登録情報 データベース : EMDB / ID : EMD-37937 ダウンロードとリンクタイトル Local map of human CD5L bound to IgM-Fc/J マップデータ 詳細 試料複合体 : Ternary complex of IgM-Fc with the J chain and CD5Lタンパク質・ペプチド : Interleukin-2,Isoform 1 of Immunoglobulin heavy constant muタンパク質・ペプチド : Interleukin-2,CD5 antigen-likeタンパク質・ペプチド : Immunoglobulin J chainリガンド : 2-acetamido-2-deoxy-beta-D-glucopyranoseリガンド : CALCIUM ION 詳細 キーワード immunoglobulin / CD5 antigen-like / pentamer / IMMUNE SYSTEM機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
positive regulation of complement-dependent cytotoxicity / hexameric IgM immunoglobulin complex / response to tacrolimus / kappa-type opioid receptor binding / regulation of CD4-positive, alpha-beta T cell proliferation / regulation of T cell homeostatic proliferation / dimeric IgA immunoglobulin complex / IgM B cell receptor complex / interleukin-2 receptor binding / secretory dimeric IgA immunoglobulin complex ... positive regulation of complement-dependent cytotoxicity / hexameric IgM immunoglobulin complex / response to tacrolimus / kappa-type opioid receptor binding / regulation of CD4-positive, alpha-beta T cell proliferation / regulation of T cell homeostatic proliferation / dimeric IgA immunoglobulin complex / IgM B cell receptor complex / interleukin-2 receptor binding / secretory dimeric IgA immunoglobulin complex / monomeric IgA immunoglobulin complex / pentameric IgM immunoglobulin complex / secretory IgA immunoglobulin complex / glycosphingolipid binding / positive regulation of plasma cell differentiation / negative regulation of lymphocyte proliferation / IgA binding / positive regulation of tissue remodeling / negative regulation of T-helper 17 cell differentiation / IgM immunoglobulin complex / RUNX1 and FOXP3 control the development of regulatory T lymphocytes (Tregs) / regulation of complement activation / glomerular filtration / leukocyte activation involved in immune response / pre-B cell allelic exclusion / positive regulation of isotype switching to IgG isotypes / positive regulation of phagocytosis, engulfment / CD22 mediated BCR regulation / activated T cell proliferation / Interleukin-2 signaling / cell surface receptor signaling pathway via STAT / natural killer cell activation / kinase activator activity / positive regulation of activated T cell proliferation / positive regulation of regulatory T cell differentiation / negative regulation of B cell apoptotic process / immunoglobulin receptor binding / positive regulation of immunoglobulin production / interleukin-2-mediated signaling pathway / positive regulation of interleukin-17 production / positive regulation of respiratory burst / positive regulation of dendritic spine development / humoral immune response / T cell differentiation / Interleukin receptor SHC signaling / cellular defense response / immune system process / Scavenging of heme from plasma / antigen binding / positive regulation of B cell proliferation / extrinsic apoptotic signaling pathway in absence of ligand / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / cytokine activity / Cell surface interactions at the vascular wall / B cell receptor signaling pathway / growth factor activity / response to wounding / negative regulation of inflammatory response / positive regulation of type II interferon production / positive regulation of inflammatory response / cell-cell signaling / antibacterial humoral response / carbohydrate binding / positive regulation of cytosolic calcium ion concentration / RAF/MAP kinase cascade / positive regulation of cell growth / protein-containing complex assembly / blood microparticle / transcription by RNA polymerase II / phospholipase C-activating G protein-coupled receptor signaling pathway / Potential therapeutics for SARS / defense response to Gram-negative bacterium / adaptive immune response / response to ethanol / protein-macromolecule adaptor activity / cell adhesion / immune response / inflammatory response / innate immune response / apoptotic process / positive regulation of cell population proliferation / negative regulation of apoptotic process / cell surface / protein homodimerization activity / positive regulation of transcription by RNA polymerase II / : / extracellular exosome / extracellular region / plasma membrane / cytoplasm 類似検索 - 分子機能 Interleukin-2 / Interleukin-2, conserved site / Interleukin 2 / Interleukin-2 signature. / Interleukin-2 family / Immunoglobulin J chain / Immunoglobulin J chain / SRCR domain signature. / Scavenger receptor cysteine-rich domain / SRCR domain profile. ... Interleukin-2 / Interleukin-2, conserved site / Interleukin 2 / Interleukin-2 signature. / Interleukin-2 family / Immunoglobulin J chain / Immunoglobulin J chain / SRCR domain signature. / Scavenger receptor cysteine-rich domain / SRCR domain profile. / SRCR-like domain superfamily / Scavenger receptor Cys-rich / SRCR domain / Four-helical cytokine-like, core / : / Immunoglobulin/major histocompatibility complex, conserved site / Immunoglobulins and major histocompatibility complex proteins signature. / Immunoglobulin C-Type / Immunoglobulin C1-set / Immunoglobulin C1-set domain / Ig-like domain profile. / Immunoglobulin-like domain / Immunoglobulin-like domain superfamily / Immunoglobulin-like fold 類似検索 - ドメイン・相同性 CD5 antigen-like / Immunoglobulin J chain / Immunoglobulin heavy constant mu / Interleukin-2 類似検索 - 構成要素生物種 Homo sapiens (ヒト)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.41 Å 詳細 データ登録者Wang YX / Su C / Xiao JY 資金援助 中国, 1件 詳細 詳細を隠すOrganization Grant number 国 National Natural Science Foundation of China (NSFC) 中国
引用ジャーナル : Nat Commun / 年 : 2024タイトル : CD5L associates with IgM via the J chain.著者 : Yuxin Wang / Chen Su / Chenggong Ji / Junyu Xiao / 要旨 : CD5 antigen-like (CD5L), also known as Spα or AIM (Apoptosis inhibitor of macrophage), emerges as an integral component of serum immunoglobulin M (IgM). However, the molecular mechanism underlying ... CD5 antigen-like (CD5L), also known as Spα or AIM (Apoptosis inhibitor of macrophage), emerges as an integral component of serum immunoglobulin M (IgM). However, the molecular mechanism underlying the interaction between IgM and CD5L has remained elusive. In this study, we present a cryo-electron microscopy structure of the human IgM pentamer core in complex with CD5L. Our findings reveal that CD5L binds to the joining chain (J chain) in a Ca-dependent manner and further links to IgM via a disulfide bond. We further corroborate recently published data that CD5L reduces IgM binding to the mucosal transport receptor pIgR, but does not impact the binding of the IgM-specific receptor FcμR. Additionally, CD5L does not interfere with IgM-mediated complement activation. These results offer a more comprehensive understanding of IgM and shed light on the function of the J chain in the immune system. 履歴 登録 2023年10月31日 - ヘッダ(付随情報) 公開 2024年10月9日 - マップ公開 2024年10月9日 - 更新 2024年11月13日 - 現状 2024年11月13日 処理サイト : PDBj / 状態 : 公開
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