構成 | 手法: REFERENCE BASED ALIGNMENT / 解像度: 11.2 Å / ピクセルサイズ(実測値): 2.76 Å / 倍率補正: TMV / 詳細: PROJECTION MATCHING USING SPIDER PACKAGE / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL Target criteria: The X-ray crystallographic structure of the EF-G individual domains were fitted into the cryo-EM map of the 70S*EF-G-UG*GDP*Fusidic acid complex using O. The G' domain within domain ...Target criteria: The X-ray crystallographic structure of the EF-G individual domains were fitted into the cryo-EM map of the 70S*EF-G-UG*GDP*Fusidic acid complex using O. The G' domain within domain I was separately fitted, using a combination of manual rigid-body docking and flexible docking approaches, and taking into consideration both the cryo-EM envelope and the positional constraints imposed by the UG density. X-ray crystallographic structures of the N-terminal domain of protein L11 and C-terminal domain of protein L7/L12 were fitted as rigid bodies. 詳細: METHOD--A COMBINATION OF MANUAL RIGID-BODY DOCKING AND FLEXIBLE DOCKING REFINEMENT PROTOCOL--A COMBINATION OF MANUAL RIGID-BODY DOCKING AND FLEXIBLE DOCKING | ||||||||||||||||||||||||||||
原子モデル構築 |
| ||||||||||||||||||||||||||||
精密化ステップ | サイクル: LAST
|