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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: 8vse | |||||||||||||||||||||||||||||||||||||||||||||
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| タイトル | Cryo-EM structure of human CD45 extracellular region in complex with adenoviral protein E3/49K | |||||||||||||||||||||||||||||||||||||||||||||
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キーワード | IMMUNE SYSTEM / Complex / T cell signaling / Viral suppression | |||||||||||||||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報plasma membrane raft distribution / positive regulation of antigen receptor-mediated signaling pathway / alpha-beta T cell proliferation / positive regulation of hematopoietic stem cell migration / negative regulation of cytokine-mediated signaling pathway / negative regulation of interleukin-4-mediated signaling pathway / positive regulation of Fc receptor mediated stimulatory signaling pathway / negative regulation of cell adhesion involved in substrate-bound cell migration / membrane microdomain / regulation of T cell receptor signaling pathway ...plasma membrane raft distribution / positive regulation of antigen receptor-mediated signaling pathway / alpha-beta T cell proliferation / positive regulation of hematopoietic stem cell migration / negative regulation of cytokine-mediated signaling pathway / negative regulation of interleukin-4-mediated signaling pathway / positive regulation of Fc receptor mediated stimulatory signaling pathway / negative regulation of cell adhesion involved in substrate-bound cell migration / membrane microdomain / regulation of T cell receptor signaling pathway / regulation of interleukin-8 production / DN2 thymocyte differentiation / negative regulation of microglial cell activation / negative regulation of T cell mediated cytotoxicity / Other semaphorin interactions / positive regulation of humoral immune response mediated by circulating immunoglobulin / cell cycle phase transition / transmembrane receptor protein tyrosine phosphatase activity / natural killer cell differentiation / stem cell development / positive regulation of alpha-beta T cell proliferation / gamma-delta T cell differentiation / positive regulation of gamma-delta T cell differentiation / positive regulation of isotype switching to IgG isotypes / negative thymic T cell selection / negative regulation of receptor signaling pathway via JAK-STAT / bleb / dephosphorylation / regulation of phagocytosis / positive thymic T cell selection / response to aldosterone / heparan sulfate proteoglycan binding / bone marrow development / positive regulation of protein kinase activity / protein tyrosine kinase inhibitor activity / positive regulation of extrinsic apoptotic signaling pathway / heterotypic cell-cell adhesion / protein dephosphorylation / ankyrin binding / negative regulation of interleukin-2 production / leukocyte cell-cell adhesion / positive regulation of immunoglobulin production / spectrin binding / positive regulation of stem cell proliferation / Phosphorylation of CD3 and TCR zeta chains / B cell proliferation / T cell differentiation / hematopoietic progenitor cell differentiation / negative regulation of protein kinase activity / positive regulation of interleukin-2 production / positive regulation of B cell proliferation / extrinsic apoptotic signaling pathway / release of sequestered calcium ion into cytosol / protein-tyrosine-phosphatase / protein tyrosine phosphatase activity / positive regulation of T cell proliferation / positive regulation of calcium-mediated signaling / positive regulation of phagocytosis / B cell differentiation / secretory granule membrane / T cell activation / B cell receptor signaling pathway / response to gamma radiation / negative regulation of ERK1 and ERK2 cascade / positive regulation of T cell mediated cytotoxicity / cytoplasmic side of plasma membrane / positive regulation of tumor necrosis factor production / MAPK cascade / heparin binding / T cell receptor signaling pathway / regulation of gene expression / defense response to virus / positive regulation of ERK1 and ERK2 cascade / positive regulation of MAPK cascade / cell surface receptor signaling pathway / regulation of cell cycle / membrane raft / signaling receptor binding / external side of plasma membrane / focal adhesion / Neutrophil degranulation / synapse / protein kinase binding / cell surface / negative regulation of transcription by RNA polymerase II / signal transduction / extracellular exosome / membrane / plasma membrane 類似検索 - 分子機能 | |||||||||||||||||||||||||||||||||||||||||||||
| 生物種 | Homo sapiens (ヒト) Human adenovirus 19a (ヒトアデノウイルス) | |||||||||||||||||||||||||||||||||||||||||||||
| 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: 3.8 Å | |||||||||||||||||||||||||||||||||||||||||||||
データ登録者 | Borowska, M.T. / Caveney, N.A. / Jude, K.M. / Garcia, K.C. | |||||||||||||||||||||||||||||||||||||||||||||
| 資金援助 | 米国, 3件
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引用 | ジャーナル: Sci Immunol / 年: 2024タイトル: Orientation-dependent CD45 inhibition with viral and engineered ligands. 著者: Marta T Borowska / Liu D Liu / Nathanael A Caveney / Kevin M Jude / Won-Ju Kim / Takeya Masubuchi / Enfu Hui / Robbie G Majzner / K Christopher Garcia / ![]() 要旨: CD45 is a cell surface phosphatase that shapes the T cell receptor signaling threshold but does not have a known ligand. A family of adenovirus proteins, including E3/49K, exploits CD45 to evade ...CD45 is a cell surface phosphatase that shapes the T cell receptor signaling threshold but does not have a known ligand. A family of adenovirus proteins, including E3/49K, exploits CD45 to evade immunity by binding to the extracellular domain of CD45, resulting in the suppression of T cell signaling. We determined the cryo-EM structure of this complex and found that the E3/49K protein is composed of three immunoglobulin domains assembled as "beads on a string" that compel CD45 into a closely abutted dimer by cross-linking the CD45 D3 domain, leading to steric inhibition of its intracellular phosphatase activity. Inspired by the E3/49K mechanism, we engineered CD45 surrogate ligands that can fine-tune T cell activation by dimerizing CD45 into different orientations and proximities. The adenovirus E3/49K protein has taught us that, despite a lack of a known ligand, CD45 activity can be modulated by extracellular dimerizing ligands that perturb its phosphatase activity and alter T cell responses. | |||||||||||||||||||||||||||||||||||||||||||||
| 履歴 |
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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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 | 8vse.cif.gz | 199 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8vse.ent.gz | 153.2 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8vse.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/vs/8vse ftp://data.pdbj.org/pub/pdb/validation_reports/vs/8vse | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 43497MC 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 F&H 検索 |
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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: 60713.836 Da / 分子数: 2 / 断片: extracellular domain / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PTPRC, CD45 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P08575, protein-tyrosine-phosphatase#2: タンパク質 | | 分子量: 39408.938 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) Human adenovirus 19a (ヒトアデノウイルス)遺伝子: 49K, E3 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q67812#3: 多糖 | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose #4: 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 | #5: 糖 | ChemComp-NAG / 研究の焦点であるリガンドがあるか | N | Has protein modification | Y | |
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-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 extracellular domain od human CD45 and extracellular domain of adenoviral protein E3/49K タイプ: COMPLEX / Entity ID: #2 / 由来: MULTIPLE SOURCES |
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| 分子量 | 値: 0.164 MDa / 実験値: NO |
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) |
| 緩衝液 | pH: 7.4 |
| 試料 | 濃度: 1.8 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
| 試料支持 | グリッドのタイプ: Quantifoil R1.2/1.3 |
| 急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277.15 K |
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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: TFS KRIOS |
| 電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: OTHER / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 800 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 |
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| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 粒子像の選択 | 選択した粒子像数: 5306556 | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 377081 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL | ||||||||||||||||||||||||
| 拘束条件 |
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ムービー
コントローラー
万見について




Homo sapiens (ヒト)
Human adenovirus 19a (ヒトアデノウイルス)
米国, 3件
引用
PDBj














FIELD EMISSION GUN