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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: 8uvk | ||||||
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タイトル | CosR DNA bound form II | ||||||
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![]() | DNA BINDING PROTEIN/DNA / CosR / transcriptional regulator / Campylobacter jejuni / DNA BINDING PROTEIN / DNA BINDING PROTEIN-DNA complex | ||||||
機能・相同性 | ![]() phosphorelay response regulator activity / protein-DNA complex / transcription cis-regulatory region binding / regulation of DNA-templated transcription / cytosol 類似検索 - 分子機能 | ||||||
生物種 | ![]() ![]() | ||||||
手法 | ![]() ![]() ![]() | ||||||
![]() | Zhang, Z. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural basis of DNA recognition of the CosR regulator. 著者: Zhemin Zhang / Yuqi Yan / Jinji Pang / Lei Dai / Qijing Zhang / Edward W Yu / ![]() 要旨: is a foodborne pathogen commonly found in the intestinal tracts of animals. This pathogen is a leading cause of gastroenteritis in humans. Besides its highly infectious nature, is increasingly ... is a foodborne pathogen commonly found in the intestinal tracts of animals. This pathogen is a leading cause of gastroenteritis in humans. Besides its highly infectious nature, is increasingly resistant to a number of clinically administrated antibiotics. As a consequence, the Centers for Disease Control and Prevention has designated antibiotic-resistant as a serious antibiotic resistance threat in the United States. The CosR regulator is essential to the viability of this bacterium and is responsible for regulating the expression of a number of oxidative stress defense enzymes. Importantly, it also modulates the expression of the CmeABC multidrug efflux system, the most predominant and clinically important system in that mediates resistance to multiple antimicrobials. Here, we report structures of apo-CosR and CosR bound with a 21 bp DNA sequence located at the promotor region using both single-particle cryo-electron microscopy and X-ray crystallography. These structures allow us to propose a novel mechanism for CosR regulation that involves a long-distance conformational coupling and rearrangement of the secondary structural elements of the regulator to bind target DNA. IMPORTANCE: has emerged as an antibiotic-resistant threat worldwide. CosR is an essential regulator for this bacterium and is important for adaptation to various stresses. Here, we describe the ...IMPORTANCE: has emerged as an antibiotic-resistant threat worldwide. CosR is an essential regulator for this bacterium and is important for adaptation to various stresses. Here, we describe the structural basis of CosR binding to target DNA as determined by cryo-electron microscopy and X-ray crystallography. Since CosR is a potential target for intervention, our studies may facilitate the development of novel therapeutics to combat infection. | ||||||
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 | ![]() | 257.6 KB | 表示 | ![]() |
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PDB形式 | ![]() | 181.6 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 | ![]() | 457.3 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 465.1 KB | 表示 | |
XML形式データ | ![]() | 19.5 KB | 表示 | |
CIF形式データ | ![]() | 26.5 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 8uuzC ![]() 8uvxC C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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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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要素
#1: タンパク質 | 分子量: 25561.270 Da / 分子数: 2 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: hsrA / 発現宿主: ![]() ![]() #2: DNA鎖 | | 分子量: 6441.204 Da / 分子数: 1 / 由来タイプ: 合成 由来: (合成) ![]() ![]() #3: DNA鎖 | | 分子量: 6437.236 Da / 分子数: 1 / 由来タイプ: 合成 由来: (合成) ![]() ![]() #4: 化合物 | ChemComp-PEG / | #5: 水 | ChemComp-HOH / | 研究の焦点であるリガンドがあるか | 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: 2.74 Å3/Da / 溶媒含有率: 55.17 % |
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結晶化 | 温度: 298 K / 手法: 蒸気拡散法, シッティングドロップ法 詳細: 0.03 M Magnesium chloride, 0.03 M Calcium chloride, 0.1 M MES ph6.5, 40% v/v Ethylene glycol, 20% w/v PEG 8000 |
-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 X 16M / 検出器: PIXEL / 日付: 2022年12月1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: 0.9792 Å / 相対比: 1 |
反射 | 解像度: 2.21→65.69 Å / Num. obs: 33515 / % possible obs: 96.38 % / 冗長度: 1.8 % / Biso Wilson estimate: 66.8 Å2 / CC1/2: 0.996 / Net I/σ(I): 9.85 |
反射 シェル | 解像度: 2.21→2.289 Å / Num. unique obs: 3406 / CC1/2: 0.673 |
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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: 86.06 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化ステップ | サイクル: LAST / 解像度: 2.21→65.69 Å
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拘束条件 |
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LS精密化 シェル |
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精密化 TLS | 手法: refined / Origin x: 6.56125315163 Å / Origin y: 12.5737585905 Å / Origin z: 31.992625404 Å
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精密化 TLSグループ | Selection details: all |