+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-3753 | |||||||||
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タイトル | Negative stain 3D single particle reconstruction of the isolated surface adhesin P140/P110 complex of Mycoplasma genitalium. | |||||||||
マップデータ | Negative stain 3D single particle reconstruction of the isolated surface adhesin P140/P110 complex of Mycoplasma genitalium. | |||||||||
試料 |
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生物種 | Mycoplasma genitalium G37 (バクテリア) | |||||||||
手法 | 単粒子再構成法 / ネガティブ染色法 / 解像度: 19.0 Å | |||||||||
データ登録者 | Scheffer MP | |||||||||
引用 | ジャーナル: Mol Microbiol / 年: 2017 タイトル: Structural characterization of the NAP; the major adhesion complex of the human pathogen Mycoplasma genitalium. 著者: Margot P Scheffer / Luis Gonzalez-Gonzalez / Anja Seybert / Mercè Ratera / Michael Kunz / José M Valpuesta / Ignacio Fita / Enrique Querol / Jaume Piñol / Jaime Martín-Benito / Achilleas S Frangakis / 要旨: Mycoplasma genitalium, the causative agent of non-gonococcal urethritis and pelvic inflammatory disease in humans, is a small eubacterium that lacks a peptidoglycan cell wall. On the surface of its ...Mycoplasma genitalium, the causative agent of non-gonococcal urethritis and pelvic inflammatory disease in humans, is a small eubacterium that lacks a peptidoglycan cell wall. On the surface of its plasma membrane is the major surface adhesion complex, known as NAP that is essential for adhesion and gliding motility of the organism. Here, we have performed cryo-electron tomography of intact cells and detergent permeabilized M. genitalium cell aggregates, providing sub-tomogram averages of free and cell-attached NAPs respectively, revealing a tetrameric complex with two-fold rotational (C2) symmetry. Each NAP has two pairs of globular lobes (named α and β lobes), arranged as a dimer of heterodimers with each lobe connected by a stalk to the cell membrane. The β lobes are larger than the α lobes by 20%. Classification of NAPs showed that the complex can tilt with respect to the cell membrane. A protein complex containing exclusively the proteins P140 and P110, was purified from M. genitalium and was structurally characterized by negative-stain single particle EM reconstruction. The close structural similarity found between intact NAPs and the isolated P140/P110 complexes, shows that dimers of P140/P110 heterodimers are the only components of the extracellular region of intact NAPs in M. genitalium. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_3753.map.gz | 954.5 KB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-3753-v30.xml emd-3753.xml | 8.8 KB 8.8 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_3753.png | 78.1 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-3753 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-3753 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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-マップ
ファイル | ダウンロード / ファイル: emd_3753.map.gz / 形式: CCP4 / 大きさ: 1 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Negative stain 3D single particle reconstruction of the isolated surface adhesin P140/P110 complex of Mycoplasma genitalium. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 4.32 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
-全体 : Negative stain 3D single particle reconstruction of the isolated ...
全体 | 名称: Negative stain 3D single particle reconstruction of the isolated surface adhesin P140/P110 complex of Mycoplasma genitalium. |
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要素 |
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-超分子 #1: Negative stain 3D single particle reconstruction of the isolated ...
超分子 | 名称: Negative stain 3D single particle reconstruction of the isolated surface adhesin P140/P110 complex of Mycoplasma genitalium. タイプ: complex / ID: 1 / 親要素: 0 詳細: NAP complexes were extracted from the cell membranes of a modified M. genitalium G37 strain by using the detergent n-octyl-beta-D-glucopyranoside, where gene mg192 had been extended to ...詳細: NAP complexes were extracted from the cell membranes of a modified M. genitalium G37 strain by using the detergent n-octyl-beta-D-glucopyranoside, where gene mg192 had been extended to include a region coding for a six-histidines tag at the C-terminus end of the P110 protein, the gene product of mg192. |
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由来(天然) | 生物種: Mycoplasma genitalium G37 (バクテリア) |
組換発現 | 生物種: Mycoplasma genitalium G37 (バクテリア) |
分子量 | 実験値: 495 kDa/nm |
-実験情報
-構造解析
手法 | ネガティブ染色法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 7.4 |
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染色 | タイプ: NEGATIVE / 材質: Uranyl Acetate |
-電子顕微鏡法
顕微鏡 | FEI TECNAI F20 |
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電子線 | 加速電圧: 200 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELDBright-field microscopy |
試料ステージ | 試料ホルダーモデル: SIDE ENTRY, EUCENTRIC |
撮影 | フィルム・検出器のモデル: FEI EAGLE (4k x 4k) / 平均電子線量: 100.0 e/Å2 |
実験機器 | モデル: Tecnai F20 / 画像提供: FEI Company |
-画像解析
最終 角度割当 | タイプ: NOT APPLICABLE |
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最終 再構成 | 想定した対称性 - 点群: C2 (2回回転対称) / 解像度のタイプ: BY AUTHOR / 解像度: 19.0 Å / 解像度の算出法: FSC 0.143 CUT-OFF / ソフトウェア - 名称: RELION / 使用した粒子像数: 14375 |