登録情報 データベース : PDB / ID : 6met 構造の表示 ダウンロードとリンクタイトル Structural basis of coreceptor recognition by HIV-1 envelope spike 要素C-C chemokine receptor type 5 Envelope glycoprotein gp160 T-cell surface glycoprotein CD4 詳細キーワード MEMBRANE PROTEIN / HIV coreceptor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
chemokine (C-C motif) ligand 5 binding / negative regulation of macrophage apoptotic process / chemokine receptor activity / helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / response to methamphetamine hydrochloride / maintenance of protein location in cell / cellular response to ionomycin / signaling ... chemokine (C-C motif) ligand 5 binding / negative regulation of macrophage apoptotic process / chemokine receptor activity / helper T cell enhancement of adaptive immune response / interleukin-16 binding / interleukin-16 receptor activity / response to methamphetamine hydrochloride / maintenance of protein location in cell / cellular response to ionomycin / signaling / T cell selection / MHC class II protein binding / C-C chemokine receptor activity / phosphatidylinositol-4,5-bisphosphate phospholipase C activity / positive regulation of kinase activity / C-C chemokine binding / interleukin-15-mediated signaling pathway / cellular response to granulocyte macrophage colony-stimulating factor stimulus / positive regulation of monocyte differentiation / response to cholesterol / Nef Mediated CD4 Down-regulation / Alpha-defensins / response to vitamin D / regulation of T cell activation / Chemokine receptors bind chemokines / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / dendritic cell chemotaxis / extracellular matrix structural constituent / Other interleukin signaling / T cell receptor complex / enzyme-linked receptor protein signaling pathway / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / Interleukin-10 signaling / positive regulation of calcium ion transport into cytosol / positive regulation of protein kinase activity / regulation of calcium ion transport / Generation of second messenger molecules / macrophage differentiation / T cell differentiation / immunoglobulin binding / Co-inhibition by PD-1 / Binding and entry of HIV virion / cellular defense response / coreceptor activity / positive regulation of T cell proliferation / positive regulation of interleukin-2 production / positive regulation of calcium-mediated signaling / protein tyrosine kinase binding / cell surface receptor protein tyrosine kinase signaling pathway / Vpu mediated degradation of CD4 / host cell endosome membrane / cell chemotaxis / calcium-mediated signaling / clathrin-coated endocytic vesicle membrane / positive regulation of protein phosphorylation / chemotaxis / MHC class II protein complex binding / Cargo recognition for clathrin-mediated endocytosis / Downstream TCR signaling / calcium ion transport / transmembrane signaling receptor activity / Clathrin-mediated endocytosis / response to estradiol / cell-cell signaling / MAPK cascade / signaling receptor activity / actin binding / virus receptor activity / positive regulation of cytosolic calcium ion concentration / cellular response to lipopolysaccharide / response to ethanol / G alpha (i) signalling events / defense response to Gram-negative bacterium / clathrin-dependent endocytosis of virus by host cell / adaptive immune response / positive regulation of viral entry into host cell / early endosome / cell surface receptor signaling pathway / positive regulation of ERK1 and ERK2 cascade / positive regulation of canonical NF-kappaB signal transduction / cell adhesion / endosome / positive regulation of MAPK cascade / immune response / G protein-coupled receptor signaling pathway / inflammatory response / membrane raft / endoplasmic reticulum lumen / external side of plasma membrane / fusion of virus membrane with host endosome membrane / lipid binding / apoptotic process / viral envelope / endoplasmic reticulum membrane / symbiont entry into host cell / protein kinase binding / positive regulation of DNA-templated transcription / virion attachment to host cell / host cell plasma membrane 類似検索 - 分子機能 CC chemokine receptor 5 / 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 / Chemokine receptor family / : ... CC chemokine receptor 5 / 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 / Chemokine receptor family / : / 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 / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / 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 2-acetamido-2-deoxy-alpha-D-galactopyranose / T-cell surface glycoprotein CD4 / C-C chemokine receptor type 5 / 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 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 : 4.5 Å 詳細データ登録者 Shaik, M.M. / Chen, B. 資金援助 米国, 1件 詳細 詳細を隠す組織 認可番号 国 National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI) AI141002 米国
引用ジャーナル : Nature / 年 : 2019タイトル : Structural basis of coreceptor recognition by HIV-1 envelope spike.著者 : Md Munan Shaik / Hanqin Peng / Jianming Lu / Sophia Rits-Volloch / Chen Xu / Maofu Liao / Bing Chen / 要旨 : HIV-1 envelope glycoprotein (Env), which consists of trimeric (gp160) cleaved to (gp120 and gp41), interacts with the primary receptor CD4 and a coreceptor (such as chemokine receptor CCR5) to fuse ... HIV-1 envelope glycoprotein (Env), which consists of trimeric (gp160) cleaved to (gp120 and gp41), interacts with the primary receptor CD4 and a coreceptor (such as chemokine receptor CCR5) to fuse viral and target-cell membranes. The gp120-coreceptor interaction has previously been proposed as the most crucial trigger for unleashing the fusogenic potential of gp41. Here we report a cryo-electron microscopy structure of a full-length gp120 in complex with soluble CD4 and unmodified human CCR5, at 3.9 Å resolution. The V3 loop of gp120 inserts into the chemokine-binding pocket formed by seven transmembrane helices of CCR5, and the N terminus of CCR5 contacts the CD4-induced bridging sheet of gp120. CCR5 induces no obvious allosteric changes in gp120 that can propagate to gp41; it does bring the Env trimer close to the target membrane. The N terminus of gp120, which is gripped by gp41 in the pre-fusion or CD4-bound Env, flips back in the CCR5-bound conformation and may irreversibly destabilize gp41 to initiate fusion. The coreceptor probably functions by stabilizing and anchoring the CD4-induced conformation of Env near the cell membrane. These results advance our understanding of HIV-1 entry into host cells and may guide the development of vaccines and therapeutic agents. 履歴 登録 2018年9月7日 登録サイト : RCSB / 処理サイト : RCSB改定 1.0 2018年12月12日 Provider : repository / タイプ : Initial release改定 1.1 2018年12月26日 Group : Data collection / Database references / カテゴリ : citation / Item : _citation.pdbx_database_id_PubMed / _citation.title改定 1.2 2019年1月16日 Group : Data collection / Database references / カテゴリ : citationItem : _citation.journal_id_ISSN / _citation.journal_volume ... _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last 改定 1.3 2019年12月18日 Group : Author supporting evidence / Data collection / カテゴリ : chem_comp / pdbx_audit_supportItem : _chem_comp.type / _pdbx_audit_support.funding_organization改定 2.0 2020年7月29日 Group : Advisory / Atomic model ... Advisory / Atomic model / Data collection / Derived calculations / Structure summary カテゴリ : atom_site / chem_comp ... atom_site / chem_comp / em_entity_assembly / entity / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / pdbx_struct_assembly_gen / pdbx_unobs_or_zero_occ_atoms / pdbx_validate_close_contact / struct_asym / struct_conn / struct_site / struct_site_gen Item : _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ... _atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_asym_id / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.label_entity_id / _atom_site.type_symbol / _chem_comp.name / _chem_comp.type / _em_entity_assembly.entity_id_list / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_unobs_or_zero_occ_atoms.auth_asym_id / _pdbx_unobs_or_zero_occ_atoms.auth_seq_id / _pdbx_unobs_or_zero_occ_atoms.label_asym_id / _pdbx_validate_close_contact.auth_asym_id_1 / _pdbx_validate_close_contact.auth_asym_id_2 / _pdbx_validate_close_contact.auth_seq_id_1 / _pdbx_validate_close_contact.auth_seq_id_2 / _struct_conn.pdbx_role / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id 解説 : Carbohydrate remediation / Provider : repository / タイプ : Remediation改定 2.1 2024年10月9日 Group : Data collection / Database references ... Data collection / Database references / Derived calculations / Refinement description / Structure summary カテゴリ : chem_comp / chem_comp_atom ... chem_comp / chem_comp_atom / chem_comp_bond / database_2 / em_3d_fitting_list / em_admin / pdbx_entry_details / pdbx_initial_refinement_model / pdbx_modification_feature / struct_conn Item : _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ... _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_3d_fitting_list.accession_code / _em_3d_fitting_list.initial_refinement_model_id / _em_3d_fitting_list.source_name / _em_3d_fitting_list.type / _em_admin.last_update / _struct_conn.pdbx_leaving_atom_flag
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