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- EMDB-61958: Cryo-EM structure of ATP-bound P2Y purinoceptor 2-miniGq-Nb35 complex -
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基本情報
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タイトル | Cryo-EM structure of ATP-bound P2Y purinoceptor 2-miniGq-Nb35 complex | |||||||||
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![]() | G protein-coupled receptors / G-protein signaling / Nucleotide receptors / MEMBRANE PROTEIN | |||||||||
機能・相同性 | ![]() G protein-coupled UTP receptor activity / A1 adenosine receptor binding / P2Y receptors / G protein-coupled purinergic nucleotide receptor activity / intracellular monoatomic ion homeostasis / Surfactant metabolism / positive regulation of mucus secretion / cellular response to ATP / PKA activation in glucagon signalling / hair follicle placode formation ...G protein-coupled UTP receptor activity / A1 adenosine receptor binding / P2Y receptors / G protein-coupled purinergic nucleotide receptor activity / intracellular monoatomic ion homeostasis / Surfactant metabolism / positive regulation of mucus secretion / cellular response to ATP / PKA activation in glucagon signalling / hair follicle placode formation / developmental growth / D1 dopamine receptor binding / intracellular transport / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / regulation of insulin secretion / cellular response to glucagon stimulus / adenylate cyclase activator activity / blood vessel diameter maintenance / trans-Golgi network membrane / negative regulation of inflammatory response to antigenic stimulus / bone development / G-protein beta/gamma-subunit complex binding / platelet aggregation / cognition / 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 / adenylate cyclase-activating G protein-coupled 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 / 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 / sensory perception of smell / 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 / signaling receptor activity / Thrombin signalling through proteinase activated receptors (PARs) / positive regulation of cold-induced thermogenesis / G protein activity / GTPase binding / retina development in camera-type eye / Ca2+ pathway / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / fibroblast proliferation / G alpha (i) 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 / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / GTP binding / signal transduction / extracellular exosome / metal ion binding / membrane / plasma membrane / cytosol / cytoplasm 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: 2.83 Å | |||||||||
![]() | Lan B / Zhang S / Liu X / Lin B | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural insight into the self-activation and G-protein coupling of P2Y2 receptor. 著者: Baoliang Lan / Shuhao Zhang / Kai Chen / Shengjie Dai / Jiaqi Fei / Kaixuan Gao / Xiaoou Sun / Bin Lin / Xiangyu Liu / ![]() 要旨: Purinergic P2Y2 receptor (P2Y2R) represents a typically extracellular ATP and UTP sensor for mediating purinergic signaling. Despite its importance as a pharmacological target, the molecular ...Purinergic P2Y2 receptor (P2Y2R) represents a typically extracellular ATP and UTP sensor for mediating purinergic signaling. Despite its importance as a pharmacological target, the molecular mechanisms underlying ligand recognition and G-protein coupling have remained elusive due to lack of structural information. In this study, we determined the cryo-electron microscopy (cryo-EM) structures of the apo P2Y2R in complex with G, ATP-bound P2Y2R in complex with G or G, and UTP-bound P2Y4R in complex with G. These structures reveal the similarities and distinctions of ligand recognition within the P2Y receptor family. Furthermore, a comprehensive analysis of G-protein coupling reveals that P2Y2R exhibits promiscuity in coupling with both G and G proteins. Combining molecular dynamics simulations and signaling assays, we elucidate the molecular mechanisms by which P2Y2R differentiates pathway-specific G or G coupling through distinct structural components on the intracellular side. Strikingly, we identify a helix-like segment within the N-terminus that occupies the orthosteric ligand-binding pocket of P2Y2R, accounting for its self-activation. Taken together, these findings provide a molecular framework for understanding the activation mechanism of P2Y2R, encompassing ligand recognition, G-protein coupling, and a novel N-terminus-mediated self-activation mechanism. | |||||||||
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マップデータ | ![]() | 42.6 MB | ![]() | |
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ヘッダ (付随情報) | ![]() ![]() | 19.4 KB 19.4 KB | 表示 表示 | ![]() |
画像 | ![]() | 67.8 KB | ||
Filedesc metadata | ![]() | 6.5 KB | ||
その他 | ![]() ![]() | 42 MB 42 MB | ||
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「今月の分子」の関連する項目 |
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投影像・断面図 | 画像のコントロール
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ボクセルのサイズ | X=Y=Z: 1.0979 Å | ||||||||||||||||||||||||||||||||||||
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #2
ファイル | emd_61958_half_map_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: #1
ファイル | emd_61958_half_map_2.map | ||||||||||||
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投影像・断面図 |
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試料の構成要素
-全体 : Cryo-EM structure of ATP-bound P2Y purinoceptor 2-miniGq-Nb35 complex
全体 | 名称: Cryo-EM structure of ATP-bound P2Y purinoceptor 2-miniGq-Nb35 complex |
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要素 |
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-超分子 #1: Cryo-EM structure of ATP-bound P2Y purinoceptor 2-miniGq-Nb35 complex
超分子 | 名称: Cryo-EM structure of ATP-bound P2Y purinoceptor 2-miniGq-Nb35 complex タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#5 |
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由来(天然) | 生物種: ![]() |
-分子 #1: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
分子 | 名称: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short タイプ: protein_or_peptide / ID: 1 詳細: The N-terminal sequence of Gi1 is incorporated into the mini-G protein;Certain residues mutated to match Guanine nucleotide-binding protein G(q) subunit コピー数: 1 / 光学異性体: LEVO EC番号: 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 |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 28.01476 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: TLSAEDKAAV ERSKMIEKQL QKDKQVYRAT HRLLLLGADN SGKSTIVKQM RILHGGSGGS GGTSGIFETK FQVDKVNFHM FDVGGQRDE RRKWIQCFND VTAIIFVVDS SDYNRLQEAL NDFKSIWNNR WLRTISVILF LNKQDLLAEK VLAGKSKIED Y FPEFARYT ...文字列: TLSAEDKAAV ERSKMIEKQL QKDKQVYRAT HRLLLLGADN SGKSTIVKQM RILHGGSGGS GGTSGIFETK FQVDKVNFHM FDVGGQRDE RRKWIQCFND VTAIIFVVDS SDYNRLQEAL NDFKSIWNNR WLRTISVILF LNKQDLLAEK VLAGKSKIED Y FPEFARYT TPEDATPEPG EDPRVTRAKY FIRDEFLRIS TASGDGRHYC YPHFTCAVDT ENARRIFNDC KDIILQMNLR EY NLV UniProtKB: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short, Guanine nucleotide-binding protein G(s) subunit alpha isoforms short |
-分子 #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
分子 | 名称: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 タイプ: protein_or_peptide / ID: 2 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 39.418086 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MHHHHHHLEV LFQGPGSSGS ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLV SASQDGKLII WDSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG H TGYLSCCR ...文字列: MHHHHHHLEV LFQGPGSSGS ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLV SASQDGKLII WDSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG H TGYLSCCR FLDDNQIVTS SGDTTCALWD IETGQQTTTF TGHTGDVMSL SLAPDTRLFV SGACDASAKL WDVREGMCRQ TF TGHESDI NAICFFPNGN AFATGSDDAT CRLFDLRADQ ELMTYSHDNI ICGITSVSFS KSGRLLLAGY DDFNCNVWDA LKA DRAGVL AGHDNRVSCL GVTDDGMAVA TGSWDSFLKI WN UniProtKB: 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 | 名称: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 タイプ: protein_or_peptide / ID: 3 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 7.861143 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-分子 #4: P2Y purinoceptor 2
分子 | 名称: P2Y purinoceptor 2 / タイプ: protein_or_peptide / ID: 4 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() |
分子量 | 理論値: 47.053727 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MKTIIALSYI FCLVFADYKD DDDAMAADLG PWNDTINGTW DGDELGYRCR FNEDFKYVLL PVSYGVVCVL GLCLNAVALY IFLCRLKTW NASTTYMFHL AVSDALYAAS LPLLVYYYAR GDHWPFSTVL CKLVRFLFYT NLYCSILFLT CISVHRCLGV L RPLRSLRW ...文字列: MKTIIALSYI FCLVFADYKD DDDAMAADLG PWNDTINGTW DGDELGYRCR FNEDFKYVLL PVSYGVVCVL GLCLNAVALY IFLCRLKTW NASTTYMFHL AVSDALYAAS LPLLVYYYAR GDHWPFSTVL CKLVRFLFYT NLYCSILFLT CISVHRCLGV L RPLRSLRW GRARYARRVA GAVWVLVLAC QAPVLYFVTT SARGGRVTCH DTSAPELFSR FVAYSSVMLG LLFAVPFAVI LV CYVLMAR RLLKPAYGTS GGLPRAKRKS VRTIAVVLAV FALCFLPFHV TRTLYYSFRS LDLSCHTLNA INMAYKVTRP LAS ANSCLN PVLYFLAGQS LVRFARDAKP PTGPSPATPA RRRLGLRRSD RTDMQRIEDV LGSSEDSRRT ESTPAGSENT KDIR LHHHH HHGGSGGLEV LFQGP UniProtKB: P2Y purinoceptor 2 |
-分子 #5: Nanobody 35
分子 | 名称: Nanobody 35 / タイプ: protein_or_peptide / ID: 5 / コピー数: 1 / 光学異性体: LEVO |
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由来(天然) | 生物種: ![]() ![]() |
分子量 | 理論値: 14.686328 KDa |
組換発現 | 生物種: ![]() ![]() |
配列 | 文字列: QVQLQESGGG LVQPGGSLRL SCAASGFTFS NYKMNWVRQA PGKGLEWVSD ISQSGASISY TGSVKGRFTI SRDNAKNTLY LQMNSLKPE DTAVYYCARC PAPFTPFCFD VTSTTYAYRG QGTQVTVSSH HHHHH |
-分子 #6: ADENOSINE-5'-TRIPHOSPHATE
分子 | 名称: ADENOSINE-5'-TRIPHOSPHATE / タイプ: ligand / ID: 6 / コピー数: 1 / 式: ATP |
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分子量 | 理論値: 507.181 Da |
Chemical component information | ![]() ChemComp-ATP: |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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![]() | 単粒子再構成法 |
試料の集合状態 | particle |
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試料調製
緩衝液 | pH: 7.5 |
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凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
顕微鏡 | TFS KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 平均電子線量: 50.0 e/Å2 |
電子線 | 加速電圧: 300 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): 1.6 µm / 最小 デフォーカス(公称値): 1.2 µm |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |