+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7y66 | ||||||
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タイトル | Cryo-EM structure of BM213-bound C5aR1 in complex with Gi protein | ||||||
要素 |
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キーワード | MEMBRANE PROTEIN / Complex / Agonist | ||||||
機能・相同性 | 機能・相同性情報 complement component C5a signaling pathway / presynapse organization / regulation of tau-protein kinase activity / complement component C5a receptor activity / response to peptidoglycan / sensory perception of chemical stimulus / complement receptor mediated signaling pathway / positive regulation of neutrophil chemotaxis / positive regulation of macrophage chemotaxis / amyloid-beta clearance ...complement component C5a signaling pathway / presynapse organization / regulation of tau-protein kinase activity / complement component C5a receptor activity / response to peptidoglycan / sensory perception of chemical stimulus / complement receptor mediated signaling pathway / positive regulation of neutrophil chemotaxis / positive regulation of macrophage chemotaxis / amyloid-beta clearance / positive regulation of vascular endothelial growth factor production / T cell migration / D2 dopamine receptor binding / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / cellular defense response / regulation of cAMP-mediated signaling / G protein-coupled serotonin receptor binding / cellular response to forskolin / regulation of mitotic spindle organization / neutrophil chemotaxis / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / positive regulation of epithelial cell proliferation / Peptide ligand-binding receptors / secretory granule membrane / Regulation of Complement cascade / Regulation of insulin secretion / G protein-coupled receptor binding / G protein-coupled receptor activity / astrocyte activation / microglial cell activation / mRNA transcription by RNA polymerase II / G-protein beta/gamma-subunit complex binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / 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 / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / response to peptide hormone / cognition / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / cellular response to catecholamine stimulus / positive regulation of angiogenesis / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / chemotaxis / GPER1 signaling / GDP binding / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / apical part of cell / GTPase binding / retina development in camera-type eye / Ca2+ pathway / cell cortex / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cytosolic calcium ion concentration / midbody / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 / basolateral plasma membrane / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / positive regulation of ERK1 and ERK2 cascade / defense response to Gram-positive bacterium / inflammatory response / immune response / G protein-coupled receptor signaling pathway / lysosomal membrane 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) Mus musculus (ハツカネズミ) synthetic construct (人工物) | ||||||
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 | ||||||
データ登録者 | Feng, Y.Y. / Zhao, C. / Yan, W. / Shao, Z.H. | ||||||
資金援助 | 中国, 1件
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引用 | ジャーナル: Cell Res / 年: 2023 タイトル: Mechanism of activation and biased signaling in complement receptor C5aR1. 著者: Yuying Feng / Chang Zhao / Yue Deng / Heli Wang / Liang Ma / Sicen Liu / Xiaowen Tian / Bo Wang / Yan Bin / Peipei Chen / Wei Yan / Ping Fu / Zhenhua Shao / 要旨: The complement system plays an important role in the innate immune response to invading pathogens. The complement fragment C5a is one of its important effector components and exerts diverse ...The complement system plays an important role in the innate immune response to invading pathogens. The complement fragment C5a is one of its important effector components and exerts diverse physiological functions through activation of the C5a receptor 1 (C5aR1) and associated downstream G protein and β-arrestin signaling pathways. Dysfunction of the C5a-C5aR1 axis is linked to numerous inflammatory and immune-mediated diseases, but the structural basis for activation and biased signaling of C5aR1 remains elusive. Here, we present cryo-electron microscopy structures of the activated wild-type C5aR1-G protein complex bound to each of the following: C5a, the hexapeptidic agonist C5a, and the G protein-biased agonist BM213. The structures reveal the landscape of the C5a-C5aR1 interaction as well as a common motif for the recognition of diverse orthosteric ligands. Moreover, combined with mutagenesis studies and cell-based pharmacological assays, we deciphered a framework for biased signaling using different peptide analogs and provided insight into the activation mechanism of C5aR1 by solving the structure of C5aR1 mutant-G signaling activation complex induced by C089, which exerts antagonism on wild-type C5aR1. In addition, unusual conformational changes in the intracellular end of transmembrane domain 7 and helix 8 upon agonist binding suggest a differential signal transduction process. Collectively, our study provides mechanistic understanding into the ligand recognition, biased signaling modulation, activation, and G protein coupling of C5aR1, which may facilitate the future design of therapeutic agents. | ||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7y66.cif.gz | 232.6 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7y66.ent.gz | 177.5 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7y66.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
文書・要旨 | 7y66_validation.pdf.gz | 1 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7y66_full_validation.pdf.gz | 1.1 MB | 表示 | |
XML形式データ | 7y66_validation.xml.gz | 40.7 KB | 表示 | |
CIF形式データ | 7y66_validation.cif.gz | 60.2 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/y6/7y66 ftp://data.pdbj.org/pub/pdb/validation_reports/y6/7y66 | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-Guanine nucleotide-binding protein ... , 3種, 3分子 ABC
#1: タンパク質 | 分子量: 40415.031 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GNAI1 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P63096 |
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#2: タンパク質 | 分子量: 39141.793 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: GNB1 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P62873 |
#3: 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) Homo sapiens (ヒト) / 遺伝子: GNG2 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P59768 |
-抗体 / タンパク質 / タンパク質・ペプチド , 3種, 3分子 SDE
#4: 抗体 | 分子量: 28767.984 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Mus musculus (ハツカネズミ) 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) |
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#5: タンパク質 | 分子量: 38415.238 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: C5AR1, C5AR, C5R1 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P21730 |
#6: タンパク質・ペプチド | 分子量: 901.106 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) synthetic construct (人工物) |
-詳細
研究の焦点であるリガンドがあるか | Y |
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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 |
-試料調製
構成要素 |
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由来(天然) |
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由来(組換発現) |
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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 |
-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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 1800 nm / 最小 デフォーカス(公称値): 1000 nm / Cs: 2.7 mm |
撮影 | 電子線照射量: 66 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
-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: 2.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 6361876 / 対称性のタイプ: POINT |