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基本情報
登録情報 | データベース: PDB / ID: 7f9y | |||||||||
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タイトル | ghrelin-bound ghrelin receptor in complex with Gq | |||||||||
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![]() | MEMBRANE PROTEIN / ghrelin / GPCR / Gq | |||||||||
機能・相同性 | ![]() ghrelin receptor binding / negative regulation of locomotion / positive regulation of bone development / positive regulation of gastric mucosal blood circulation / cortisol secretion / growth hormone-releasing hormone activity / negative regulation of circadian sleep/wake cycle, REM sleep / positive regulation of circadian sleep/wake cycle, non-REM sleep / positive regulation of small intestinal transit / regulation of response to food ...ghrelin receptor binding / negative regulation of locomotion / positive regulation of bone development / positive regulation of gastric mucosal blood circulation / cortisol secretion / growth hormone-releasing hormone activity / negative regulation of circadian sleep/wake cycle, REM sleep / positive regulation of circadian sleep/wake cycle, non-REM sleep / positive regulation of small intestinal transit / regulation of response to food / regulation of gastric motility / regulation of transmission of nerve impulse / positive regulation of corticotropin secretion / neuronal dense core vesicle lumen / positive regulation of cortisol secretion / gastric acid secretion / positive regulation of appetite / positive regulation of growth rate / growth hormone secretion / positive regulation of eating behavior / positive regulation of small intestine smooth muscle contraction / positive regulation of growth hormone secretion / adult feeding behavior / positive regulation of growth hormone receptor signaling pathway / actin polymerization or depolymerization / positive regulation of multicellular organism growth / positive regulation of synapse assembly / regulation of postsynapse organization / positive regulation of vascular endothelial cell proliferation / cartilage development / negative regulation of interleukin-1 beta production / positive regulation of sprouting angiogenesis / negative regulation of endothelial cell proliferation / dendrite development / negative regulation of interleukin-6 production / protein tyrosine kinase activator activity / positive regulation of insulin secretion involved in cellular response to glucose stimulus / decidualization / negative regulation of tumor necrosis factor production / Synthesis, secretion, and deacylation of Ghrelin / postsynaptic modulation of chemical synaptic transmission / negative regulation of insulin secretion / response to electrical stimulus / synapse assembly / positive regulation of adipose tissue development / response to hormone / hormone-mediated signaling pathway / negative regulation of angiogenesis / Peptide ligand-binding receptors / excitatory postsynaptic potential / G protein-coupled receptor binding / positive regulation of insulin secretion / Schaffer collateral - CA1 synapse / negative regulation of inflammatory response / 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 / response to estrogen / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / glucose metabolic process / 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 / 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) / regulation of cell population proliferation / positive regulation of cold-induced thermogenesis / GTPase binding / positive regulation of cytosolic calcium ion concentration / Ca2+ pathway / retina development in camera-type eye 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: 2.9 Å | |||||||||
![]() | Wang, Y. / Zhuang, Y. / Xu, P. / Xu, H.E. / Jiang, Y. | |||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Molecular recognition of an acyl-peptide hormone and activation of ghrelin receptor. 著者: Yue Wang / Shimeng Guo / Youwen Zhuang / Ying Yun / Peiyu Xu / Xinheng He / Jia Guo / Wanchao Yin / H Eric Xu / Xin Xie / Yi Jiang / ![]() 要旨: Ghrelin, also called "the hunger hormone", is a gastric peptide hormone that regulates food intake, body weight, as well as taste sensation, reward, cognition, learning and memory. One unique feature ...Ghrelin, also called "the hunger hormone", is a gastric peptide hormone that regulates food intake, body weight, as well as taste sensation, reward, cognition, learning and memory. One unique feature of ghrelin is its acylation, primarily with an octanoic acid, which is essential for its binding and activation of the ghrelin receptor, a G protein-coupled receptor. The multifaceted roles of ghrelin make ghrelin receptor a highly attractive drug target for growth retardation, obesity, and metabolic disorders. Here we present two cryo-electron microscopy structures of G-coupled ghrelin receptor bound to ghrelin and a synthetic agonist, GHRP-6. Analysis of these two structures reveals a unique binding pocket for the octanoyl group, which guides the correct positioning of the peptide to initiate the receptor activation. Together with mutational and functional data, our structures define the rules for recognition of the acylated peptide hormone and activation of ghrelin receptor, and provide structural templates to facilitate drug design targeting ghrelin receptor. | |||||||||
履歴 |
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構造の表示
ムービー |
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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 | ![]() | 230.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 172 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
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アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
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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 AR
#1: タンパク質 | 分子量: 41855.578 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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#6: タンパク質 | 分子量: 74282.609 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 発現宿主: ![]() ![]() |
-Guanine nucleotide-binding protein ... , 2種, 2分子 BG
#2: タンパク質 | 分子量: 40226.992 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 |
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#4: 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 |
-タンパク質・ペプチド / 抗体 , 2種, 2分子 CN
#3: タンパク質・ペプチド | 分子量: 3252.726 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#5: 抗体 | 分子量: 15343.019 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() ![]() |
-非ポリマー , 2種, 3分子 


#7: 化合物 | ChemComp-OCA / |
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#8: 化合物 |
-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: ghrelin-bound ghrelin receptor in complex with Gq / タイプ: COMPLEX / Entity ID: #1-#6 / 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: 7.4 |
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: OTHER / 最大 デフォーカス(公称値): 3000 nm / 最小 デフォーカス(公称値): 500 nm |
撮影 | 電子線照射量: 80 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
CTF補正 | タイプ: NONE |
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3次元再構成 | 解像度: 2.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 522055 / 対称性のタイプ: POINT |