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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: 9bpu | |||||||||||||||||||||||||||||||||||||||
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タイトル | Structure of the IFN-lambda4/IFN-lambdaR1/IL-10Rbeta receptor complex with an engineered IL-10Rbeta | |||||||||||||||||||||||||||||||||||||||
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![]() | CYTOKINE / INTERFERON / CYTOKINE RECEPTOR / TYPE III INTERFERON | |||||||||||||||||||||||||||||||||||||||
機能・相同性 | ![]() interleukin-10 receptor activity / response to type III interferon / interleukin-28 receptor complex / mucosal immune response / tyrosine phosphorylation of STAT protein / positive regulation of cellular respiration / type III interferon-mediated signaling pathway / interleukin-10-mediated signaling pathway / regulation of defense response to virus by host / cytokine receptor activity ...interleukin-10 receptor activity / response to type III interferon / interleukin-28 receptor complex / mucosal immune response / tyrosine phosphorylation of STAT protein / positive regulation of cellular respiration / type III interferon-mediated signaling pathway / interleukin-10-mediated signaling pathway / regulation of defense response to virus by host / cytokine receptor activity / Other interleukin signaling / Interleukin-20 family signaling / Interleukin-10 signaling / coreceptor activity / cytokine activity / positive regulation of receptor signaling pathway via JAK-STAT / cytokine-mediated signaling pathway / positive regulation of immune response / cellular response to virus / signaling receptor activity / defense response to virus / immune response / inflammatory response / signaling receptor binding / negative regulation of cell population proliferation / innate immune response / signal transduction / extracellular space / membrane / plasma membrane / cytoplasm 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: 3.26 Å | |||||||||||||||||||||||||||||||||||||||
![]() | Zhang, B. / Grubbe, W.S. / Mendoza, J.L. / Zhao, M. | |||||||||||||||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural studies of the IFNλ4 receptor complex using cryoEM enabled by protein engineering. 著者: William S Grubbe / Bixia Zhang / Aileen Kauffman / Fabian Byléhn / Kasia Padoł / Hae-Gwang Jung / Seung Bum Park / Jessica M Priest / Engin Özkan / Juan J de Pablo / T Jake Liang / Minglei ...著者: William S Grubbe / Bixia Zhang / Aileen Kauffman / Fabian Byléhn / Kasia Padoł / Hae-Gwang Jung / Seung Bum Park / Jessica M Priest / Engin Özkan / Juan J de Pablo / T Jake Liang / Minglei Zhao / Juan L Mendoza / ![]() 要旨: IFNλ4 has posed a conundrum in human immunology since its discovery in 2013, with its expression linked to complications with viral clearance. While genetic and cellular studies revealed the ...IFNλ4 has posed a conundrum in human immunology since its discovery in 2013, with its expression linked to complications with viral clearance. While genetic and cellular studies revealed the detrimental effects of IFNλ4 expression, extensive structural and functional characterization has been limited by the inability to express and purify the protein, complicating explanations of its paradoxical behavior. In this work, we report a method for robust production of IFNλ4. We then use yeast surface display to affinity-mature IL10Rβ and solve the 72 kilodalton structures of IFNλ4 (3.26 Å) and IFNλ3 (3.00 Å) in complex with their receptors IFNλR1 and IL10Rβ using cryogenic electron microscopy. Comparison of the structures highlights differences in receptor engagement and reveals a distinct 12-degree rotation in overall receptor geometry, providing a potential mechanistic explanation for differences in cell signaling, downstream gene induction, and antiviral activities. Further, we perform a structural analysis using molecular modeling and simulation to identify a unique region of IFNλ4 that, when replaced, enables secretion of the protein from cells. These findings provide a structural and functional understanding of the IFNλ4 protein and enable future comprehensive studies towards correcting IFNλ4 dysfunction in large populations of affected patients. | |||||||||||||||||||||||||||||||||||||||
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 | ![]() | 123.6 KB | 表示 | ![]() |
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PDB形式 | ![]() | 91.5 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 44790MC ![]() 9bpvC 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
#1: タンパク質 | 分子量: 19219.160 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#2: タンパク質 | 分子量: 24773.643 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
#3: タンパク質 | 分子量: 23628.096 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
#4: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose |
#5: 多糖 | beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta- ...beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose |
研究の焦点であるリガンドがあるか | N |
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: 2D ARRAY / 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: Structure of the IFN-lambda4/IFN-lambdaR1/IL-10Rbeta receptor complex with an engineered IL-10Rbeta タイプ: COMPLEX / Entity ID: #1-#3 / 由来: RECOMBINANT |
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分子量 | 値: .071742 MDa / 実験値: YES |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 8.3 |
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): 2500 nm / 最小 デフォーカス(公称値): 900 nm |
撮影 | 電子線照射量: 60 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
EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING ONLY | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.26 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 205340 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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