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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 6lpb | ||||||
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| タイトル | Cryo-EM structure of the human PAC1 receptor coupled to an engineered heterotrimeric G protein | ||||||
要素 |
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キーワード | SIGNALING PROTEIN/HORMONE / CLASS B GPCR / PACAP / PAC1R / SIGNALING PROTEIN-HORMONE COMPLEX | ||||||
| 機能・相同性 | 機能・相同性情報negative regulation of response to reactive oxygen species / pituitary adenylate cyclase activating polypeptide activity / development of primary female sexual characteristics / type 1 vasoactive intestinal polypeptide receptor binding / type 2 vasoactive intestinal polypeptide receptor binding / pituitary adenylate cyclase-activating polypeptide receptor activity / vasoactive intestinal polypeptide receptor activity / positive regulation of growth hormone secretion / positive regulation of chemokine (C-C motif) ligand 5 production / NGF-independant TRKA activation ...negative regulation of response to reactive oxygen species / pituitary adenylate cyclase activating polypeptide activity / development of primary female sexual characteristics / type 1 vasoactive intestinal polypeptide receptor binding / type 2 vasoactive intestinal polypeptide receptor binding / pituitary adenylate cyclase-activating polypeptide receptor activity / vasoactive intestinal polypeptide receptor activity / positive regulation of growth hormone secretion / positive regulation of chemokine (C-C motif) ligand 5 production / NGF-independant TRKA activation / neuropeptide hormone activity / regulation of G protein-coupled receptor signaling pathway / G-protein activation / Activation of the phototransduction cascade / Glucagon-type ligand receptors / Thromboxane signalling through TP receptor / Sensory perception of sweet, bitter, and umami (glutamate) taste / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Ca2+ pathway / G alpha (z) signalling events / positive regulation of small GTPase mediated signal transduction / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / neuropeptide binding / G protein-coupled peptide receptor activity / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / G alpha (q) signalling events / G alpha (i) signalling events / Thrombin signalling through proteinase activated receptors (PARs) / Activation of G protein gated Potassium channels / G-protein activation / G beta:gamma signalling through PI3Kgamma / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through PLC beta / ADP signalling through P2Y purinoceptor 1 / Thromboxane signalling through TP receptor / Presynaptic function of Kainate receptors / G beta:gamma signalling through CDC42 / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G alpha (12/13) signalling events / Glucagon-type ligand receptors / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / insulin secretion / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Ca2+ pathway / Thrombin signalling through proteinase activated receptors (PARs) / G alpha (z) signalling events / Extra-nuclear estrogen signaling / photoreceptor outer segment membrane / G alpha (s) signalling events / G alpha (q) signalling events / spectrin binding / G alpha (i) signalling events / peptide hormone receptor binding / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / positive regulation of inositol phosphate biosynthetic process / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Vasopressin regulates renal water homeostasis via Aquaporins / alkylglycerophosphoethanolamine phosphodiesterase activity / negative regulation of cell cycle / positive regulation of cAMP/PKA signal transduction / positive regulation of protein kinase activity / peptide hormone binding / positive regulation of calcium ion transport into cytosol / adenylate cyclase binding / cAMP/PKA signal transduction / PKA activation in glucagon signalling / positive regulation of GTPase activity / developmental growth / hair follicle placode formation / photoreceptor outer segment / bicellular tight junction / D1 dopamine receptor binding / neuropeptide signaling pathway / intracellular transport / multicellular organismal response to stress / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / activation of adenylate cyclase activity / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway / cardiac muscle cell apoptotic process / photoreceptor inner segment / cellular response to glucagon stimulus / regulation of insulin secretion / adenylate cyclase activator activity / trans-Golgi network membrane / negative regulation of inflammatory response to antigenic stimulus / female pregnancy / bone development / caveola / small GTPase binding 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト)![]() unidentified (未定義) ![]() | ||||||
| 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: 3.9 Å | ||||||
データ登録者 | Kobayashi, K. / Shihoya, W. / Nishizawa, T. / Nureki, O. | ||||||
引用 | ジャーナル: Nat Struct Mol Biol / 年: 2020タイトル: Cryo-EM structure of the human PAC1 receptor coupled to an engineered heterotrimeric G protein. 著者: Kazuhiro Kobayashi / Wataru Shihoya / Tomohiro Nishizawa / Francois Marie Ngako Kadji / Junken Aoki / Asuka Inoue / Osamu Nureki / ![]() 要旨: Pituitary adenylate cyclase-activating polypeptide (PACAP) is a pleiotropic neuropeptide hormone. The PACAP receptor PAC1R, which belongs to the class B G-protein-coupled receptors (GPCRs), is a drug ...Pituitary adenylate cyclase-activating polypeptide (PACAP) is a pleiotropic neuropeptide hormone. The PACAP receptor PAC1R, which belongs to the class B G-protein-coupled receptors (GPCRs), is a drug target for mental disorders and dry eye syndrome. Here, we present a cryo-EM structure of human PAC1R bound to PACAP and an engineered G heterotrimer. The structure revealed that transmembrane helix TM1 plays an essential role in PACAP recognition. The extracellular domain (ECD) of PAC1R tilts by ~40° compared with that of the glucagon-like peptide-1 receptor (GLP-1R) and thus does not cover the peptide ligand. A functional analysis demonstrated that the PAC1R ECD functions as an affinity trap and is not required for receptor activation, whereas the GLP-1R ECD plays an indispensable role in receptor activation, illuminating the functional diversity of the ECDs in class B GPCRs. Our structural information will facilitate the design and improvement of better PAC1R agonists for clinical applications. | ||||||
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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: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 6lpb.cif.gz | 210.7 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb6lpb.ent.gz | 163.3 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 6lpb.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 | 6lpb_validation.pdf.gz | 1.1 MB | 表示 | wwPDB検証レポート |
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| 文書・詳細版 | 6lpb_full_validation.pdf.gz | 1.1 MB | 表示 | |
| XML形式データ | 6lpb_validation.xml.gz | 40.2 KB | 表示 | |
| CIF形式データ | 6lpb_validation.cif.gz | 62 KB | 表示 | |
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/lp/6lpb ftp://data.pdbj.org/pub/pdb/validation_reports/lp/6lpb | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 0940MC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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| 類似構造データ | |
| 電子顕微鏡画像生データ | EMPIAR-10351 (タイトル: Cryo-EM structure of the human PAC1 receptor coupled to an engineered heterotrimeric G proteinData size: 3.5 TB Data #1: Unaligned movies for the human PAC1 receptor coupled to Gs (dimer) [micrographs - multiframe]) |
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リンク
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集合体
| 登録構造単位 | ![]()
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| 対称性 | 点対称性: (シェーンフリース記号: C2 (2回回転対称)) | ||||||||||||
| 非結晶学的対称性 (NCS) | NCS oper:
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要素
-Pituitary adenylate cyclase-activating ... , 2種, 2分子 PR
| #1: タンパク質・ペプチド | 分子量: 4547.336 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) Homo sapiens (ヒト) / 参照: UniProt: P18509 |
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| #2: タンパク質 | 分子量: 46675.520 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: ADCYAP1R1 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: P41586 |
-Guanine nucleotide-binding protein ... , 3種, 3分子 BAG
| #3: タンパク質 | 分子量: 38744.371 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: P54311 |
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| #4: タンパク質 | 分子量: 28964.734 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: ![]() |
| #6: タンパク質 | 分子量: 7547.685 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: P63212 |
-抗体 , 1種, 1分子 N
| #5: 抗体 | 分子量: 15015.728 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) unidentified (未定義) / 発現宿主: ![]() |
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-詳細
| Has protein modification | Y |
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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 |
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試料調製
| 構成要素 | 名称: PAC1R-Gs trimer / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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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) | 生物種: Homo sapiens (ヒト) |
| 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 |
| 試料支持 | グリッドの材料: COPPER/RHODIUM / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 |
| 急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 277 K |
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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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: OTHER |
| 電子レンズ | モード: BRIGHT FIELD |
| 撮影 | 電子線照射量: 64 e/Å2 フィルム・検出器のモデル: FEI FALCON III (4k x 4k) |
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解析
| ソフトウェア | 名称: PHENIX / バージョン: 1.14_3260: / 分類: 精密化 |
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| EMソフトウェア | 名称: PHENIX / バージョン: 1.14 / カテゴリ: モデル精密化 / 詳細: phenix.real_space_refine |
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
| 対称性 | 点対称性: C2 (2回回転対称) |
| 3次元再構成 | 解像度: 3.9 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 132808 / 対称性のタイプ: POINT |
| 原子モデル構築 | プロトコル: OTHER |
| 原子モデル構築 | PDB-ID: 5VAI Accession code: 5VAI / Source name: PDB / タイプ: experimental model |
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万見について




Homo sapiens (ヒト)

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