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基本情報
登録情報 | データベース: PDB / ID: 8zpl | |||||||||||||||||||||||||||
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タイトル | Cryo-EM strucutre of CXCR4 complexed with antagonist HF51116 | |||||||||||||||||||||||||||
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![]() | SIGNALING PROTEIN / CXC motif chemokine receptor 4 / antagonist | |||||||||||||||||||||||||||
機能・相同性 | ![]() C-X-C motif chemokine 12 receptor activity / regulation of viral process / positive regulation of vascular wound healing / positive regulation of macrophage migration inhibitory factor signaling pathway / neuron recognition / telencephalon cell migration / positive regulation of mesenchymal stem cell migration / response to tacrolimus / response to ultrasound / Specification of primordial germ cells ...C-X-C motif chemokine 12 receptor activity / regulation of viral process / positive regulation of vascular wound healing / positive regulation of macrophage migration inhibitory factor signaling pathway / neuron recognition / telencephalon cell migration / positive regulation of mesenchymal stem cell migration / response to tacrolimus / response to ultrasound / Specification of primordial germ cells / CXCL12-activated CXCR4 signaling pathway / myosin light chain binding / myelin maintenance / C-X-C chemokine receptor activity / regulation of programmed cell death / positive regulation of vasculature development / endothelial tube morphogenesis / endothelial cell differentiation / Signaling by ROBO receptors / regulation of chemotaxis / positive regulation of dendrite extension / Formation of definitive endoderm / positive regulation of chemotaxis / C-C chemokine receptor activity / C-C chemokine binding / Chemokine receptors bind chemokines / anchoring junction / dendritic cell chemotaxis / epithelial cell development / cellular response to cytokine stimulus / cell leading edge / small molecule binding / detection of temperature stimulus involved in sensory perception of pain / regulation of calcium ion transport / positive regulation of oligodendrocyte differentiation / Binding and entry of HIV virion / regulation of cell adhesion / detection of mechanical stimulus involved in sensory perception of pain / coreceptor activity / cardiac muscle contraction / ubiquitin binding / response to activity / neurogenesis / cell chemotaxis / neuron migration / calcium-mediated signaling / electron transport chain / G protein-coupled receptor activity / brain development / response to virus / late endosome / cellular response to xenobiotic stimulus / actin binding / positive regulation of cold-induced thermogenesis / virus receptor activity / positive regulation of cytosolic calcium ion concentration / cytoplasmic vesicle / G alpha (i) signalling events / lysosome / early endosome / electron transfer activity / response to hypoxia / periplasmic space / positive regulation of cell migration / immune response / G protein-coupled receptor signaling pathway / inflammatory response / iron ion binding / external side of plasma membrane / apoptotic process / heme binding / 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 | ![]() ![]() ![]() ![]() ![]() | |||||||||||||||||||||||||||
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: 3.01 Å | |||||||||||||||||||||||||||
![]() | Jiao, H.Z. / Hu, H.L. | |||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural mechanisms underlying the modulation of CXCR4 by diverse small-molecule antagonists. 著者: Xiaohong Sang / Haizhan Jiao / Qian Meng / Xiong Fang / Qi Pan / Jiao Zhou / Tingli Qian / Wanqin Zhang / Yan Xu / Jing An / Ziwei Huang / Hongli Hu / ![]() ![]() 要旨: CXCR4 (CXC chemokine receptor type 4), a member of the G protein-coupled receptor superfamily, plays a role in cell migration and functions as a coreceptor for HIV entry. Molecular therapeutics ...CXCR4 (CXC chemokine receptor type 4), a member of the G protein-coupled receptor superfamily, plays a role in cell migration and functions as a coreceptor for HIV entry. Molecular therapeutics targeting CXCR4 have been under intensive investigation. To date, only two small-molecule antagonist drugs targeting CXCR4, plerixafor (AMD3100) and mavorixafor (AMD070), have been approved. Here, we present the high-resolution structures of CXCR4 complexed with AMD3100 and AMD070, as well as a small-molecule antagonist HF51116 that has very different chemical structure and binding mechanism from AMD3100 and AMD070. The interactions between these antagonists and the receptor are analyzed in details, and the mechanisms of antagonism are elucidated. Both the major and minor subpockets on CXCR4 are found to be involved in binding of these small-molecule antagonists. The distinct conformations of Trp94 observed in these structures highlight the plasticity of the binding pocket on CXCR4, offering valuable insights into the exploration and refinement of therapeutic strategies targeting this chemokine receptor. | |||||||||||||||||||||||||||
履歴 |
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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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 | ![]() | 102.6 KB | 表示 | ![]() |
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PDB形式 | ![]() | 表示 | ![]() | |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.3 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.3 MB | 表示 | |
XML形式データ | ![]() | 30.7 KB | 表示 | |
CIF形式データ | ![]() | 43.1 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 60348MC ![]() 8zpmC ![]() 8zpnC 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 ![]() |
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リンク
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集合体
登録構造単位 | ![]()
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要素
#1: 抗体 | 分子量: 18665.906 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() |
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#2: タンパク質 | 分子量: 55451.062 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() ![]() 遺伝子: cybC, CXCR4 発現宿主: ![]() ![]() 参照: UniProt: P0ABE7, UniProt: P61073 |
#3: 化合物 | |
#4: 化合物 | ChemComp-A1D8K / ( 分子量: 522.729 Da / 分子数: 1 / 由来タイプ: 合成 / 式: C29H46N8O / タイプ: SUBJECT OF INVESTIGATION |
研究の焦点であるリガンドがあるか | Y |
Has protein modification | Y |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
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試料調製
構成要素 | 名称: HF51116-CXCR4-KOR-Nb6 / タイプ: COMPLEX / Entity ID: #1-#2 / 由来: MULTIPLE SOURCES |
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由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 7.5 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1500 nm |
撮影 | 電子線照射量: 51.6 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
電子光学装置 | エネルギーフィルター名称: GIF Bioquantum / エネルギーフィルタースリット幅: 20 eV |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
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3次元再構成 | 解像度: 3.01 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 142111 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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