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基本情報
登録情報 | データベース: PDB / ID: 8epa | ||||||
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タイトル | Structure of interleukin receptor common gamma chain (IL2Rgamma) in complex with two antibodies | ||||||
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![]() | IMMUNE SYSTEM / interleukin signaling / lymphocyte maturation / blocking antibody / immunoglobulin | ||||||
機能・相同性 | ![]() mature B cell differentiation / interleukin-15 receptor activity / interleukin-2 binding / CD4-positive, CD25-positive, alpha-beta regulatory T cell differentiation / positive regulation of T cell differentiation in thymus / lymphocyte differentiation / Interleukin-9 signaling / Interleukin-21 signaling / interleukin-7-mediated signaling pathway / interleukin-9-mediated signaling pathway ...mature B cell differentiation / interleukin-15 receptor activity / interleukin-2 binding / CD4-positive, CD25-positive, alpha-beta regulatory T cell differentiation / positive regulation of T cell differentiation in thymus / lymphocyte differentiation / Interleukin-9 signaling / Interleukin-21 signaling / interleukin-7-mediated signaling pathway / interleukin-9-mediated signaling pathway / interleukin-4-mediated signaling pathway / positive regulation of CD4-positive, CD25-positive, alpha-beta regulatory T cell differentiation / interleukin-2-mediated signaling pathway / interleukin-15-mediated signaling pathway / cellular homeostasis / STAT3 nuclear events downstream of ALK signaling / Interleukin-15 signaling / cytokine receptor activity / Interleukin-2 signaling / positive regulation of B cell differentiation / positive regulation of immunoglobulin production / cytokine binding / Interleukin receptor SHC signaling / coreceptor activity / Interleukin-7 signaling / positive regulation of phagocytosis / cytokine-mediated signaling pathway / T cell differentiation in thymus / RAF/MAP kinase cascade / Interleukin-4 and Interleukin-13 signaling / gene expression / receptor complex / endosome / immune response / external side of plasma membrane / cell surface / signal transduction / nucleoplasm / membrane / plasma membrane / cytosol 類似検索 - 分子機能 | ||||||
生物種 | ![]() ![]() ![]() | ||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.4 Å | ||||||
![]() | Franklin, M.C. / Romero Hernandez, A. | ||||||
資金援助 | 1件
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![]() | ![]() タイトル: Blocking common γ chain cytokine signaling ameliorates T cell-mediated pathogenesis in disease models. 著者: Audrey Le Floc'h / Kirsten Nagashima / Dylan Birchard / George Scott / Li-Hong Ben / Dharani Ajithdoss / Kaitlyn Gayvert / Annabel Romero Hernandez / Olivier Herbin / Amanda Tay / Pamela ...著者: Audrey Le Floc'h / Kirsten Nagashima / Dylan Birchard / George Scott / Li-Hong Ben / Dharani Ajithdoss / Kaitlyn Gayvert / Annabel Romero Hernandez / Olivier Herbin / Amanda Tay / Pamela Farrales / Chandrashekhar K Korgaonkar / Hao Pan / Sweta Shah / Vishal Kamat / Ishita Chatterjee / Jon Popke / Adelekan Oyejide / Wei Keat Lim / Jee H Kim / Tammy Huang / Matthew Franklin / William Olson / Thomas Norton / Lorah Perlee / George D Yancopoulos / Andrew J Murphy / Matthew A Sleeman / Jamie M Orengo / ![]() 要旨: The common γ chain (γc; IL-2RG) is a subunit of the interleukin (IL) receptors for the γc cytokines IL-2, IL-4, IL-7, IL-9, IL-15, and IL-21. The lack of appropriate neutralizing antibodies ...The common γ chain (γc; IL-2RG) is a subunit of the interleukin (IL) receptors for the γc cytokines IL-2, IL-4, IL-7, IL-9, IL-15, and IL-21. The lack of appropriate neutralizing antibodies recognizing IL-2RG has made it difficult to thoroughly interrogate the role of γc cytokines in inflammatory and autoimmune disease settings. Here, we generated a γc cytokine receptor antibody, REGN7257, to determine whether γc cytokines might be targeted for T cell-mediated disease prevention and treatment. Biochemical, structural, and in vitro analysis showed that REGN7257 binds with high affinity to IL-2RG and potently blocks signaling of all γc cytokines. In nonhuman primates, REGN7257 efficiently suppressed T cells without affecting granulocytes, platelets, or red blood cells. Using REGN7257, we showed that γc cytokines drive T cell-mediated disease in mouse models of graft-versus-host disease (GVHD) and multiple sclerosis by affecting multiple aspects of the pathogenic response. We found that our xenogeneic GVHD mouse model recapitulates hallmarks of acute and chronic GVHD, with T cell expansion/infiltration into tissues and liver fibrosis, as well as hallmarks of immune aplastic anemia, with bone marrow aplasia and peripheral cytopenia. Our findings indicate that γc cytokines contribute to GVHD and aplastic anemia pathology by promoting these characteristic features. By demonstrating that broad inhibition of γc cytokine signaling with REGN7257 protects from immune-mediated disorders, our data provide evidence of γc cytokines as key drivers of pathogenic T cell responses, offering a potential strategy for the management of T cell-mediated diseases. | ||||||
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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 | ![]() | 138.2 KB | 表示 | ![]() |
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PDB形式 | ![]() | 98 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 | ![]() | 1.5 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.5 MB | 表示 | |
XML形式データ | ![]() | 32.5 KB | 表示 | |
CIF形式データ | ![]() | 45.2 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 | ![]() 28523MC M: このデータのモデリングに利用したマップデータ 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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要素
-抗体 , 4種, 4分子 HLAB
#2: 抗体 | 分子量: 23607.463 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() |
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#3: 抗体 | 分子量: 23541.125 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() |
#4: 抗体 | 分子量: 23323.006 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() |
#5: 抗体 | 分子量: 23247.803 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() |
-タンパク質 / 糖 , 2種, 2分子 I
#1: タンパク質 | 分子量: 31617.098 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P31785 |
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#6: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose |
-詳細
研究の焦点であるリガンドがあるか | N |
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Has protein modification | Y |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: Complex of IL2Rgamma extracellular domain with Fab fragments of antibodies REGN7257 and REGN9432 タイプ: COMPLEX / Entity ID: #1-#5 / 由来: RECOMBINANT |
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由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.5 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2400 nm / 最小 デフォーカス(公称値): 1400 nm |
撮影 | 電子線照射量: 40 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
ソフトウェア |
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EMソフトウェア | 名称: EPU / カテゴリ: 画像取得 | ||||||||||||||||||||||||
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.4 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 435563 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 114.63 Å2 | ||||||||||||||||||||||||
拘束条件 |
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