+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-44643 | |||||||||||||||
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タイトル | Cholecystokinin 1 receptor (CCK1R) sterol 7M mutant, Gq chimera (mGsqi) complex | |||||||||||||||
マップデータ | Main map (best class, refinement with micelle and ScFv16 masked out), unsharpened | |||||||||||||||
試料 |
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キーワード | cholecystokinin / GPCR / cholesterol / mutant / MEMBRANE PROTEIN | |||||||||||||||
機能・相同性 | 機能・相同性情報 cholecystokinin receptor activity / cholecystokinin signaling pathway / regulation of hormone secretion / sensory perception of chemical stimulus / mu-type opioid receptor binding / corticotropin-releasing hormone receptor 1 binding / neuropeptide hormone activity / beta-2 adrenergic receptor binding / eating behavior / peptide hormone receptor binding ...cholecystokinin receptor activity / cholecystokinin signaling pathway / regulation of hormone secretion / sensory perception of chemical stimulus / mu-type opioid receptor binding / corticotropin-releasing hormone receptor 1 binding / neuropeptide hormone activity / beta-2 adrenergic receptor binding / eating behavior / peptide hormone receptor binding / PKA activation in glucagon signalling / peptide hormone binding / developmental growth / D1 dopamine receptor binding / Hedgehog 'off' state / cellular response to hormone stimulus / forebrain development / digestion / ionotropic glutamate receptor binding / insulin-like growth factor receptor binding / adenylate cyclase activator activity / axonogenesis / Peptide ligand-binding receptors / peptide binding / neuron migration / bone development / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / adenylate cyclase-activating G protein-coupled receptor signaling pathway / hormone activity / 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 / platelet aggregation / 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 / 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 / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) 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 (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / apical plasma membrane / lysosomal membrane / axon / GTPase activity / synapse / protein-containing complex binding / GTP binding / signal transduction / extracellular space / extracellular exosome / extracellular region / nucleoplasm / membrane / metal ion binding / plasma membrane / cytosol / cytoplasm 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: 2.51 Å | |||||||||||||||
データ登録者 | Harikumar KG / Zhao P / Cary BP / Xu X / Desai AJ / Mobbs JI / Toufaily C / Furness SGB / Christopoulos A / Belousoff MJ ...Harikumar KG / Zhao P / Cary BP / Xu X / Desai AJ / Mobbs JI / Toufaily C / Furness SGB / Christopoulos A / Belousoff MJ / Wootten D / Sexton PM / Miller LJ | |||||||||||||||
資金援助 | 米国, オーストラリア, 4件
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引用 | ジャーナル: PLoS Biol / 年: 2024 タイトル: Cholesterol-dependent dynamic changes in the conformation of the type 1 cholecystokinin receptor affect ligand binding and G protein coupling. 著者: Kaleeckal G Harikumar / Peishen Zhao / Brian P Cary / Xiaomeng Xu / Aditya J Desai / Maoqing Dong / Jesse I Mobbs / Chirine Toufaily / Sebastian G B Furness / Arthur Christopoulos / Matthew J ...著者: Kaleeckal G Harikumar / Peishen Zhao / Brian P Cary / Xiaomeng Xu / Aditya J Desai / Maoqing Dong / Jesse I Mobbs / Chirine Toufaily / Sebastian G B Furness / Arthur Christopoulos / Matthew J Belousoff / Denise Wootten / Patrick M Sexton / Laurence J Miller / 要旨: Development of optimal therapeutics for disease states that can be associated with increased membrane cholesterol requires better molecular understanding of lipid modulation of the drug target. Type ...Development of optimal therapeutics for disease states that can be associated with increased membrane cholesterol requires better molecular understanding of lipid modulation of the drug target. Type 1 cholecystokinin receptor (CCK1R) agonist actions are affected by increased membrane cholesterol, enhancing ligand binding and reducing calcium signaling, while agonist actions of the closely related CCK2R are not. In this work, we identified a set of chimeric human CCK1R/CCK2R mutations that exchange the cholesterol sensitivity of these 2 receptors, providing powerful tools when expressed in CHO and HEK-293 model cell lines to explore mechanisms. Static, low energy, high-resolution structures of the mutant CCK1R constructs, stabilized in complex with G protein, were not substantially different, suggesting that alterations to receptor dynamics were key to altered function. We reveal that cholesterol-dependent dynamic changes in the conformation of the helical bundle of CCK receptors affects both ligand binding at the extracellular surface and G protein coupling at the cytosolic surface, as well as their interrelationships involved in stimulus-response coupling. This provides an ideal setting for potential allosteric modulators to correct the negative impact of membrane cholesterol on CCK1R. | |||||||||||||||
履歴 |
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-構造の表示
添付画像 |
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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_44643.map.gz | 59.6 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-44643-v30.xml emd-44643.xml | 33.4 KB 33.4 KB | 表示 表示 | EMDBヘッダ |
FSC (解像度算出) | emd_44643_fsc.xml | 8.4 KB | 表示 | FSCデータファイル |
画像 | emd_44643.png | 73.1 KB | ||
マスクデータ | emd_44643_msk_1.map | 64 MB | マスクマップ | |
Filedesc metadata | emd-44643.cif.gz | 7.5 KB | ||
その他 | emd_44643_additional_1.map.gz emd_44643_additional_2.map.gz emd_44643_additional_3.map.gz emd_44643_additional_4.map.gz emd_44643_additional_5.map.gz emd_44643_half_map_1.map.gz emd_44643_half_map_2.map.gz | 32.2 MB 32.1 MB 59.5 MB 59.5 MB 31.9 MB 59.5 MB 59.5 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-44643 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-44643 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_44643_validation.pdf.gz | 1002.6 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_44643_full_validation.pdf.gz | 1002.1 KB | 表示 | |
XML形式データ | emd_44643_validation.xml.gz | 16.4 KB | 表示 | |
CIF形式データ | emd_44643_validation.cif.gz | 21.2 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-44643 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-44643 | HTTPS FTP |
-関連構造データ
関連構造データ | 9bkkMC 9bkjC M: このマップから作成された原子モデル C: 同じ文献を引用 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-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 |
-マップ
ファイル | ダウンロード / ファイル: emd_44643.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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注釈 | Main map (best class, refinement with micelle and ScFv16 masked out), unsharpened | ||||||||||||||||||||||||||||||||||||
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: 0.85 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
-マスク #1
ファイル | emd_44643_msk_1.map | ||||||||||||
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投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Main map (best class, refinement with micelle and...
ファイル | emd_44643_additional_1.map | ||||||||||||
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注釈 | Main map (best class, refinement with micelle and ScFv16 masked out), unsharpened | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Receptor local refinement (best class), unsharpened
ファイル | emd_44643_additional_2.map | ||||||||||||
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注釈 | Receptor local refinement (best class), unsharpened | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Consensus refinement half-map B
ファイル | emd_44643_additional_3.map | ||||||||||||
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注釈 | Consensus refinement half-map B | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Consensus refinement half-map A
ファイル | emd_44643_additional_4.map | ||||||||||||
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注釈 | Consensus refinement half-map A | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Consensus refinement map, unsharpened
ファイル | emd_44643_additional_5.map | ||||||||||||
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注釈 | Consensus refinement map, unsharpened | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: Main half map A (best class, refinement with...
ファイル | emd_44643_half_map_1.map | ||||||||||||
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注釈 | Main half map A (best class, refinement with micelle and ScFv16 masked out) | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: Main half map B (best class, refinement with...
ファイル | emd_44643_half_map_2.map | ||||||||||||
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注釈 | Main half map B (best class, refinement with micelle and ScFv16 masked out) | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
-全体 : Complex of CCK1R (sterol 7M mutant) bound to miniGs (Gq, Gi chime...
全体 | 名称: Complex of CCK1R (sterol 7M mutant) bound to miniGs (Gq, Gi chimera), G-beta1, G-gamma-2 and CCK8s. |
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要素 |
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-超分子 #1: Complex of CCK1R (sterol 7M mutant) bound to miniGs (Gq, Gi chime...
超分子 | 名称: Complex of CCK1R (sterol 7M mutant) bound to miniGs (Gq, Gi chimera), G-beta1, G-gamma-2 and CCK8s. タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all 詳細: Single-chain fragment variable 16 (ScFv16) was included in the complex but left unmodeled. |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 150 KDa |
-分子 #1: Guanine nucleotide-binding protein G(s) subunit alpha isoforms XLas
分子 | 名称: Guanine nucleotide-binding protein G(s) subunit alpha isoforms XLas タイプ: protein_or_peptide / ID: 1 詳細: Guanine nucleotide-binding protein G(i) subunit alpha-1,Guanine nucleotide-binding protein G(s) subunit alpha isoforms short,with certain residues mutated to match Guanine nucleotide-binding protein G(q) subunit 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: 29.144971 KDa |
組換発現 | 生物種: Trichoplusia ni (イラクサキンウワバ) |
配列 | 文字列: HHHHHHHHGC TLSAEDKAAV ERSKMIDRNL REDGEKARRT LRLLLLGADN SGKSTIVKQM RILHGGSGGS GGTSGIFETK FQVDKVNFH MFDVGGQRDE RRKWIQCFND VTAIIFVVDS SDYNRLQEAL NDFKSIWNNR WLRTISVILF LNKQDLLAEK V LAGKSKIE ...文字列: HHHHHHHHGC TLSAEDKAAV ERSKMIDRNL REDGEKARRT LRLLLLGADN SGKSTIVKQM RILHGGSGGS GGTSGIFETK FQVDKVNFH MFDVGGQRDE RRKWIQCFND VTAIIFVVDS SDYNRLQEAL NDFKSIWNNR WLRTISVILF LNKQDLLAEK V LAGKSKIE DYFPEFARYT TPEDATPEPG EDPRVTRAKY FIRKEFVDIS TASGDGRHIC YPHFTCAVDT ENARRIFNDC KD IILQMNL REYNLV UniProtKB: Guanine nucleotide-binding protein G(s) subunit alpha isoforms XLas |
-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: 37.413863 KDa |
組換発現 | 生物種: Trichoplusia ni (イラクサキンウワバ) |
配列 | 文字列: QSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL ...文字列: QSELDQLRQE 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 KIWN 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: Trichoplusia ni (イラクサキンウワバ) |
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: Cholecystokinin-8
分子 | 名称: Cholecystokinin-8 / 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: Homo sapiens (ヒト) |
分子量 | 理論値: 1.142262 KDa |
配列 | 文字列: D(TYS)MGWMDF(NH2) UniProtKB: Cholecystokinin |
-分子 #5: Cholecystokinin receptor type A
分子 | 名称: Cholecystokinin receptor type A / 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: 47.69475 KDa |
組換発現 | 生物種: Trichoplusia ni (イラクサキンウワバ) |
配列 | 文字列: DVVDSLLVNG SNITPPCELG LENETLFCLD QPRPSKEWQP AVQILLYSLI FLLSVLGNTL VITVLIRNKR MRTVTNIFLL SLAVSDLML CLFCMPFNLI PNLLKDFIFG SAVCKTTTYF MGTSVSVSTL NLVAIALERY SAICKPLQSR VWQTKSHALK V IAATWCLS ...文字列: DVVDSLLVNG SNITPPCELG LENETLFCLD QPRPSKEWQP AVQILLYSLI FLLSVLGNTL VITVLIRNKR MRTVTNIFLL SLAVSDLML CLFCMPFNLI PNLLKDFIFG SAVCKTTTYF MGTSVSVSTL NLVAIALERY SAICKPLQSR VWQTKSHALK V IAATWCLS FTIMTPYPIY SNLVPFTKNN NQTANMCRFL LPNDVMQQSW HTFLLLLLFF IPGVVMAVAY GLISLELYQG IK FEASQKK SAKERKPSTT SSGKYEDSDG CYLQKTRPPR KLELRQLSTG SSSRANRIRS NSSAANLMAK KRVIRMLIVI VVL FFLCWM PIFSANAWRA YDTASAERRL SGTPISFILL LSYTSSCVNP IIYCFMNKRF RLGFMATFPC CPNPGPPGAR GEVG EEEEG GTTGASLSRF SYSHMSASVP PQ UniProtKB: Cholecystokinin receptor type A |
-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 |
-試料調製
濃度 | 7.8 mg/mL |
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緩衝液 | pH: 7.4 |
グリッド | モデル: Quantifoil R1.2/1.3 / 材質: GOLD / 前処理 - タイプ: GLOW DISCHARGE / 前処理 - 時間: 150 sec. / 前処理 - 雰囲気: AIR / 詳細: Gold coated. Negative polarity glow discharge. |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 277 K |
-電子顕微鏡法
顕微鏡 | FEI TITAN |
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撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 撮影したグリッド数: 1 / 実像数: 6878 / 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): 1.2 µm / 最小 デフォーカス(公称値): 0.6 µm |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |