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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: 8yi7 | ||||||
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タイトル | The Cryo-EM structure of IL-12, receptor subunit beta-1 and receptor subunit beta-2 complex, local refinement | ||||||
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![]() | CYTOKINE / IL-12 / IL-12RB1 / IL-12RB2 / receptor complex | ||||||
機能・相同性 | ![]() interleukin-27 binding / interleukin-12 beta subunit binding / late endosome lumen / interleukin-12 alpha subunit binding / interleukin-12 complex / interleukin-23 complex / natural killer cell activation involved in immune response / positive regulation of dendritic cell chemotaxis / positive regulation of natural killer cell activation / positive regulation of natural killer cell mediated cytotoxicity directed against tumor cell target ...interleukin-27 binding / interleukin-12 beta subunit binding / late endosome lumen / interleukin-12 alpha subunit binding / interleukin-12 complex / interleukin-23 complex / natural killer cell activation involved in immune response / positive regulation of dendritic cell chemotaxis / positive regulation of natural killer cell activation / positive regulation of natural killer cell mediated cytotoxicity directed against tumor cell target / negative regulation of vascular endothelial growth factor signaling pathway / negative regulation of blood vessel endothelial cell proliferation involved in sprouting angiogenesis / positive regulation of lymphocyte proliferation / positive regulation of tissue remodeling / positive regulation of smooth muscle cell apoptotic process / positive regulation of NK T cell activation / positive regulation of T-helper 1 type immune response / sexual reproduction / positive regulation of natural killer cell mediated cytotoxicity / positive regulation of mononuclear cell proliferation / interleukin-12 receptor complex / interleukin-23 receptor complex / interleukin-12 receptor binding / interleukin-23-mediated signaling pathway / Interleukin-23 signaling / positive regulation of T-helper 17 type immune response / interleukin-12-mediated signaling pathway / positive regulation of NK T cell proliferation / T-helper cell differentiation / positive regulation of memory T cell differentiation / Interleukin-12 signaling / Interleukin-35 Signalling / positive regulation of natural killer cell proliferation / positive regulation of osteoclast differentiation / negative regulation of interleukin-17 production / cytokine receptor activity / natural killer cell activation / response to UV-B / positive regulation of granulocyte macrophage colony-stimulating factor production / positive regulation of tyrosine phosphorylation of STAT protein / T-helper 1 type immune response / negative regulation of interleukin-10 production / defense response to protozoan / Interleukin-10 signaling / cytokine binding / positive regulation of interleukin-17 production / positive regulation of activated T cell proliferation / positive regulation of interleukin-10 production / cell surface receptor signaling pathway via JAK-STAT / negative regulation of protein secretion / positive regulation of T-helper 17 cell lineage commitment / positive regulation of T cell proliferation / T cell proliferation / coreceptor activity / extrinsic apoptotic signaling pathway / positive regulation of defense response to virus by host / positive regulation of interleukin-12 production / positive regulation of cell adhesion / regulation of cytokine production / cytokine activity / growth factor activity / negative regulation of smooth muscle cell proliferation / negative regulation of inflammatory response to antigenic stimulus / positive regulation of non-canonical NF-kappaB signal transduction / cytokine-mediated signaling pathway / response to virus / cellular response to virus / positive regulation of T cell mediated cytotoxicity / cellular response to type II interferon / positive regulation of type II interferon production / positive regulation of inflammatory response / positive regulation of tumor necrosis factor production / cell migration / cellular response to lipopolysaccharide / defense response to Gram-negative bacterium / Interleukin-4 and Interleukin-13 signaling / defense response to virus / response to lipopolysaccharide / receptor complex / cell surface receptor signaling pathway / defense response to Gram-positive bacterium / immune response / endoplasmic reticulum lumen / protein heterodimerization activity / external side of plasma membrane / positive regulation of cell population proliferation / protein-containing complex binding / protein kinase binding / cell surface / signal transduction / extracellular space / extracellular region / identical protein binding / 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: 3.57 Å | ||||||
![]() | Chen, H.Q. / Ge, X.F. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structure and assembly of the human IL-12 signaling complex. 著者: Huiqin Chen / Xiaofei Ge / Chun Li / Jianwei Zeng / Xinquan Wang / ![]() 要旨: Interleukin (IL)-12 is a heterodimeric pro-inflammatory cytokine. Our cryoelectron microscopy structure determination of human IL-12 in complex with IL-12Rβ1 and IL-12Rβ2 at a resolution of 3. ...Interleukin (IL)-12 is a heterodimeric pro-inflammatory cytokine. Our cryoelectron microscopy structure determination of human IL-12 in complex with IL-12Rβ1 and IL-12Rβ2 at a resolution of 3.75 Å reveals that IL-12Rβ2 primarily interacts with the IL-12p35 subunit via its N-terminal Ig-like domain, while IL-12Rβ1 binds to the p40 subunit with its N-terminal fibronectin III domain. This binding mode of IL-12 with its receptors is similar to that of IL-23 but shows notable differences with other cytokines. Through structural information and biochemical assays, we identified Y62, Y189, and K192 as key residues in IL-12p35, which bind to IL-12Rβ2 with high affinity and mediate IL-12 signal transduction. Furthermore, structural comparisons reveal two distinctive conformational states and structural plasticity of the heterodimeric interface in IL-12. As a result, our study advances our understanding of IL-12 signal initiation and opens up new opportunities for the engineering and therapeutic targeting of IL-12. | ||||||
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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PDBx/mmCIF形式 | ![]() | 147.2 KB | 表示 | ![]() |
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PDB形式 | ![]() | 107.1 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 | ![]() 39311MC ![]() 8xrpC C: 同じ文献を引用 ( M: このデータのモデリングに利用したマップデータ |
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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
-Interleukin-12 subunit ... , 2種, 2分子 AB
#1: タンパク質 | 分子量: 23781.508 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: P29459 |
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#2: タンパク質 | 分子量: 34811.023 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: P29460 |
-Interleukin-12 receptor subunit beta- ... , 2種, 2分子 CD
#3: タンパク質 | 分子量: 34627.477 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: Q99665 |
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#4: タンパク質 | 分子量: 24736.449 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: P42701 |
-糖 , 2種, 2分子 
#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 |
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#6: 糖 | ChemComp-NAG / |
-詳細
研究の焦点であるリガンドがあるか | Y |
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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: the ternary complex of IL-12 with IL-12R beta-1 and IL-12R beta-2 タイプ: COMPLEX / Entity ID: #1-#4 / 由来: RECOMBINANT | |||||||||||||||
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分子量 | 値: 0.120 MDa / 実験値: NO | |||||||||||||||
由来(天然) | 生物種: ![]() | |||||||||||||||
由来(組換発現) | 生物種: ![]() | |||||||||||||||
緩衝液 | pH: 8 | |||||||||||||||
緩衝液成分 |
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試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | |||||||||||||||
試料支持 | グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 | |||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 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): 2000 nm / 最小 デフォーカス(公称値): 500 nm |
撮影 | 電子線照射量: 50 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 3.57 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 332015 / 対称性のタイプ: POINT |