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データを開く
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基本情報
| 登録情報 | ![]() | |||||||||
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| タイトル | Cryo-EM structure of GPCR16-Gi complex | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | GPCR / Complex / SIGNALING PROTEIN | |||||||||
| 機能・相同性 | 機能・相同性情報bitter taste receptor activity / detection of chemical stimulus involved in sensory perception of bitter taste / ganglioside catabolic process / Class C/3 (Metabotropic glutamate/pheromone receptors) / oligosaccharide catabolic process / exo-alpha-sialidase / exo-alpha-sialidase activity / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / T cell migration ...bitter taste receptor activity / detection of chemical stimulus involved in sensory perception of bitter taste / ganglioside catabolic process / Class C/3 (Metabotropic glutamate/pheromone receptors) / oligosaccharide catabolic process / exo-alpha-sialidase / exo-alpha-sialidase activity / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / T cell migration / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / response to prostaglandin E / adenylate cyclase regulator activity / G protein-coupled serotonin receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / cellular response to forskolin / regulation of mitotic spindle organization / Regulation of insulin secretion / trans-Golgi network / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / G protein-coupled receptor activity / response to peptide hormone / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / centriolar satellite / 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 / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / 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 / photoreceptor disc membrane / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / GDP binding / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / 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 / 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 / G protein activity / GTPase binding / Ca2+ pathway / fibroblast proliferation / midbody / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / cell cortex / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) 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 / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / ciliary basal body / G protein-coupled receptor signaling pathway / lysosomal membrane / external side of plasma membrane / cell division / intracellular membrane-bounded organelle / GTPase activity / synapse / centrosome / GTP binding / protein-containing complex binding / nucleolus / magnesium ion binding / endoplasmic reticulum / Golgi apparatus / signal transduction 類似検索 - 分子機能 | |||||||||
| 生物種 | Homo sapiens (ヒト) | |||||||||
| 手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.15 Å | |||||||||
データ登録者 | Wang X / Wu LJ / Hua T / Liu ZJ | |||||||||
| 資金援助 | 中国, 1件
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引用 | ジャーナル: Cell Rep / 年: 2025タイトル: Structural basis of β-glucopyranoside salicin recognition by a human bitter taste GPCR. 著者: Xin Wang / Cui Zhou / Weizhen Ao / Lijie Wu / Yiran Wu / Weixiu Xu / Shenhui Liu / Qiwen Tan / Ling Wang / Fei Zhao / Junlin Liu / Yuan Pei / Suwen Zhao / Tian Hua / ![]() 要旨: The human perception of bitterness is mediated by type 2 taste receptors (TAS2Rs), which recognize a broad array of bitter substances with distinct chemical properties. TAS2R16 exhibits a pronounced ...The human perception of bitterness is mediated by type 2 taste receptors (TAS2Rs), which recognize a broad array of bitter substances with distinct chemical properties. TAS2R16 exhibits a pronounced selectivity for β-glucoside-moiety-containing compounds, such as salicin from willow bark. However, the molecular mechanism of moiety-specific recognition and receptor activation in TAS2R16 remains unclear. Here, we present cryoelectron microscopy structures of the salicin-activated human TAS2R16 complexed with gustducin and G and G proteins. The binding mode of salicin with TAS2R16 and the specific interactions of the β-D-glucopyranoside moiety are detailed. Together with molecular docking and mutagenesis data, this study uncovers the structural underpinnings of TAS2R16's group-specific recognition, receptor activation, and subsequent gustducin and G protein coupling. These findings advance our understanding of human bitter taste receptors and provide a foundation for structural modifications of bitter glycosides, opening potential therapeutic applications. | |||||||||
| 履歴 |
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構造の表示
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_62486.map.gz | 56.6 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-62486-v30.xml emd-62486.xml | 25.6 KB 25.6 KB | 表示 表示 | EMDBヘッダ |
| 画像 | emd_62486.png | 61.5 KB | ||
| Filedesc metadata | emd-62486.cif.gz | 7.7 KB | ||
| その他 | emd_62486_additional_1.map.gz emd_62486_half_map_1.map.gz emd_62486_half_map_2.map.gz | 57 MB 59.3 MB 59.3 MB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-62486 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-62486 | HTTPS FTP |
-検証レポート
| 文書・要旨 | emd_62486_validation.pdf.gz | 969.2 KB | 表示 | EMDB検証レポート |
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| 文書・詳細版 | emd_62486_full_validation.pdf.gz | 968.7 KB | 表示 | |
| XML形式データ | emd_62486_validation.xml.gz | 12.3 KB | 表示 | |
| CIF形式データ | emd_62486_validation.cif.gz | 14.4 KB | 表示 | |
| アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-62486 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-62486 | HTTPS FTP |
-関連構造データ
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リンク
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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| 「今月の分子」の関連する項目 |
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マップ
| ファイル | ダウンロード / ファイル: emd_62486.map.gz / 形式: CCP4 / 大きさ: 64 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| 投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
| ボクセルのサイズ | X=Y=Z: 0.96 Å | ||||||||||||||||||||||||||||||||||||
| 密度 |
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| 対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
| 詳細 | EMDB XML:
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-添付データ
-追加マップ: #1
| ファイル | emd_62486_additional_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_62486_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: #2
| ファイル | emd_62486_half_map_2.map | ||||||||||||
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| 投影像・断面図 |
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| 密度ヒストグラム |
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試料の構成要素
-全体 : Complex of GPCR with Gi1.
| 全体 | 名称: Complex of GPCR with Gi1. |
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| 要素 |
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-超分子 #1: Complex of GPCR with Gi1.
| 超分子 | 名称: Complex of GPCR with Gi1. / 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: Homo sapiens (ヒト) |
-分子 #1: Guanine nucleotide-binding protein G(i) subunit alpha-1
| 分子 | 名称: Guanine nucleotide-binding protein G(i) subunit alpha-1 タイプ: protein_or_peptide / ID: 1 / 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: Homo sapiens (ヒト) |
| 分子量 | 理論値: 42.29393 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: DYKDDDDKEN LYFQSMGCTL SAEDKAAVER SKMIDRNLRE DGEKAAREVK LLLLGAGESG KSTIVKQMKI IHEAGYSEEE CKQYKAVVY SNTIQSIIAI IRAMGRLKID FGDSARADDA RQLFVLAGAA EEGFMTAELA GVIKRLWKDS GVQACFNRSR E YQLNDSAA ...文字列: DYKDDDDKEN LYFQSMGCTL SAEDKAAVER SKMIDRNLRE DGEKAAREVK LLLLGAGESG KSTIVKQMKI IHEAGYSEEE CKQYKAVVY SNTIQSIIAI IRAMGRLKID FGDSARADDA RQLFVLAGAA EEGFMTAELA GVIKRLWKDS GVQACFNRSR E YQLNDSAA YYLNDLDRIA QPNYIPTQQD VLRTRVKTTG IVETHFTFKD LHFKMFDVGG QRSERKKWIH CFEGVTAIIF CV ALSDYDL VLAEDEEMNR MHESMKLFDS ICNNKWFTDT SIILFLNKKD LFEEKIKKSP LTICYPEYAG SNTYEEAAAY IQC QFEDLN KRKDTKEIYT HFTCATDTKN VQFVFDAVTD VIIKNNLKDC GLF UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1 |
-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: Homo sapiens (ヒト) |
| 分子量 | 理論値: 39.728426 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL ...文字列: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD INAICFFPNG NA FATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAGHDNRVSC LGV TDDGMA VATGSWDSFL KIWNGSSGGG GSGGGGSSGV SGWRLFKKIS 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: Homo sapiens (ヒト) |
| 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: Fusion protein 1,exo-alpha-sialidase,Taste receptor type 2 member...
| 分子 | 名称: Fusion protein 1,exo-alpha-sialidase,Taste receptor type 2 member 16,Fusion protein 2 タイプ: protein_or_peptide / ID: 4 / コピー数: 1 / 光学異性体: LEVO / EC番号: exo-alpha-sialidase |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 113.855758 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: MKTIIALSYI FCLVFADYKD DDDAHHHHHH HHHHENLYFQ SAHHHHHHSS GLEVLFQGPP EGAALTEKTD IFESGRNGNP NKDGIKSYR IPALLKTDKG TLIAGADERR LHSSDWGDIG MVIRRSEDNG KTWGDRVTIT NLRDNPKASD PSIGSPVNID M VLVQDPET ...文字列: MKTIIALSYI FCLVFADYKD DDDAHHHHHH HHHHENLYFQ SAHHHHHHSS GLEVLFQGPP EGAALTEKTD IFESGRNGNP NKDGIKSYR IPALLKTDKG TLIAGADERR LHSSDWGDIG MVIRRSEDNG KTWGDRVTIT NLRDNPKASD PSIGSPVNID M VLVQDPET KRIFSIYDMF PEGKGIFGMS SQKEEAYKKI DGKTYQILYR EGEKGAYTIR ENGTVYTPDG KATDYRVVVD PV KPAYSDK GDLYKGDQLL GNIYFTTNKT SPFRIAKDSY LWMSYSDDDG KTWSAPQDIT PMVKADWMKF LGVGPGTGIV LRN GPHKGR ILIPVYTTNN VSHLDGSQSS RVIYSDDHGK TWHAGEAVND NRQVDGQKIH SSTMNNRRAQ NTESTVVQLN NGDV KLFMR GLTGDLQVAT SKDGGVTWEK DIKRYPQVKD VYVQMSAIHT MHEGKEYIIL SNAGGPKREN GMVHLARVEE NGELT WLKH NPIQKGEFAY NSLQELGNGE YGILYEHTEK GQNAYTLSFR KFNWEFLSKN GSGSGIPIQL TVFFMIIYVL ESLTII VQS SLIVAVLGRE WLQVRRLMPV DMILISLGIS RFCLQWASML NNFCSYFNLN YVLCNLTITW EFFNILTFWL NSLLTVF YC IKVSSFTHHI FLWLRWRILR LFPWILLGCL MITCVTIIPS AIGNYIQIQL LTMEHLPRNS TVTDKLENFH QYQFQAHT V ALVIPFILFL ASTIFLMASL TKQIQHHSTG HCNPSMKARF TALRSLAVLF IVFTSYFLTI LITIIGTLFD KRCWLWVWE AFVYAFILMH STSLMLSSPT LKRILKGKCG SGSGGSGSGG SGSGGSGSGS SGGVFTLEDF VGDWEQTAAY NLDQVLEQGG VSSLLQNLA VSVTPIQRIV RSGENALKID IHVIIPYEGL SADQMAQIEE VFKVVYPVDD HHFKVILPYG TLVIDGVTPN M LNYFGRPY EGIAVFDGKK ITVTGTLWNG NKIIDERLIT PDGSMLFRVT INS UniProtKB: Sialidase A, Taste receptor type 2 member 16 |
-分子 #5: scFv16
| 分子 | 名称: scFv16 / 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: Homo sapiens (ヒト) |
| 分子量 | 理論値: 28.66682 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...文字列: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL KAAAENLYFQ SHHHHHHHH |
-分子 #6: 2-(hydroxymethyl)phenyl beta-D-glucopyranoside
| 分子 | 名称: 2-(hydroxymethyl)phenyl beta-D-glucopyranoside / タイプ: ligand / ID: 6 / コピー数: 1 / 式: SA0 |
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| 分子量 | 理論値: 286.278 Da |
| Chemical component information | ![]() ChemComp-SA0: |
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
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解析 | 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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| グリッド | 材質: GOLD |
| 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: FEI FALCON IV (4k x 4k) 平均電子線量: 60.0 e/Å2 |
| 電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
| 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): 2.0 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 |
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画像解析
-原子モデル構築 1
| 初期モデル | Chain - Source name: AlphaFold / Chain - Initial model type: in silico model |
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| 精密化 | 空間: REAL / プロトコル: RIGID BODY FIT |
| 得られたモデル | ![]() PDB-9kpf: |
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コントローラー
万見について




キーワード
Homo sapiens (ヒト)
データ登録者
中国, 1件
引用



































Z (Sec.)
Y (Row.)
X (Col.)














































FIELD EMISSION GUN
