登録情報 データベース : EMDB / ID : EMD-3096 構造の表示 ダウンロードとリンクタイトル cryo-ET subtomogram averaging of BG505 SOSIP.664 in complex with sCD4, 17b, and 8ANC195 マップデータsubtomogram-averaging of 1745 sub-volumes. 詳細 試料試料 : soluble HIV-1 Env trimer BG505 SOSIP.664 in complex with soluble CD4s (D1-D2), broadly neutralizing antibody 17b Fabs, and broadly neutralizing antibody 8ANC195 variant G32K5 Fabsタンパク質・ペプチド : Soluble HIV-1 Env trimer BG505 SOSIP.664タンパク質・ペプチド : Fab of broadly neutralizing antibody 17bタンパク質・ペプチド : soluble CD4 (D1-D2 domains)タンパク質・ペプチド : Fab of broadly neutralizing antibody 8ANC195 variant G52K5 詳細機能・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
helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / maintenance of protein location in cell / cellular response to ionomycin / response to methamphetamine hydrochloride / T cell selection / MHC class II protein binding / interleukin-15-mediated signaling pathway / cellular response to granulocyte macrophage colony-stimulating factor stimulus ... helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / maintenance of protein location in cell / cellular response to ionomycin / response to methamphetamine hydrochloride / T cell selection / MHC class II protein binding / interleukin-15-mediated signaling pathway / cellular response to granulocyte macrophage colony-stimulating factor stimulus / positive regulation of monocyte differentiation / Alpha-defensins / Nef Mediated CD4 Down-regulation / regulation of T cell activation / response to vitamin D / Other interleukin signaling / T cell receptor complex / extracellular matrix structural constituent / enzyme-linked receptor protein signaling pathway / Dectin-2 family / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / macrophage differentiation / Generation of second messenger molecules / immunoglobulin binding / T cell differentiation / Co-inhibition by PD-1 / positive regulation of calcium ion transport into cytosol / Binding and entry of HIV virion / positive regulation of interleukin-2 production / symbiont-mediated perturbation of host defense response / coreceptor activity / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / positive regulation of T cell proliferation / positive regulation of calcium-mediated signaling / cell surface receptor protein tyrosine kinase signaling pathway / protein tyrosine kinase binding / host cell endosome membrane / Vpu mediated degradation of CD4 / calcium-mediated signaling / clathrin-coated endocytic vesicle membrane / MHC class II protein complex binding / response to estradiol / transmembrane signaling receptor activity / Downstream TCR signaling / Cargo recognition for clathrin-mediated endocytosis / T cell receptor signaling pathway / Clathrin-mediated endocytosis / virus receptor activity / signaling receptor activity / clathrin-dependent endocytosis of virus by host cell / defense response to Gram-negative bacterium / response to ethanol / adaptive immune response / early endosome / cell surface receptor signaling pathway / cell adhesion / immune response / viral protein processing / membrane raft / endoplasmic reticulum lumen / fusion of virus membrane with host plasma membrane / external side of plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / symbiont entry into host cell / lipid binding / endoplasmic reticulum membrane / protein kinase binding / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / enzyme binding / signal transduction / protein homodimerization activity / zinc ion binding / membrane / identical protein binding / plasma membrane 類似検索 - 分子機能 CD4, extracellular / T cell CD4 receptor C-terminal region / CD4, extracellular / T cell CD4 receptor C terminal region / T-cell surface antigen CD4 / Immunoglobulin C2-set / Immunoglobulin C2-set domain / Immunoglobulin / Immunoglobulin domain / Envelope glycoprotein Gp160 ... CD4, extracellular / T cell CD4 receptor C-terminal region / CD4, extracellular / T cell CD4 receptor C terminal region / T-cell surface antigen CD4 / Immunoglobulin C2-set / Immunoglobulin C2-set domain / Immunoglobulin / Immunoglobulin domain / Envelope glycoprotein Gp160 / Retroviral envelope protein / Retroviral envelope protein GP41-like / Gp120 core superfamily / Envelope glycoprotein GP120 / Human immunodeficiency virus 1, envelope glycoprotein Gp120 / Immunoglobulin subtype 2 / Immunoglobulin C-2 Type / Immunoglobulin V-Type / Immunoglobulin V-set domain / Immunoglobulin subtype / Immunoglobulin / 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 T-cell surface glycoprotein CD4 / Envelope glycoprotein gp160 類似検索 - 構成要素生物種 Human immunodeficiency virus 1 (ヒト免疫不全ウイルス) / Homo sapiens (ヒト)手法 サブトモグラム平均法 / クライオ電子顕微鏡法 / 解像度 : 23.0 Å 詳細 データ登録者Scharf L / Wang H / Gao H / Chen S / McDowall A / Bjorkman P 引用ジャーナル : Cell / 年 : 2015タイトル : Broadly Neutralizing Antibody 8ANC195 Recognizes Closed and Open States of HIV-1 Env.著者 : Louise Scharf / Haoqing Wang / Han Gao / Songye Chen / Alasdair W McDowall / Pamela J Bjorkman / 要旨 : The HIV-1 envelope (Env) spike contains limited epitopes for broadly neutralizing antibodies (bNAbs); thus, most neutralizing antibodies are strain specific. The 8ANC195 epitope, defined by crystal ... The HIV-1 envelope (Env) spike contains limited epitopes for broadly neutralizing antibodies (bNAbs); thus, most neutralizing antibodies are strain specific. The 8ANC195 epitope, defined by crystal and electron microscopy (EM) structures of bNAb 8ANC195 complexed with monomeric gp120 and trimeric Env, respectively, spans the gp120 and gp41 Env subunits. To investigate 8ANC195's gp41 epitope at higher resolution, we solved a 3.58 Å crystal structure of 8ANC195 complexed with fully glycosylated Env trimer, revealing 8ANC195 insertion into a glycan shield gap to contact gp120 and gp41 glycans and protein residues. To determine whether 8ANC195 recognizes the CD4-bound open Env conformation that leads to co-receptor binding and fusion, one of several known conformations of virion-associated Env, we solved EM structures of an Env/CD4/CD4-induced antibody/8ANC195 complex. 8ANC195 binding partially closed the CD4-bound trimer, confirming structural plasticity of Env by revealing a previously unseen conformation. 8ANC195's ability to bind different Env conformations suggests advantages for potential therapeutic applications. 履歴 登録 2015年7月14日 - ヘッダ(付随情報) 公開 2015年7月29日 - マップ公開 2015年9月23日 - 更新 2015年9月23日 - 現状 2015年9月23日 処理サイト : PDBe / 状態 : 公開
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