+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7l1u | ||||||
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タイトル | Orexin Receptor 2 (OX2R) in Complex with G Protein and Natural Peptide-Agonist Orexin B (OxB) | ||||||
要素 |
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キーワード | MEMBRANE PROTEIN / Class A GPCR / Orexin receptor 2 / OX2R / Peptide agonist | ||||||
機能・相同性 | 機能・相同性情報 type 1 orexin receptor binding / type 2 orexin receptor binding / regulation of circadian sleep/wake cycle, wakefulness / circadian sleep/wake cycle process / orexin receptor activity / negative regulation of transmission of nerve impulse / Orexin and neuropeptides FF and QRFP bind to their respective receptors / positive regulation of transmission of nerve impulse / neuropeptide receptor activity / regulation of neurotransmitter secretion ...type 1 orexin receptor binding / type 2 orexin receptor binding / regulation of circadian sleep/wake cycle, wakefulness / circadian sleep/wake cycle process / orexin receptor activity / negative regulation of transmission of nerve impulse / Orexin and neuropeptides FF and QRFP bind to their respective receptors / positive regulation of transmission of nerve impulse / neuropeptide receptor activity / regulation of neurotransmitter secretion / neuropeptide hormone activity / positive regulation of calcium ion transport / sleep / locomotion / : / feeding behavior / temperature homeostasis / eating behavior / negative regulation of DNA replication / response to starvation / negative regulation of potassium ion transport / peptide hormone binding / neuropeptide signaling pathway / rough endoplasmic reticulum / cellular response to hormone stimulus / regulation of cytosolic calcium ion concentration / excitatory postsynaptic potential / secretory granule / peptide binding / 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 / 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 / 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 / GPER1 signaling / 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 / synaptic vesicle / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / positive regulation of cold-induced thermogenesis / 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 / chemical synaptic transmission / G alpha (q) signalling events / Ras protein signal transduction / postsynapse / cell population proliferation / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / perinuclear region of cytoplasm / signal transduction / extracellular exosome / extracellular region / membrane / plasma membrane / cytosol / cytoplasm 類似検索 - 分子機能 | ||||||
生物種 | Homo sapiens (ヒト) Mus musculus (ハツカネズミ) | ||||||
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: 3.2 Å | ||||||
データ登録者 | Hong, C. / Byrne, N.J. / Zamlynny, B. / Tummala, S. / Xiao, L. / Shipman, J.M. / Partridge, A.T. / Minnick, C. / Breslin, M.J. / Rudd, M.T. ...Hong, C. / Byrne, N.J. / Zamlynny, B. / Tummala, S. / Xiao, L. / Shipman, J.M. / Partridge, A.T. / Minnick, C. / Breslin, M.J. / Rudd, M.T. / Stachel, S.J. / Rada, V.L. / Kern, J.C. / Armacost, K.A. / Hollingsworth, S.A. / O'Brien, J.A. / Hall, D.L. / McDonald, T.P. / Strickland, C. / Brooun, A. / Soisson, S.M. / Hollenstein, K. | ||||||
引用 | ジャーナル: Nat Commun / 年: 2021 タイトル: Structures of active-state orexin receptor 2 rationalize peptide and small-molecule agonist recognition and receptor activation. 著者: Chuan Hong / Noel J Byrne / Beata Zamlynny / Srivanya Tummala / Li Xiao / Jennifer M Shipman / Andrea T Partridge / Christina Minnick / Michael J Breslin / Michael T Rudd / Shawn J Stachel / ...著者: Chuan Hong / Noel J Byrne / Beata Zamlynny / Srivanya Tummala / Li Xiao / Jennifer M Shipman / Andrea T Partridge / Christina Minnick / Michael J Breslin / Michael T Rudd / Shawn J Stachel / Vanessa L Rada / Jeffrey C Kern / Kira A Armacost / Scott A Hollingsworth / Julie A O'Brien / Dawn L Hall / Terrence P McDonald / Corey Strickland / Alexei Brooun / Stephen M Soisson / Kaspar Hollenstein / 要旨: Narcolepsy type 1 (NT1) is a chronic neurological disorder that impairs the brain's ability to control sleep-wake cycles. Current therapies are limited to the management of symptoms with modest ...Narcolepsy type 1 (NT1) is a chronic neurological disorder that impairs the brain's ability to control sleep-wake cycles. Current therapies are limited to the management of symptoms with modest effectiveness and substantial adverse effects. Agonists of the orexin receptor 2 (OXR) have shown promise as novel therapeutics that directly target the pathophysiology of the disease. However, identification of drug-like OXR agonists has proven difficult. Here we report cryo-electron microscopy structures of active-state OXR bound to an endogenous peptide agonist and a small-molecule agonist. The extended carboxy-terminal segment of the peptide reaches into the core of OXR to stabilize an active conformation, while the small-molecule agonist binds deep inside the orthosteric pocket, making similar key interactions. Comparison with antagonist-bound OXR suggests a molecular mechanism that rationalizes both receptor activation and inhibition. Our results enable structure-based discovery of therapeutic orexin agonists for the treatment of NT1 and other hypersomnia disorders. | ||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7l1u.cif.gz | 211.2 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7l1u.ent.gz | 165 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7l1u.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 | 7l1u_validation.pdf.gz | 739.3 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 7l1u_full_validation.pdf.gz | 743.3 KB | 表示 | |
XML形式データ | 7l1u_validation.xml.gz | 34.1 KB | 表示 | |
CIF形式データ | 7l1u_validation.cif.gz | 53.2 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/l1/7l1u ftp://data.pdbj.org/pub/pdb/validation_reports/l1/7l1u | 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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-要素
-タンパク質 , 2種, 2分子 AR
#1: タンパク質 | 分子量: 28040.881 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: Escherichia coli (大腸菌) |
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#5: タンパク質 | 分子量: 43470.875 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: HCRTR2 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q548Y0, UniProt: O43614*PLUS |
-Guanine nucleotide-binding protein ... , 2種, 2分子 BC
#2: タンパク質 | 分子量: 38579.148 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: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P62873 |
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#3: タンパク質 | 分子量: 7845.078 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: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P59768 |
-抗体 / タンパク質・ペプチド , 2種, 2分子 HL
#4: 抗体 | 分子量: 26610.615 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: Escherichia coli (大腸菌) |
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#6: タンパク質・ペプチド | 分子量: 2902.364 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) Homo sapiens (ヒト) / 参照: UniProt: O43612 |
-詳細
研究の焦点であるリガンドがあるか | N |
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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 |
-試料調製
構成要素 | 名称: Orexin Receptor 2 (OX2R) in Complex with G Protein and Natural Peptide-Agonist Orexin B (OxB) タイプ: COMPLEX / Entity ID: #1-#5 / 由来: MULTIPLE SOURCES | ||||||||||||||||||||||||||||||
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分子量 | 実験値: NO | ||||||||||||||||||||||||||||||
由来(天然) | 生物種: Homo sapiens (ヒト) | ||||||||||||||||||||||||||||||
由来(組換発現) |
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緩衝液 | pH: 7.6 | ||||||||||||||||||||||||||||||
緩衝液成分 |
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試料 | 濃度: 5 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | ||||||||||||||||||||||||||||||
試料支持 | 詳細: Carbon side facing up / グリッドの材料: GOLD / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: C-flat | ||||||||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 95 % / 凍結前の試料温度: 277 K |
-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 / 倍率(公称値): 105000 X / 倍率(補正後): 59524 X / 最大 デフォーカス(公称値): 1800 nm / 最小 デフォーカス(公称値): 800 nm / Calibrated defocus min: 600 nm / 最大 デフォーカス(補正後): 2200 nm / Cs: 2.7 mm / C2レンズ絞り径: 50 µm / アライメント法: BASIC |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER 最高温度: 93 K / 最低温度: 83 K |
撮影 | 平均露光時間: 0.05 sec. / 電子線照射量: 1.0625 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) 撮影したグリッド数: 3 / 実像数: 38810 / 詳細: 40 frames with total 2second exposure |
電子光学装置 | エネルギーフィルター名称: GIF Bioquantum / エネルギーフィルタースリット幅: 20 eV |
画像スキャン | サンプリングサイズ: 5 µm / 横: 5700 / 縦: 4100 |
-解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 14000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 800000 / アルゴリズム: FOURIER SPACE / 詳細: Gold standard and masking effect correction / クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 | B value: 131 / プロトコル: AB INITIO MODEL / 空間: REAL / Target criteria: Correlation | ||||||||||||||||||||||||||||||||||||||||||||||||||
原子モデル構築 |
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