+
データを開く
-
基本情報
登録情報 | ![]() | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
タイトル | Structure of EP54-C3aR-Gq complex | |||||||||||||||
![]() | ||||||||||||||||
![]() |
| |||||||||||||||
![]() | GPCR / G protein / SIGNALING PROTEIN-IMMUNE SYSTEM complex | |||||||||||||||
機能・相同性 | ![]() complement component C3a receptor activity / complement component C5a receptor activity / complement receptor mediated signaling pathway / positive regulation of neutrophil chemotaxis / blood circulation / azurophil granule membrane / positive regulation of macrophage chemotaxis / positive regulation of vascular endothelial growth factor production / Purinergic signaling in leishmaniasis infection / specific granule membrane ...complement component C3a receptor activity / complement component C5a receptor activity / complement receptor mediated signaling pathway / positive regulation of neutrophil chemotaxis / blood circulation / azurophil granule membrane / positive regulation of macrophage chemotaxis / positive regulation of vascular endothelial growth factor production / Purinergic signaling in leishmaniasis infection / specific granule membrane / Peptide ligand-binding receptors / Regulation of Complement cascade / G protein-coupled receptor activity / calcium-mediated signaling / 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 / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / positive regulation of angiogenesis / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / chemotaxis / 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) / GTPase binding / retina development in camera-type eye / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cytosolic calcium ion concentration / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / inflammatory response / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / Neutrophil degranulation / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytoplasm / cytosol 類似検索 - 分子機能 | |||||||||||||||
生物種 | ![]() ![]() ![]() | |||||||||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.57 Å | |||||||||||||||
![]() | Yadav MK / Yadav R / Maharana J / Sarma P / Banerjee R / Shukla AK / Gati C | |||||||||||||||
資金援助 | ![]() ![]()
| |||||||||||||||
![]() | ![]() 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. | |||||||||||||||
履歴 |
|
-
構造の表示
添付画像 |
---|
-
ダウンロードとリンク
-EMDBアーカイブ
マップデータ | ![]() | 167.9 MB | ![]() | |
---|---|---|---|---|
ヘッダ (付随情報) | ![]() ![]() | 25.6 KB 25.6 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 11.9 KB | 表示 | ![]() |
画像 | ![]() | 38.1 KB | ||
Filedesc metadata | ![]() | 7.2 KB | ||
その他 | ![]() ![]() | 165.4 MB 165.4 MB | ||
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 | ![]() 8i9aMC ![]() 8hptC ![]() 8hqcC ![]() 8i95C ![]() 8i97C ![]() 8i9lC ![]() 8i9sC ![]() 8ia2C ![]() 8j6dC ![]() 8jzzC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
---|---|
類似構造データ | 類似検索 - 機能・相同性 ![]() |
-
リンク
EMDBのページ | ![]() ![]() |
---|---|
「今月の分子」の関連する項目 |
-
マップ
ファイル | ![]() | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ボクセルのサイズ | X=Y=Z: 0.92 Å | ||||||||||||||||||||
密度 |
| ||||||||||||||||||||
対称性 | 空間群: 1 | ||||||||||||||||||||
詳細 | EMDB XML:
|
-添付データ
-ハーフマップ: Half map B
ファイル | emd_35263_half_map_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | Half map B | ||||||||||||
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-ハーフマップ: Half map B
ファイル | emd_35263_half_map_2.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | Half map B | ||||||||||||
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-
試料の構成要素
+全体 : Structure of EP54-C3aR-Gq complex
+超分子 #1: Structure of EP54-C3aR-Gq complex
+超分子 #2: Guanine nucleotide-binding protein G(q) subunit alpha
+超分子 #3: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
+超分子 #4: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
+超分子 #5: Antibody fragment - ScFv16
+超分子 #6: C3a anaphylatoxin chemotactic receptor
+超分子 #7: EP54 ligand
+分子 #1: Guanine nucleotide-binding protein G(q) subunit alpha
+分子 #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
+分子 #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
+分子 #4: Antibody fragment - ScFv16
+分子 #5: C3a anaphylatoxin chemotactic receptor
+分子 #6: EP54 ligand
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
---|---|
![]() | 単粒子再構成法 |
試料の集合状態 | particle |
-
試料調製
緩衝液 | pH: 7.4 |
---|---|
凍結 | 凍結剤: ETHANE |
-
電子顕微鏡法
顕微鏡 | TFS GLACIOS |
---|---|
撮影 | フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) 検出モード: COUNTING / 実像数: 4445 / 平均電子線量: 50.0 e/Å2 |
電子線 | 加速電圧: 200 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3.0 µm / 最小 デフォーカス(公称値): 0.8 µm |