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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 9hqk | ||||||
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タイトル | Bacteroides fragilis lipoprotein XusB bound to ferrichrome | ||||||
![]() | XusB | ||||||
![]() | METAL TRANSPORT / Bacteroides / lipoprotein / xenosiderophore / iron | ||||||
機能・相同性 | Protein of unknown function DUF4374 / Domain of unknown function (DUF4374) / Prokaryotic membrane lipoprotein lipid attachment site profile. / FERRICHROME / : / Uncharacterized protein![]() | ||||||
生物種 | ![]() | ||||||
手法 | ![]() ![]() ![]() | ||||||
![]() | Silale, A. / van den Berg, B. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural basis of iron piracy by human gut . 著者: Augustinas Silale / Yung Li Soo / Hannah Mark / Rachel N Motz / Arnaud Baslé / Elizabeth M Nolan / Bert van den Berg / ![]() ![]() 要旨: Iron is an essential element that can be growth-limiting in microbial communities, particularly those present within host organisms. To acquire iron, many bacteria secrete siderophores, secondary ...Iron is an essential element that can be growth-limiting in microbial communities, particularly those present within host organisms. To acquire iron, many bacteria secrete siderophores, secondary metabolites that chelate ferric iron. These iron chelates can be transported back into the cell via TonB-dependent transporters in the outer membrane, followed by intracellular liberation of the iron. Pathogenic and produce siderophores during gut infection. In response to iron starvation, the human gut symbiont upregulates an iron piracy system, XusABC, which steals iron-bound siderophores from the invading pathogens. Here, we investigated the molecular details of xenosiderophore uptake across the outer membrane by the XusAB complex. Our crystal and cryogenic electron microscopy structures explain how the XusB lipoprotein recognises iron-bound xenosiderophores and passes them on to the XusA TonB-dependent transporter. Moreover, we show that Xus homologues can transport a variety of siderophores with different iron-chelating functional groups. #1: ジャーナル: Acta Crystallogr D Struct Biol / 年: 2019 タイトル: Macromolecular structure determination using X-rays, neutrons and electrons: recent developments in Phenix. 著者: Dorothee Liebschner / Pavel V Afonine / Matthew L Baker / Gábor Bunkóczi / Vincent B Chen / Tristan I Croll / Bradley Hintze / Li Wei Hung / Swati Jain / Airlie J McCoy / Nigel W Moriarty / ...著者: Dorothee Liebschner / Pavel V Afonine / Matthew L Baker / Gábor Bunkóczi / Vincent B Chen / Tristan I Croll / Bradley Hintze / Li Wei Hung / Swati Jain / Airlie J McCoy / Nigel W Moriarty / Robert D Oeffner / Billy K Poon / Michael G Prisant / Randy J Read / Jane S Richardson / David C Richardson / Massimo D Sammito / Oleg V Sobolev / Duncan H Stockwell / Thomas C Terwilliger / Alexandre G Urzhumtsev / Lizbeth L Videau / Christopher J Williams / Paul D Adams / ![]() ![]() ![]() 要旨: Diffraction (X-ray, neutron and electron) and electron cryo-microscopy are powerful methods to determine three-dimensional macromolecular structures, which are required to understand biological ...Diffraction (X-ray, neutron and electron) and electron cryo-microscopy are powerful methods to determine three-dimensional macromolecular structures, which are required to understand biological processes and to develop new therapeutics against diseases. The overall structure-solution workflow is similar for these techniques, but nuances exist because the properties of the reduced experimental data are different. Software tools for structure determination should therefore be tailored for each method. Phenix is a comprehensive software package for macromolecular structure determination that handles data from any of these techniques. Tasks performed with Phenix include data-quality assessment, map improvement, model building, the validation/rebuilding/refinement cycle and deposition. Each tool caters to the type of experimental data. The design of Phenix emphasizes the automation of procedures, where possible, to minimize repetitive and time-consuming manual tasks, while default parameters are chosen to encourage best practice. A graphical user interface provides access to many command-line features of Phenix and streamlines the transition between programs, project tracking and re-running of previous tasks. | ||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 347.3 KB | 表示 | ![]() |
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PDB形式 | ![]() | 240.5 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 2.9 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 3 MB | 表示 | |
XML形式データ | ![]() | 43.2 KB | 表示 | |
CIF形式データ | ![]() | 53.7 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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リンク
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集合体
登録構造単位 | ![]()
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単位格子 |
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非結晶学的対称性 (NCS) | NCSドメイン:
NCSドメイン領域: Ens-ID: ens_1
NCS oper:
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要素
#1: タンパク質 | 分子量: 45484.863 Da / 分子数: 4 / 由来タイプ: 組換発現 由来: (組換発現) ![]() 遺伝子: BF9343_4228 / 発現宿主: ![]() ![]() #2: 化合物 | ChemComp-FCE / #3: 化合物 | ChemComp-FE / 研究の焦点であるリガンドがあるか | Y | Has protein modification | N | |
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-実験情報
-実験
実験 | 手法: ![]() |
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試料調製
結晶 | マシュー密度: 2.17 Å3/Da / 溶媒含有率: 43.27 % |
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結晶化 | 温度: 293 K / 手法: 蒸気拡散法, シッティングドロップ法 / pH: 7.5 詳細: 0.02 M Magnesium chloride hexahydrate, 0.1 M HEPES 7.5, 22 % w/v Poly(acrylic acid sodium salt) 5100 |
-データ収集
回折 | 平均測定温度: 100 K / Serial crystal experiment: N |
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放射光源 | 由来: ![]() ![]() ![]() |
検出器 | タイプ: DECTRIS EIGER2 XE 16M / 検出器: PIXEL / 日付: 2024年4月15日 |
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 | 波長: 0.9686 Å / 相対比: 1 |
反射 | 解像度: 3.32→58.71 Å / Num. obs: 23146 / % possible obs: 100 % / 冗長度: 7.1 % / Biso Wilson estimate: 55.9 Å2 / CC1/2: 0.981 / Rmerge(I) obs: 0.29 / Rpim(I) all: 0.116 / Net I/σ(I): 5.3 |
反射 シェル | 解像度: 3.32→3.59 Å / Rmerge(I) obs: 0.812 / Mean I/σ(I) obs: 2.4 / Num. unique obs: 4780 / CC1/2: 0.862 / Rpim(I) all: 0.318 / % possible all: 100 |
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解析
ソフトウェア |
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精密化 | 構造決定の手法: ![]() 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2
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溶媒の処理 | 減衰半径: 0.9 Å / VDWプローブ半径: 1.1 Å / 溶媒モデル: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 51.06 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化ステップ | サイクル: LAST / 解像度: 3.32→58.71 Å
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拘束条件 |
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Refine LS restraints NCS |
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LS精密化 シェル |
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