- PDB-3tyg: Crystal structure of broad and potent HIV-1 neutralizing antibody... -
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基本情報
登録情報
データベース: PDB / ID: 3tyg
タイトル
Crystal structure of broad and potent HIV-1 neutralizing antibody PGT128 in complex with a glycosylated engineered gp120 outer domain with miniV3 (eODmV3)
要素
Envelope glycoprotein gp160
PGT128 heavy chain, Ig gamma-1 chain C region
PGT128 light chain, Ig lambda-2 chain C regions
キーワード
IMMUNE SYSTEM / VIRAL PROTEIN / gp120 / HIV-1 / Env / Fab / HIV-1 neutralizing antibody
機能・相同性
機能・相同性情報
IgD immunoglobulin complex / positive regulation of B cell activation / IgA immunoglobulin complex / IgM immunoglobulin complex / IgE immunoglobulin complex / Synthesis and processing of ENV and VPU / phagocytosis, recognition / symbiont-mediated evasion of host immune response / Fc-gamma receptor I complex binding / CD22 mediated BCR regulation ...IgD immunoglobulin complex / positive regulation of B cell activation / IgA immunoglobulin complex / IgM immunoglobulin complex / IgE immunoglobulin complex / Synthesis and processing of ENV and VPU / phagocytosis, recognition / symbiont-mediated evasion of host immune response / Fc-gamma receptor I complex binding / CD22 mediated BCR regulation / positive regulation of establishment of T cell polarity / complement-dependent cytotoxicity / Alpha-defensins / IgG immunoglobulin complex / Fc epsilon receptor (FCERI) signaling / antibody-dependent cellular cytotoxicity / immunoglobulin receptor binding / immunoglobulin complex, circulating / Classical antibody-mediated complement activation / phagocytosis, engulfment / Initial triggering of complement / Dectin-2 family / immunoglobulin mediated immune response / FCGR activation / Role of LAT2/NTAL/LAB on calcium mobilization / complement activation, classical pathway / Binding and entry of HIV virion / Role of phospholipids in phagocytosis / Scavenging of heme from plasma / antigen binding / positive regulation of plasma membrane raft polarization / positive regulation of receptor clustering / FCERI mediated Ca+2 mobilization / FCGR3A-mediated IL10 synthesis / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / host cell endosome membrane / Regulation of Complement cascade / actin filament organization / Cell surface interactions at the vascular wall / B cell receptor signaling pathway / FCGR3A-mediated phagocytosis / FCERI mediated MAPK activation / Assembly Of The HIV Virion / Budding and maturation of HIV virion / Regulation of actin dynamics for phagocytic cup formation / FCERI mediated NF-kB activation / Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell / antibacterial humoral response / Interleukin-4 and Interleukin-13 signaling / clathrin-dependent endocytosis of virus by host cell / blood microparticle / adaptive immune response / Potential therapeutics for SARS / viral protein processing / defense response to bacterium / symbiont entry into host cell / external side of plasma membrane / innate immune response / fusion of virus membrane with host plasma membrane / fusion of virus membrane with host endosome membrane / viral envelope / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / extracellular space / extracellular exosome / extracellular region / identical protein binding / membrane / plasma membrane 類似検索 - 分子機能
ジャーナル: Science / 年: 2011 タイトル: A potent and broad neutralizing antibody recognizes and penetrates the HIV glycan shield. 著者: Robert Pejchal / Katie J Doores / Laura M Walker / Reza Khayat / Po-Ssu Huang / Sheng-Kai Wang / Robyn L Stanfield / Jean-Philippe Julien / Alejandra Ramos / Max Crispin / Rafael Depetris / ...著者: Robert Pejchal / Katie J Doores / Laura M Walker / Reza Khayat / Po-Ssu Huang / Sheng-Kai Wang / Robyn L Stanfield / Jean-Philippe Julien / Alejandra Ramos / Max Crispin / Rafael Depetris / Umesh Katpally / Andre Marozsan / Albert Cupo / Sebastien Maloveste / Yan Liu / Ryan McBride / Yukishige Ito / Rogier W Sanders / Cassandra Ogohara / James C Paulson / Ten Feizi / Christopher N Scanlan / Chi-Huey Wong / John P Moore / William C Olson / Andrew B Ward / Pascal Poignard / William R Schief / Dennis R Burton / Ian A Wilson / 要旨: The HIV envelope (Env) protein gp120 is protected from antibody recognition by a dense glycan shield. However, several of the recently identified PGT broadly neutralizing antibodies appear to ...The HIV envelope (Env) protein gp120 is protected from antibody recognition by a dense glycan shield. However, several of the recently identified PGT broadly neutralizing antibodies appear to interact directly with the HIV glycan coat. Crystal structures of antigen-binding fragments (Fabs) PGT 127 and 128 with Man(9) at 1.65 and 1.29 angstrom resolution, respectively, and glycan binding data delineate a specific high mannose-binding site. Fab PGT 128 complexed with a fully glycosylated gp120 outer domain at 3.25 angstroms reveals that the antibody penetrates the glycan shield and recognizes two conserved glycans as well as a short β-strand segment of the gp120 V3 loop, accounting for its high binding affinity and broad specificity. Furthermore, our data suggest that the high neutralization potency of PGT 127 and 128 immunoglobulin Gs may be mediated by cross-linking Env trimers on the viral surface.