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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 8u4s | |||||||||||||||||||||||||||||||||||||||||||||
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| タイトル | Structure of trimeric CXCR4 in complex with REGN7663 Fab | |||||||||||||||||||||||||||||||||||||||||||||
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キーワード | SIGNALING PROTEIN/IMMUNE SYSTEM / GPCR / chemokine receptor / trimer / oligomer / antibody / SIGNALING PROTEIN-IMMUNE SYSTEM complex | |||||||||||||||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報C-X-C motif chemokine 12 receptor activity / positive regulation of macrophage migration inhibitory factor signaling pathway / myosin light chain binding / CXCL12-activated CXCR4 signaling pathway / Specification of primordial germ cells / myelin maintenance / C-X-C chemokine receptor activity / Developmental Lineage of Multipotent Pancreatic Progenitor Cells / positive regulation of vasculature development / Signaling by ROBO receptors ...C-X-C motif chemokine 12 receptor activity / positive regulation of macrophage migration inhibitory factor signaling pathway / myosin light chain binding / CXCL12-activated CXCR4 signaling pathway / Specification of primordial germ cells / myelin maintenance / C-X-C chemokine receptor activity / Developmental Lineage of Multipotent Pancreatic Progenitor Cells / positive regulation of vasculature development / Signaling by ROBO receptors / Formation of definitive endoderm / C-C chemokine receptor activity / C-C chemokine binding / anchoring junction / Chemokine receptors bind chemokines / dendritic cell chemotaxis / cellular response to cytokine stimulus / cell leading edge / positive regulation of oligodendrocyte differentiation / Binding and entry of HIV virion / regulation of cell adhesion / coreceptor activity / neurogenesis / cell chemotaxis / ubiquitin binding / calcium-mediated signaling / brain development / G protein-coupled receptor activity / response to virus / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / late endosome / positive regulation of cold-induced thermogenesis / virus receptor activity / positive regulation of cytosolic calcium ion concentration / actin binding / cytoplasmic vesicle / G alpha (i) signalling events / response to hypoxia / early endosome / lysosome / immune response / positive regulation of cell migration / G protein-coupled receptor signaling pathway / inflammatory response / external side of plasma membrane / apoptotic process / ubiquitin protein ligase binding / cell surface / protein-containing complex / extracellular exosome / plasma membrane / cytoplasm 類似検索 - 分子機能 | |||||||||||||||||||||||||||||||||||||||||||||
| 生物種 | 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: 3.35 Å | |||||||||||||||||||||||||||||||||||||||||||||
データ登録者 | Saotome, K. / McGoldrick, L.L. / Franklin, M.C. | |||||||||||||||||||||||||||||||||||||||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Nat Struct Mol Biol / 年: 2025タイトル: Structural insights into CXCR4 modulation and oligomerization. 著者: Kei Saotome / Luke L McGoldrick / Jo-Hao Ho / Trudy F Ramlall / Sweta Shah / Michael J Moore / Jee Hae Kim / Raymond Leidich / William C Olson / Matthew C Franklin / ![]() 要旨: Activation of the chemokine receptor CXCR4 by its chemokine ligand CXCL12 regulates diverse cellular processes. Previously reported crystal structures of CXCR4 revealed the architecture of an ...Activation of the chemokine receptor CXCR4 by its chemokine ligand CXCL12 regulates diverse cellular processes. Previously reported crystal structures of CXCR4 revealed the architecture of an inactive, homodimeric receptor. However, many structural aspects of CXCR4 remain poorly understood. Here, we use cryo-electron microscopy to investigate various modes of human CXCR4 regulation. CXCL12 activates CXCR4 by inserting its N terminus deep into the CXCR4 orthosteric pocket. The binding of US Food and Drug Administration-approved antagonist AMD3100 is stabilized by electrostatic interactions with acidic residues in the seven-transmembrane-helix bundle. A potent antibody blocker, REGN7663, binds across the extracellular face of CXCR4 and inserts its complementarity-determining region H3 loop into the orthosteric pocket. Trimeric and tetrameric structures of CXCR4 reveal modes of G-protein-coupled receptor oligomerization. We show that CXCR4 adopts distinct subunit conformations in trimeric and tetrameric assemblies, highlighting how oligomerization could allosterically regulate chemokine receptor function. #1: ジャーナル: Biorxiv / 年: 2024タイトル: Structural insights into CXCR4 modulation and oligomerization 著者: Saotome, K. / McGoldrick, L.L. / Ho, J. / Ramlall, T. / Shah, S. / Moore, M.J. / Kim, J.H. / Leidich, R. / Olson, W.C. / Franklin, M.C. | |||||||||||||||||||||||||||||||||||||||||||||
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 8u4s.cif.gz | 372.9 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8u4s.ent.gz | 267.8 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8u4s.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
| その他 | その他のダウンロード |
-検証レポート
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/u4/8u4s ftp://data.pdbj.org/pub/pdb/validation_reports/u4/8u4s | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 41893MC ![]() 8u4nC ![]() 8u4oC ![]() 8u4pC ![]() 8u4qC ![]() 8u4rC ![]() 8u4tC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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リンク
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集合体
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| 非結晶学的対称性 (NCS) | NCSドメイン:
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要素
万見について




Homo sapiens (ヒト)
米国, 1件
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