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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: 5d22 | ||||||
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タイトル | Structure of ovine granulocyte-macrophage colony-stimulating factor | ||||||
![]() | Granulocyte-macrophage colony-stimulating factor | ||||||
![]() | CYTOKINE / Signaling Protein / recombinant proteins / cytokine immunology | ||||||
機能・相同性 | ![]() granulocyte macrophage colony-stimulating factor receptor binding / neutrophil differentiation / positive regulation of interleukin-23 production / granulocyte macrophage colony-stimulating factor receptor complex / granulocyte-macrophage colony-stimulating factor signaling pathway / positive regulation of leukocyte proliferation / myeloid dendritic cell differentiation / cellular response to granulocyte macrophage colony-stimulating factor stimulus / positive regulation of macrophage derived foam cell differentiation / positive regulation of podosome assembly ...granulocyte macrophage colony-stimulating factor receptor binding / neutrophil differentiation / positive regulation of interleukin-23 production / granulocyte macrophage colony-stimulating factor receptor complex / granulocyte-macrophage colony-stimulating factor signaling pathway / positive regulation of leukocyte proliferation / myeloid dendritic cell differentiation / cellular response to granulocyte macrophage colony-stimulating factor stimulus / positive regulation of macrophage derived foam cell differentiation / positive regulation of podosome assembly / monocyte differentiation / macrophage differentiation / cell surface receptor signaling pathway via JAK-STAT / negative regulation of extrinsic apoptotic signaling pathway in absence of ligand / embryonic placenta development / cytokine activity / growth factor activity / cell population proliferation / immune response / negative regulation of DNA-templated transcription / intracellular membrane-bounded organelle / extracellular space 類似検索 - 分子機能 | ||||||
生物種 | ![]() ![]() | ||||||
手法 | ![]() ![]() ![]() | ||||||
![]() | Felix, J. / Savvides, S.N. | ||||||
![]() | ![]() タイトル: Structural basis of GM-CSF and IL-2 sequestration by the viral decoy receptor GIF. 著者: Jan Felix / Eaazhisai Kandiah / Steven De Munck / Yehudi Bloch / Gydo C P van Zundert / Kris Pauwels / Ann Dansercoer / Katka Novanska / Randy J Read / Alexandre M J J Bonvin / Bjorn ...著者: Jan Felix / Eaazhisai Kandiah / Steven De Munck / Yehudi Bloch / Gydo C P van Zundert / Kris Pauwels / Ann Dansercoer / Katka Novanska / Randy J Read / Alexandre M J J Bonvin / Bjorn Vergauwen / Kenneth Verstraete / Irina Gutsche / Savvas N Savvides / ![]() ![]() ![]() ![]() ![]() 要旨: Subversion of the host immune system by viruses is often mediated by molecular decoys that sequester host proteins pivotal to mounting effective immune responses. The widespread mammalian pathogen ...Subversion of the host immune system by viruses is often mediated by molecular decoys that sequester host proteins pivotal to mounting effective immune responses. The widespread mammalian pathogen parapox Orf virus deploys GIF, a member of the poxvirus immune evasion superfamily, to antagonize GM-CSF (granulocyte macrophage colony-stimulating factor) and IL-2 (interleukin-2), two pleiotropic cytokines of the mammalian immune system. However, structural and mechanistic insights into the unprecedented functional duality of GIF have remained elusive. Here we reveal that GIF employs a dimeric binding platform that sequesters two copies of its target cytokines with high affinity and slow dissociation kinetics to yield distinct complexes featuring mutually exclusive interaction footprints. We illustrate how GIF serves as a competitive decoy receptor by leveraging binding hotspots underlying the cognate receptor interactions of GM-CSF and IL-2, without sharing any structural similarity with the cytokine receptors. Our findings contribute to the tracing of novel molecular mimicry mechanisms employed by pathogenic viruses. | ||||||
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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 | ![]() | 111 KB | 表示 | ![]() |
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PDB形式 | ![]() | 84.9 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 | ![]() | 452.1 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 454 KB | 表示 | |
XML形式データ | ![]() | 12.2 KB | 表示 | |
CIF形式データ | ![]() | 16.4 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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要素
#1: タンパク質 | 分子量: 14426.386 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() #2: 化合物 | #3: 化合物 | ChemComp-EDO / | #4: 水 | ChemComp-HOH / | Has protein modification | Y | |
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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: 2.42 Å3/Da / 溶媒含有率: 49.2 % |
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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: 8.5 詳細: 0.2 M sodium acetate trihydrate 0.1 M TRIS hydrochloride pH 8.5 30% w/v PEG 4000 |
-データ収集
回折 | 平均測定温度: 100 K |
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放射光源 | 由来: ![]() ![]() ![]() |
検出器 | タイプ: DECTRIS PILATUS 6M / 検出器: PIXEL / 日付: 2012年11月16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: 1.239 Å / 相対比: 1 |
反射 | 解像度: 1.99→38.51 Å / Num. all: 18842 / Num. obs: 18252 / % possible obs: 96.9 % / 冗長度: 3.28 % / Rsym value: 0.129 / Net I/σ(I): 8.17 |
反射 シェル | 解像度: 1.99→2.11 Å / 冗長度: 3.14 % / Mean I/σ(I) obs: 2.12 / Rsym value: 0.732 / % possible all: 94 |
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解析
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精密化 | 構造決定の手法: ![]() 開始モデル: 2GMF 解像度: 1.994→38.51 Å / SU ML: 0.27 / 交差検証法: FREE R-VALUE / σ(F): 1.99 / 位相誤差: 26.09 / 立体化学のターゲット値: ML
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溶媒の処理 | 減衰半径: 0.9 Å / VDWプローブ半径: 1.11 Å / 溶媒モデル: FLAT BULK SOLVENT MODEL | |||||||||||||||||||||||||||||||||||||||||||||||||
精密化ステップ | サイクル: LAST / 解像度: 1.994→38.51 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: 3.6389 Å / Origin y: -18.0912 Å / Origin z: -9.3264 Å
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精密化 TLSグループ | Selection details: all |