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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: 8hnn | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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タイトル | Structure of CXCR3 complexed with antagonist SCH546738 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() | SIGNALING PROTEIN / G protein coupled receptor / chemokine receptor / CXCR3 / SCH546738 / complex | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
機能・相同性 | ![]() response to acrylamide / adenylate cyclase-inhibiting opioid receptor signaling pathway / dynorphin receptor activity / regulation of saliva secretion / regulation of leukocyte migration / negative regulation of luteinizing hormone secretion / sensory perception of temperature stimulus / chemokine binding / positive regulation of eating behavior / G protein-coupled opioid receptor activity ...response to acrylamide / adenylate cyclase-inhibiting opioid receptor signaling pathway / dynorphin receptor activity / regulation of saliva secretion / regulation of leukocyte migration / negative regulation of luteinizing hormone secretion / sensory perception of temperature stimulus / chemokine binding / positive regulation of eating behavior / G protein-coupled opioid receptor activity / C-X-C chemokine binding / chemokine receptor activity / G protein-coupled opioid receptor signaling pathway / C-X-C chemokine receptor activity / positive regulation of dopamine secretion / positive regulation of chemotaxis / sensory perception / C-C chemokine receptor activity / positive regulation of potassium ion transmembrane transport / C-C chemokine binding / T cell chemotaxis / receptor serine/threonine kinase binding / maternal behavior / negative regulation of execution phase of apoptosis / neuropeptide binding / positive regulation of p38MAPK cascade / Chemokine receptors bind chemokines / eating behavior / negative regulation of endothelial cell proliferation / positive regulation of execution phase of apoptosis / conditioned place preference / neuropeptide signaling pathway / estrous cycle / regulation of cell adhesion / behavioral response to cocaine / MECP2 regulates neuronal receptors and channels / axon terminus / sensory perception of pain / T-tubule / negative regulation of angiogenesis / positive regulation of release of sequestered calcium ion into cytosol / Peptide ligand-binding receptors / sarcoplasmic reticulum / cell chemotaxis / response to nicotine / locomotory behavior / cellular response to glucose stimulus / calcium-mediated signaling / electron transport chain / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / response to insulin / response to estrogen / adenylate cyclase-activating G protein-coupled receptor signaling pathway / positive regulation of angiogenesis / chemotaxis / synaptic vesicle membrane / signaling receptor activity / cellular response to lipopolysaccharide / positive regulation of cytosolic calcium ion concentration / presynaptic membrane / angiogenesis / response to ethanol / perikaryon / G alpha (i) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / defense response to virus / chemical synaptic transmission / postsynaptic membrane / periplasmic space / electron transfer activity / neuron projection / cell surface receptor signaling pathway / cell adhesion / immune response / G protein-coupled receptor signaling pathway / inflammatory response / iron ion binding / external side of plasma membrane / apoptotic process / positive regulation of cell population proliferation / heme binding / dendrite / cell surface / positive regulation of transcription by RNA polymerase II / mitochondrion / nucleoplasm / membrane / plasma membrane / cytosol / 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: 3.6 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Jiao, H.Z. / Hu, H.L. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural insights into the activation and inhibition of CXC chemokine receptor 3. 著者: Haizhan Jiao / Bin Pang / Aijun Liu / Qiang Chen / Qi Pan / Xiankun Wang / Yunong Xu / Ying-Chih Chiang / Ruobing Ren / Hongli Hu / ![]() 要旨: The chemotaxis of CD4 type 1 helper cells and CD8 cytotoxic lymphocytes, guided by interferon-inducible CXC chemokine 9-11 (CXCL9-11) and CXC chemokine receptor 3 (CXCR3), plays a critical role in ...The chemotaxis of CD4 type 1 helper cells and CD8 cytotoxic lymphocytes, guided by interferon-inducible CXC chemokine 9-11 (CXCL9-11) and CXC chemokine receptor 3 (CXCR3), plays a critical role in type 1 immunity. Here we determined the structures of human CXCR3-DNG complexes activated by chemokine CXCL11, peptidomimetic agonist PS372424 and biaryl-type agonist VUF11222, and the structure of inactive CXCR3 bound to noncompetitive antagonist SCH546738. Structural analysis revealed that PS372424 shares a similar orthosteric binding pocket to the N terminus of CXCL11, while VUF11222 buries deeper and activates the receptor in a distinct manner. We showed an allosteric binding site between TM5 and TM6, accommodating SCH546738 in the inactive CXCR3. SCH546738 may restrain the receptor at an inactive state by preventing the repacking of TM5 and TM6. By revealing the binding patterns and the pharmacological properties of the four modulators, we present the activation mechanisms of CXCR3 and provide insights for future drug development. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 | ![]() | 90.3 KB | 表示 | ![]() |
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PDB形式 | ![]() | 61.1 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 496.9 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 499.9 KB | 表示 | |
XML形式データ | ![]() | 9.5 KB | 表示 | |
CIF形式データ | ![]() | 14.4 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
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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: 56327.051 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() ![]() 遺伝子: cybC, CXCR3, GPR9, OPRK1, OPRK 発現宿主: ![]() ![]() 参照: UniProt: P0ABE7, UniProt: P49682, UniProt: P41145 |
#3: 化合物 | ChemComp-43I / |
#4: 化合物 | ChemComp-CLR / |
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: CXCR3-KOR-SCH546738-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 | 濃度: 5 mg/ml / 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 / 湿度: 100 % |
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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 / 倍率(公称値): 105000 X / 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 / Cs: 2.7 mm / C2レンズ絞り径: 100 µm |
撮影 | 電子線照射量: 53.43 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
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.6 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 509297 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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