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基本情報
登録情報 | データベース: PDB / ID: 8yut | ||||||
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タイトル | Cryo-EM structure of the amthamine-bound H2R-Gs complex | ||||||
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![]() | MEMBRANE PROTEIN/IMMUNE SYSTEM / GPCR / H2R / Histamine Receptor / MEMBRANE PROTEIN-IMMUNE SYSTEM complex | ||||||
機能・相同性 | ![]() gastric acid secretion / Histamine receptors / histamine receptor activity / neurotransmitter receptor activity / positive regulation of vasoconstriction / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors ...gastric acid secretion / Histamine receptors / histamine receptor activity / neurotransmitter receptor activity / positive regulation of vasoconstriction / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / 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 / 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 / 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 / ADP signalling through P2Y purinoceptor 1 / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / 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 / 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) / retina development in camera-type eye / GTPase binding / Ca2+ pathway / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / chemical synaptic transmission / G alpha (q) signalling events / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / immune response / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / dendrite / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | ![]() 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: 2.7 Å | ||||||
![]() | Shen, Q. / Tang, X. / Wen, X. / Cheng, S. / Xiao, P. / Zang, S. / Shen, D. / Jiang, L. / Zheng, Y. / Zhang, H. ...Shen, Q. / Tang, X. / Wen, X. / Cheng, S. / Xiao, P. / Zang, S. / Shen, D. / Jiang, L. / Zheng, Y. / Zhang, H. / Xu, H. / Mao, C. / Zhang, M. / Hu, W. / Sun, J. / Chen, Z. / Zhang, Y. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Molecular Determinant Underlying Selective Coupling of Primary G-Protein by Class A GPCRs. 著者: Qingya Shen / Xinyan Tang / Xin Wen / Shizhuo Cheng / Peng Xiao / Shao-Kun Zang / Dan-Dan Shen / Lei Jiang / Yanrong Zheng / Huibing Zhang / Haomang Xu / Chunyou Mao / Min Zhang / Weiwei Hu / ...著者: Qingya Shen / Xinyan Tang / Xin Wen / Shizhuo Cheng / Peng Xiao / Shao-Kun Zang / Dan-Dan Shen / Lei Jiang / Yanrong Zheng / Huibing Zhang / Haomang Xu / Chunyou Mao / Min Zhang / Weiwei Hu / Jin-Peng Sun / Yan Zhang / Zhong Chen / ![]() 要旨: G-protein-coupled receptors (GPCRs) transmit downstream signals predominantly via G-protein pathways. However, the conformational basis of selective coupling of primary G-protein remains elusive. ...G-protein-coupled receptors (GPCRs) transmit downstream signals predominantly via G-protein pathways. However, the conformational basis of selective coupling of primary G-protein remains elusive. Histamine receptors HR and HR couple with G- or G-proteins respectively. Here, three cryo-EM structures of HR-G and HR-G complexes are presented at a global resolution of 2.6-2.7 Å. These structures reveal the unique binding pose for endogenous histamine in HR, wherein the amino group interacts with E206 of HR instead of the conserved D114 of other aminergic receptors. Furthermore, comparative analysis of the HR-G and HR-G complexes reveals that the structural geometry of TM5/TM6 determines the primary G-protein selectivity in histamine receptors. Machine learning (ML)-based structuromic profiling and functional analysis of class A GPCR-G-protein complexes illustrate that TM5 length, TM5 tilt, and TM6 outward movement are key determinants of the G and G selectivity among the whole Class A family. Collectively, the findings uncover the common structural geometry within class A GPCRs that determines the primary G- and G-coupling selectivity. | ||||||
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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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PDBx/mmCIF形式 | ![]() | 210.3 KB | 表示 | ![]() |
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PDB形式 | ![]() | 表示 | ![]() | |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
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-検証レポート
文書・要旨 | ![]() | 515.7 KB | 表示 | ![]() |
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文書・詳細版 | ![]() | 522.5 KB | 表示 | |
XML形式データ | ![]() | 20.9 KB | 表示 | |
CIF形式データ | ![]() | 32.2 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 | ![]() 39582MC ![]() 8yuuC ![]() 8yuvC 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
-Guanine nucleotide-binding protein ... , 3種, 3分子 ABG
#1: タンパク質 | 分子量: 43883.762 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: 39141.793 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 |
#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) ![]() 発現宿主: ![]() ![]() 参照: UniProt: P59768 |
-抗体 / タンパク質 , 2種, 2分子 NR
#4: 抗体 | 分子量: 13885.439 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) synthetic construct (人工物) 発現宿主: ![]() ![]() |
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#5: タンパク質 | 分子量: 46456.023 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: P25021 |
-非ポリマー , 2種, 2分子 
#6: 化合物 | ChemComp-A1D67 / 分子量: 157.237 Da / 分子数: 1 / 由来タイプ: 合成 / 式: C6H11N3S / タイプ: SUBJECT OF INVESTIGATION |
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#7: 化合物 | ChemComp-CLR / |
-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 |
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試料調製
構成要素 | 名称: amthamine-bound H2R-Gs complex / タイプ: COMPLEX / Entity ID: #1-#5 / 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 | 装置: FEI VITROBOT MARK IV / 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: 62 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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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: 2.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 368447 / 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 | ||||||||||||||||||||||||
精密化 | 交差検証法: NONE 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: 38.91 Å2 | ||||||||||||||||||||||||
拘束条件 |
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