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基本情報
登録情報 | データベース: PDB / ID: 8hqc | ||||||
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タイトル | Structure of a GPCR-G protein in complex with a natural peptide agonist | ||||||
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![]() | SIGNALING PROTEIN/IMMUNE SYSTEM / GPCR / G protein / SIGNALING PROTEIN / SIGNALING PROTEIN-IMMUNE SYSTEM complex | ||||||
機能・相同性 | ![]() presynapse organization / Peptide ligand-binding receptors / complement component C5a receptor activity / Regulation of Complement cascade / Terminal pathway of complement / response to peptidoglycan / membrane attack complex / G alpha (i) signalling events / Activation of C3 and C5 / negative regulation of macrophage chemotaxis ...presynapse organization / Peptide ligand-binding receptors / complement component C5a receptor activity / Regulation of Complement cascade / Terminal pathway of complement / response to peptidoglycan / membrane attack complex / G alpha (i) signalling events / Activation of C3 and C5 / negative regulation of macrophage chemotaxis / mu-type opioid receptor binding / corticotropin-releasing hormone receptor 1 binding / complement activation, alternative pathway / vesicle docking involved in exocytosis / chemokine activity / positive regulation of neutrophil chemotaxis / G protein-coupled dopamine receptor signaling pathway / endopeptidase inhibitor activity / regulation of heart contraction / parallel fiber to Purkinje cell synapse / positive regulation of macrophage chemotaxis / amyloid-beta clearance / positive regulation of vascular endothelial growth factor production / complement activation, classical pathway / postsynaptic modulation of chemical synaptic transmission / negative regulation of insulin secretion / positive regulation of chemokine production / G protein-coupled serotonin receptor binding / adenylate cyclase regulator activity / adenylate cyclase-inhibiting serotonin receptor signaling pathway / muscle contraction / neutrophil chemotaxis / Neutrophil degranulation / Peptide ligand-binding receptors / positive regulation of epithelial cell proliferation / Regulation of Complement cascade / GABA-ergic synapse / locomotory behavior / astrocyte activation / microglial cell activation / mRNA transcription by RNA polymerase II / G protein-coupled receptor activity / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / cognition / 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 / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / positive regulation of angiogenesis / 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 / 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 / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / apical part of cell / GPER1 signaling / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / presynaptic membrane / G protein activity / cell body / GTPase binding / Ca2+ pathway / retina development in camera-type eye / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / cytoplasmic vesicle / fibroblast proliferation / G alpha (i) signalling events / basolateral plasma membrane / 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 / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway 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: 3.89 Å | ||||||
![]() | Saha, S. / Maharana, J. / Yadav, M.K. / Sarma, P. / Chami, M. / Banerjee, R. / Shukla, A.K. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Molecular basis of anaphylatoxin binding, activation, and signaling bias at complement receptors. 著者: Manish K Yadav / Jagannath Maharana / Ravi Yadav / Shirsha Saha / Parishmita Sarma / Chahat Soni / Vinay Singh / Sayantan Saha / Manisankar Ganguly / Xaria X Li / Samanwita Mohapatra / Sudha ...著者: Manish K Yadav / Jagannath Maharana / Ravi Yadav / Shirsha Saha / Parishmita Sarma / Chahat Soni / Vinay Singh / Sayantan Saha / Manisankar Ganguly / Xaria X Li / Samanwita Mohapatra / Sudha Mishra / Htet A Khant / Mohamed Chami / Trent M Woodruff / Ramanuj Banerjee / Arun K Shukla / Cornelius Gati / ![]() ![]() ![]() ![]() 要旨: The complement system is a critical part of our innate immune response, and the terminal products of this cascade, anaphylatoxins C3a and C5a, exert their physiological and pathophysiological ...The complement system is a critical part of our innate immune response, and the terminal products of this cascade, anaphylatoxins C3a and C5a, exert their physiological and pathophysiological responses primarily via two GPCRs, C3aR and C5aR1. However, the molecular mechanism of ligand recognition, activation, and signaling bias of these receptors remains mostly elusive. Here, we present nine cryo-EM structures of C3aR and C5aR1 activated by their natural and synthetic agonists, which reveal distinct binding pocket topologies of complement anaphylatoxins and provide key insights into receptor activation and transducer coupling. We also uncover the structural basis of a naturally occurring mechanism to dampen the inflammatory response of C5a via proteolytic cleavage of the terminal arginine and the G-protein signaling bias elicited by a peptide agonist of C3aR identified here. In summary, our study elucidates the innerworkings of the complement anaphylatoxin receptors and should facilitate structure-guided drug discovery to target these receptors in a spectrum of disorders. #1: ![]() タイトル: Structure of a GPCR-G protein in complex with a synthetic peptide agonist 著者: Saha, S. / Maharana, J. / Yadav, M.K. / Sarma, P. / Chami, M. / Banerjee, R. / Shukla, A.K. | ||||||
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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 | ![]() | 214.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 161.4 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 | ![]() | 1.2 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.2 MB | 表示 | |
XML形式データ | ![]() | 48.4 KB | 表示 | |
CIF形式データ | ![]() | 72.8 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 | ![]() 34947MC ![]() 8hptC ![]() 8i95C ![]() 8i97C ![]() 8i9aC ![]() 8i9lC ![]() 8i9sC ![]() 8ia2C ![]() 8j6dC ![]() 8jzzC 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
-タンパク質 , 2種, 2分子 AD
#1: タンパク質 | 分子量: 44958.422 Da / 分子数: 1 / 由来タイプ: 組換発現 詳細: The initial sequence in the sample sequence is the expression tag (absent in the coordinates): "MGKTIIALSYIFCLVFADYKDDDDAANFTPVNGSSGNQSVRLVTSSSLEVLFQGPGSDPIDNSSFEINYDHYGTMDPNI" The residues ...詳細: The initial sequence in the sample sequence is the expression tag (absent in the coordinates): "MGKTIIALSYIFCLVFADYKDDDDAANFTPVNGSSGNQSVRLVTSSSLEVLFQGPGSDPIDNSSFEINYDHYGTMDPNI" The residues absent in the coordinates and present in the sample sequence belongs to disordered regions. 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() 参照: UniProt: P30993 |
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#4: タンパク質 | 分子量: 8288.676 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
-Guanine nucleotide-binding protein ... , 3種, 3分子 BCG
#2: タンパク質 | 分子量: 27024.762 Da / 分子数: 1 / Mutation: G42D,E43N,A227D,G230D,I332A,V335I / 由来タイプ: 組換発現 詳細: This is a variant of Guanine nucleotide-binding protein G(o) subunit alpha called the "mini G(o) alpha";Expression tag: "MGHHHHHHENLYFQGT" Residues absent in the coordinates: Disordered ...詳細: This is a variant of Guanine nucleotide-binding protein G(o) subunit alpha called the "mini G(o) alpha";Expression tag: "MGHHHHHHENLYFQGT" Residues absent in the coordinates: Disordered regions,This is a variant of Guanine nucleotide-binding protein G(o) subunit alpha called the "mini G(o) alpha";Expression tag: "MGHHHHHHENLYFQGT" Residues absent in the coordinates: Disordered regions 由来: (組換発現) ![]() ![]() ![]() |
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#3: タンパク質 | 分子量: 38534.062 Da / 分子数: 1 / 由来タイプ: 組換発現 / 詳細: Expression tag: "MHHHHHHGSSGS" / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P62873 |
#5: タンパク質 | 分子量: 7861.143 Da / 分子数: 1 / 由来タイプ: 組換発現 詳細: Residues absent in the coordinates: Disordered regions 由来: (組換発現) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P59768 |
-抗体 , 1種, 1分子 H
#6: 抗体 | 分子量: 27340.482 Da / 分子数: 1 / 由来タイプ: 組換発現 詳細: Residues absent in the coordinate file: Disordered regions 由来: (組換発現) ![]() ![]() ![]() ![]() |
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-詳細
Has protein modification | Y |
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-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 |
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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: 7.4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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): 2500 nm / 最小 デフォーカス(公称値): 500 nm |
撮影 | 電子線照射量: 42 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
画像スキャン | 動画フレーム数/画像: 40 |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.19.2_4158: / 分類: 精密化 | ||||||||||||||||||||||||
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EMソフトウェア |
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.89 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 173416 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | プロトコル: FLEXIBLE FIT / 空間: REAL | ||||||||||||||||||||||||
拘束条件 |
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