- EMDB-43497: Cryo-EM structure of human CD45 extracellular region in complex w... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-43497
タイトル
Cryo-EM structure of human CD45 extracellular region in complex with adenoviral protein E3/49K
マップデータ
試料
複合体: Complex of extracellular domain od human CD45 and extracellular domain of adenoviral protein E3/49K
タンパク質・ペプチド: 45.5kDa protein
タンパク質・ペプチド: Receptor-type tyrosine-protein phosphatase C
リガンド: 2-acetamido-2-deoxy-beta-D-glucopyranose
キーワード
Complex / T cell signaling / Viral suppression / IMMUNE SYSTEM
機能・相同性
機能・相同性情報
plasma membrane raft distribution / positive regulation of antigen receptor-mediated signaling pathway / positive regulation of hematopoietic stem cell migration / negative regulation of cytokine-mediated signaling pathway / negative regulation of interleukin-4-mediated signaling pathway / alpha-beta T cell proliferation / positive regulation of Fc receptor mediated stimulatory signaling pathway / negative regulation of cell adhesion involved in substrate-bound cell migration / regulation of interleukin-8 production / regulation of T cell receptor signaling pathway ...plasma membrane raft distribution / positive regulation of antigen receptor-mediated signaling pathway / positive regulation of hematopoietic stem cell migration / negative regulation of cytokine-mediated signaling pathway / negative regulation of interleukin-4-mediated signaling pathway / alpha-beta T cell proliferation / positive regulation of Fc receptor mediated stimulatory signaling pathway / negative regulation of cell adhesion involved in substrate-bound cell migration / regulation of interleukin-8 production / regulation of T cell receptor signaling pathway / membrane microdomain / negative regulation of T cell mediated cytotoxicity / negative regulation of microglial cell activation / Other semaphorin interactions / positive regulation of humoral immune response mediated by circulating immunoglobulin / cell cycle phase transition / DN2 thymocyte differentiation / gamma-delta T cell differentiation / positive regulation of gamma-delta T cell differentiation / transmembrane receptor protein tyrosine phosphatase activity / natural killer cell differentiation / positive regulation of alpha-beta T cell proliferation / bleb / stem cell development / positive regulation of isotype switching to IgG isotypes / negative thymic T cell selection / negative regulation of receptor signaling pathway via JAK-STAT / regulation of phagocytosis / positive thymic T cell selection / heparan sulfate proteoglycan binding / protein tyrosine kinase inhibitor activity / positive regulation of extrinsic apoptotic signaling pathway / bone marrow development / heterotypic cell-cell adhesion / ankyrin binding / positive regulation of immunoglobulin production / dephosphorylation / negative regulation of interleukin-2 production / leukocyte cell-cell adhesion / spectrin binding / response to aldosterone / positive regulation of stem cell proliferation / Phosphorylation of CD3 and TCR zeta chains / B cell proliferation / T cell differentiation / positive regulation of protein kinase activity / hematopoietic progenitor cell differentiation / positive regulation of T cell proliferation / positive regulation of phagocytosis / protein dephosphorylation / extrinsic apoptotic signaling pathway / positive regulation of B cell proliferation / release of sequestered calcium ion into cytosol / protein tyrosine phosphatase activity / protein tyrosine phosphatase activity, metal-dependent / histone H2AXY142 phosphatase activity / protein-tyrosine-phosphatase / non-membrane spanning protein tyrosine phosphatase activity / positive regulation of interleukin-2 production / B cell differentiation / positive regulation of calcium-mediated signaling / T cell activation / secretory granule membrane / negative regulation of protein kinase activity / response to gamma radiation / B cell receptor signaling pathway / 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 / cell surface receptor signaling pathway / positive regulation of ERK1 and ERK2 cascade / positive regulation of MAPK cascade / regulation of cell cycle / membrane raft / external side of plasma membrane / signaling receptor binding / focal adhesion / synapse / Neutrophil degranulation / protein kinase binding / negative regulation of transcription by RNA polymerase II / cell surface / signal transduction / extracellular exosome / membrane / plasma membrane 類似検索 - 分子機能
Adenovirus E3 region protein CR2 / Adenovirus E3 region protein CR1 / Adenovirus E3 region protein CR2 / Adenovirus E3 region protein CR1 / Receptor-type tyrosine-protein phosphatase C / Protein tyrosine phosphatase, receptor type, N-terminal / Protein tyrosine phosphatase N terminal / Leukocyte receptor CD45 / : / Protein tyrosine phosphatase, catalytic domain ...Adenovirus E3 region protein CR2 / Adenovirus E3 region protein CR1 / Adenovirus E3 region protein CR2 / Adenovirus E3 region protein CR1 / Receptor-type tyrosine-protein phosphatase C / Protein tyrosine phosphatase, receptor type, N-terminal / Protein tyrosine phosphatase N terminal / Leukocyte receptor CD45 / : / Protein tyrosine phosphatase, catalytic domain / PTP type protein phosphatase domain profile. / Protein-tyrosine phosphatase / Tyrosine-specific protein phosphatase, PTPase domain / Protein-tyrosine phosphatase, catalytic / Protein tyrosine phosphatase, catalytic domain motif / Tyrosine specific protein phosphatases active site. / Protein-tyrosine phosphatase, active site / Tyrosine-specific protein phosphatases domain / Tyrosine specific protein phosphatases domain profile. / Protein-tyrosine phosphatase-like / Fibronectin type III domain / Fibronectin type 3 domain / Fibronectin type-III domain profile. / Fibronectin type III / Fibronectin type III superfamily / Immunoglobulin-like fold 類似検索 - ドメイン・相同性
Receptor-type tyrosine-protein phosphatase C / 45.5kDa protein 類似検索 - 構成要素
生物種
Homo sapiens (ヒト) / Human adenovirus 19a (ヒトアデノウイルス)
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
RO1-AI103867
米国
Ludwig Institute for Cancer Research (LICR)
米国
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.