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基本情報
登録情報 | データベース: PDB / ID: 7f1q | |||||||||
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タイトル | Cryo-EM structure of the chemokine receptor CCR5 in complex with MIP-1a and Gi | |||||||||
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![]() | SIGNALING PROTEIN / G Protein-coupled receptor / Chemokine Receptor CCR5 / MIP-1a | |||||||||
機能・相同性 | ![]() chemokine (C-C motif) ligand 5 binding / lymphocyte chemotaxis / granulocyte chemotaxis / CCR1 chemokine receptor binding / positive regulation of microglial cell migration / positive regulation of natural killer cell chemotaxis / negative regulation of macrophage apoptotic process / regulation of behavior / astrocyte cell migration / chemokine receptor activity ...chemokine (C-C motif) ligand 5 binding / lymphocyte chemotaxis / granulocyte chemotaxis / CCR1 chemokine receptor binding / positive regulation of microglial cell migration / positive regulation of natural killer cell chemotaxis / negative regulation of macrophage apoptotic process / regulation of behavior / astrocyte cell migration / chemokine receptor activity / CCR5 chemokine receptor binding / eosinophil degranulation / CCR chemokine receptor binding / regulation of sensory perception of pain / signaling / negative regulation of bone mineralization / positive regulation of microglial cell activation / cell activation / C-C chemokine receptor activity / phosphatidylinositol-4,5-bisphosphate phospholipase C activity / T cell chemotaxis / chemokine-mediated signaling pathway / C-C chemokine binding / eosinophil chemotaxis / positive regulation of calcium ion transport / response to cholesterol / chemokine activity / Chemokine receptors bind chemokines / release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / dendritic cell chemotaxis / phospholipase activator activity / Interleukin-10 signaling / positive regulation of calcium ion import / chemoattractant activity / macrophage chemotaxis / exocytosis / negative regulation of osteoclast differentiation / monocyte chemotaxis / cellular response to interleukin-1 / negative regulation by host of viral transcription / Binding and entry of HIV virion / cellular defense response / positive regulation of protein localization to cell cortex / Adenylate cyclase inhibitory pathway / T cell migration / coreceptor activity / D2 dopamine receptor binding / response to prostaglandin E / G protein-coupled serotonin receptor binding / adenylate cyclase regulator activity / adenylate cyclase-inhibiting serotonin receptor signaling pathway / cytoskeleton organization / neutrophil chemotaxis / cellular response to forskolin / regulation of mitotic spindle organization / positive regulation of calcium-mediated signaling / positive regulation of interleukin-1 beta production / cell chemotaxis / Regulation of insulin secretion / positive regulation of cholesterol biosynthetic process / G protein-coupled receptor binding / calcium-mediated signaling / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / cellular response to type II interferon / response to peptide hormone / G-protein beta/gamma-subunit complex binding / centriolar satellite / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / response to toxic substance / G-protein activation / intracellular calcium ion homeostasis / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / positive regulation of inflammatory response / Prostacyclin signalling through prostacyclin receptor / antimicrobial humoral immune response mediated by antimicrobial peptide / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / chemotaxis / photoreceptor disc membrane / calcium ion transport / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / positive regulation of tumor necrosis factor production / osteoblast differentiation / Vasopressin regulates renal water homeostasis via Aquaporins / GDP binding / kinase activity / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion 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: 2.9 Å | |||||||||
![]() | Zhang, H. / Chen, K. / Tan, Q. / Han, S. / Zhu, Y. / Zhao, Q. / Wu, B. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural basis for chemokine recognition and receptor activation of chemokine receptor CCR5. 著者: Hui Zhang / Kun Chen / Qiuxiang Tan / Qiang Shao / Shuo Han / Chenhui Zhang / Cuiying Yi / Xiaojing Chu / Ya Zhu / Yechun Xu / Qiang Zhao / Beili Wu / ![]() 要旨: The chemokine receptor CCR5 plays a vital role in immune surveillance and inflammation. However, molecular details that govern its endogenous chemokine recognition and receptor activation remain ...The chemokine receptor CCR5 plays a vital role in immune surveillance and inflammation. However, molecular details that govern its endogenous chemokine recognition and receptor activation remain elusive. Here we report three cryo-electron microscopy structures of G protein-coupled CCR5 in a ligand-free state and in complex with the chemokine MIP-1α or RANTES, as well as the crystal structure of MIP-1α-bound CCR5. These structures reveal distinct binding modes of the two chemokines and a specific accommodate pattern of the chemokine for the distal N terminus of CCR5. Together with functional data, the structures demonstrate that chemokine-induced rearrangement of toggle switch and plasticity of the receptor extracellular region are critical for receptor activation, while a conserved tryptophan residue in helix II acts as a trigger of receptor constitutive activation. | |||||||||
履歴 |
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 199.2 KB | 表示 | ![]() |
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PDB形式 | ![]() | 144.8 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
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アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-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: タンパク質 | 分子量: 51241.047 Da / 分子数: 1 / 変異: T15R,T112C,G259N / 由来タイプ: 組換発現 / 詳細: Fusion protein of MIP-1a and CCR5 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P10147, UniProt: P51681 |
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#2: タンパク質 | 分子量: 40447.141 Da / 分子数: 1 / 変異: S47C,G202T,G203A,E245A,A326S / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P63096 |
#3: タンパク質 | 分子量: 37416.930 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P62873 |
#4: タンパク質 | 分子量: 7861.143 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P59768 |
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: Chemokine receptor CCR5 in complex with MIP-1a and Gi タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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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 |
撮影 | 電子線照射量: 2.1875 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
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3次元再構成 | 解像度: 2.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 7095732 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
精密化 | 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 55.63 Å2 | ||||||||||||||||||||||||
拘束条件 |
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