+
データを開く
-
基本情報
登録情報 | ![]() | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | Sub-tomogram average of P116 from Mycoplasma pneumoniae tethered to the mycoplasma membrane (front views only). | |||||||||
![]() | Sub-tomogram average of P116 from Mycoplasma pneumoniae tethered to the mycoplasma membrane (front views only). | |||||||||
![]() |
| |||||||||
![]() | Lipid Shuttle Mycoplasma pneumoniae / LIPID BINDING PROTEIN | |||||||||
生物種 | ![]() | |||||||||
手法 | 電子線トモグラフィー法 / クライオ電子顕微鏡法 | |||||||||
![]() | Manger S | |||||||||
資金援助 | ![]()
| |||||||||
![]() | ![]() タイトル: Essential protein P116 extracts cholesterol and other indispensable lipids for Mycoplasmas. 著者: Lasse Sprankel / David Vizarraga / Jesús Martín / Sina Manger / Jakob Meier-Credo / Marina Marcos / Josep Julve / Noemi Rotllan / Margot P Scheffer / Joan Carles Escolà-Gil / Julian D ...著者: Lasse Sprankel / David Vizarraga / Jesús Martín / Sina Manger / Jakob Meier-Credo / Marina Marcos / Josep Julve / Noemi Rotllan / Margot P Scheffer / Joan Carles Escolà-Gil / Julian D Langer / Jaume Piñol / Ignacio Fita / Achilleas S Frangakis / ![]() ![]() 要旨: Mycoplasma pneumoniae, responsible for approximately 30% of community-acquired human pneumonia, needs to extract lipids from the host environment for survival and proliferation. Here, we report a ...Mycoplasma pneumoniae, responsible for approximately 30% of community-acquired human pneumonia, needs to extract lipids from the host environment for survival and proliferation. Here, we report a comprehensive structural and functional analysis of the previously uncharacterized protein P116 (MPN_213). Single-particle cryo-electron microscopy of P116 reveals a homodimer presenting a previously unseen fold, forming a huge hydrophobic cavity, which is fully accessible to solvent. Lipidomics analysis shows that P116 specifically extracts lipids such as phosphatidylcholine, sphingomyelin and cholesterol. Structures of different conformational states reveal the mechanism by which lipids are extracted. This finding immediately suggests a way to control Mycoplasma infection by interfering with lipid uptake. | |||||||||
履歴 |
|
-
構造の表示
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 | ![]() | 7.1 MB | ![]() | |
---|---|---|---|---|
ヘッダ (付随情報) | ![]() ![]() | 10.5 KB 10.5 KB | 表示 表示 | ![]() |
画像 | ![]() | 51.5 KB | ||
Filedesc metadata | ![]() | 5 KB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 347.8 KB | 表示 | ![]() |
---|---|---|---|---|
文書・詳細版 | ![]() | 347.4 KB | 表示 | |
XML形式データ | ![]() | 5.7 KB | 表示 | |
CIF形式データ | ![]() | 6.4 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
-
リンク
EMDBのページ | ![]() ![]() |
---|
-
マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | Sub-tomogram average of P116 from Mycoplasma pneumoniae tethered to the mycoplasma membrane (front views only). | ||||||||||||||||||||||||||||||||
投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 4.44 Å | ||||||||||||||||||||||||||||||||
密度 |
| ||||||||||||||||||||||||||||||||
対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
|
-添付データ
-
試料の構成要素
-全体 : Sub-tomogram average of P116 from Mycoplasma pneumoniae tethered ...
全体 | 名称: Sub-tomogram average of P116 from Mycoplasma pneumoniae tethered to the mycoplasma membrane (front views only). |
---|---|
要素 |
|
-超分子 #1: Sub-tomogram average of P116 from Mycoplasma pneumoniae tethered ...
超分子 | 名称: Sub-tomogram average of P116 from Mycoplasma pneumoniae tethered to the mycoplasma membrane (front views only). タイプ: complex / ID: 1 / 親要素: 0 |
---|---|
由来(天然) | 生物種: ![]() |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
---|---|
![]() | 電子線トモグラフィー法 |
試料の集合状態 | particle |
-
試料調製
緩衝液 | pH: 7.4 / 詳細: PBS |
---|---|
グリッド | モデル: C-flat-1.2/1.3 / 材質: COPPER / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 45 sec. |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 4 K / 装置: FEI VITROBOT MARK IV 詳細: A 3.5 uL drop was applied to a (45 s) glow-discharged R1.2/1.3 C-flat grid (Electron Microscopy Science) with a 4 nm carbon-coat, and plunge-frozen in liquid ethane at 100 percent relative ...詳細: A 3.5 uL drop was applied to a (45 s) glow-discharged R1.2/1.3 C-flat grid (Electron Microscopy Science) with a 4 nm carbon-coat, and plunge-frozen in liquid ethane at 100 percent relative humidity, 4degC, and a nominal blot force of -1, with a wait and blotting time of 8-12 s.. |
詳細 | Tomography on intact M. pneumoniae cells. |
切片作成 | その他: NO SECTIONING |
-
電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
---|---|
詳細 | Tilt-series were recorded using SerialEM v4.0.1423 at a nominal magnification of 81,000 (1.112 A per pixel) in nanoprobe EFTEM mode at 300 kV with a Titan Krios G2 (Thermo Fischer Scientific) electron microscope equipped with a BioQuantum-K3 imaging filter (Gatan), operated in zero-loss peak mode with 20 eV energy slit width, and a K3 Summit detector (Gatan). The total dose per tomogram was 120 e-/A2, and the tilt series covered an angular range from -60deg to 60deg with an angular increment of 3deg and a defocus set at -3 um. |
撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 平均電子線量: 3.0 e/Å2 詳細: The total dose per tomogram was 120 e-/A2, and the tilt series covered an angular range from -60deg to 60deg with an angular increment of 3deg |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 2.7 mm / 最大 デフォーカス(公称値): 3.0 µm / 最小 デフォーカス(公称値): 3.0 µm / 倍率(公称値): 81000 |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
-
画像解析
最終 再構成 | ソフトウェア - 名称: RELION (ver. 3,1) 詳細: Resolution approx. 30A. Only front views were used (and only the front view of the sub-tomogram average was analyzed. 使用した粒子像数: 41 |
---|