+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 6oy9 | |||||||||
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タイトル | Structure of the Rhodopsin-Transducin Complex | |||||||||
要素 |
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キーワード | SIGNALING PROTEIN / GPCR / G protein / Complex | |||||||||
機能・相同性 | 機能・相同性情報 detection of light stimulus involved in visual perception / negative regulation of cyclic-nucleotide phosphodiesterase activity / Opsins / VxPx cargo-targeting to cilium / opsin binding / rod bipolar cell differentiation / sperm head plasma membrane / absorption of visible light / Olfactory Signaling Pathway / The canonical retinoid cycle in rods (twilight vision) ...detection of light stimulus involved in visual perception / negative regulation of cyclic-nucleotide phosphodiesterase activity / Opsins / VxPx cargo-targeting to cilium / opsin binding / rod bipolar cell differentiation / sperm head plasma membrane / absorption of visible light / Olfactory Signaling Pathway / The canonical retinoid cycle in rods (twilight vision) / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / G protein-coupled opsin signaling pathway / photoreceptor inner segment membrane / podosome assembly / 11-cis retinal binding / G protein-coupled photoreceptor activity / rod photoreceptor outer segment / cellular response to light stimulus / G protein-coupled receptor complex / Inactivation, recovery and regulation of the phototransduction cascade / thermotaxis / Activation of the phototransduction cascade / phototransduction, visible light / outer membrane / detection of temperature stimulus involved in thermoception / response to light intensity / photoreceptor cell maintenance / arrestin family protein binding / 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 / Glucagon-type ligand receptors / G alpha (12/13) signalling events / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Thrombin signalling through proteinase activated receptors (PARs) / Ca2+ pathway / Extra-nuclear estrogen signaling / G alpha (z) signalling events / G alpha (s) signalling events / G alpha (q) signalling events / photoreceptor outer segment membrane / G alpha (i) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / phototransduction / response to light stimulus / photoreceptor outer segment / G-protein alpha-subunit binding / acyl binding / sperm midpiece / photoreceptor inner segment / visual perception / guanyl-nucleotide exchange factor activity / G protein-coupled receptor binding / G-protein beta/gamma-subunit complex binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / microtubule cytoskeleton organization / photoreceptor disc membrane / cellular response to catecholamine stimulus / adenylate cyclase-activating dopamine receptor signaling pathway / GDP binding / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / cell-cell junction / signaling receptor complex adaptor activity / gene expression / G protein-coupled receptor signaling pathway / Golgi membrane / GTPase activity / GTP binding / protein kinase binding / zinc ion binding / identical protein binding / membrane / metal ion binding / plasma membrane / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Bos taurus (ウシ) | |||||||||
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 | Gao, Y. / Hu, H. / Ramachandran, S. / Erickson, J.W. / Cerione, R.A. / Skiniotis, G. | |||||||||
資金援助 | 米国, 2件
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引用 | ジャーナル: Mol Cell / 年: 2019 タイトル: Structures of the Rhodopsin-Transducin Complex: Insights into G-Protein Activation. 著者: Yang Gao / Hongli Hu / Sekar Ramachandran / Jon W Erickson / Richard A Cerione / Georgios Skiniotis / 要旨: Rhodopsin (Rho), a prototypical G-protein-coupled receptor (GPCR) in vertebrate vision, activates the G-protein transducin (G) by catalyzing GDP-GTP exchange on its α subunit (Gα). To elucidate the ...Rhodopsin (Rho), a prototypical G-protein-coupled receptor (GPCR) in vertebrate vision, activates the G-protein transducin (G) by catalyzing GDP-GTP exchange on its α subunit (Gα). To elucidate the determinants of G coupling and activation, we obtained cryo-EM structures of a fully functional, light-activated Rho-G complex in the presence and absence of a G-protein-stabilizing nanobody. The structures illustrate how G overcomes its low basal activity by engaging activated Rho in a conformation distinct from other GPCR-G-protein complexes. Moreover, the nanobody-free structures reveal native conformations of G-protein components and capture three distinct conformers showing the Gα helical domain (αHD) contacting the Gβγ subunits. These findings uncover the molecular underpinnings of G-protein activation by visual rhodopsin and shed new light on the role played by Gβγ during receptor-catalyzed nucleotide exchange. | |||||||||
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 | 6oy9.cif.gz | 177.5 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb6oy9.ent.gz | 142.6 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 6oy9.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 | 6oy9_validation.pdf.gz | 918.1 KB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 6oy9_full_validation.pdf.gz | 926.1 KB | 表示 | |
XML形式データ | 6oy9_validation.xml.gz | 32.1 KB | 表示 | |
CIF形式データ | 6oy9_validation.cif.gz | 47.8 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/oy/6oy9 ftp://data.pdbj.org/pub/pdb/validation_reports/oy/6oy9 | 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
#1: タンパク質 | 分子量: 41188.895 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Bos taurus (ウシ) / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: P04695 |
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#2: タンパク質 | 分子量: 37430.957 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Bos taurus (ウシ) / 参照: UniProt: P62871 |
#3: タンパク質 | 分子量: 9337.784 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Bos taurus (ウシ) / 参照: UniProt: P02698 |
#4: タンパク質 | 分子量: 39031.457 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) Bos taurus (ウシ) / 参照: UniProt: P02699 |
#5: 化合物 | ChemComp-RET / |
-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 |
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分子量 | 値: 0.1418 MDa / 実験値: NO | ||||||||||||||||||||||||
由来(天然) |
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由来(組換発現) | 生物種: Escherichia coli (大腸菌) | ||||||||||||||||||||||||
緩衝液 | pH: 7.5 | ||||||||||||||||||||||||
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: GOLD / グリッドのサイズ: 200 divisions/in. / グリッドのタイプ: Quantifoil R1.2/1.3 | ||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK III / 凍結剤: ETHANE / 湿度: 100 % |
-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 / Cs: 2.7 mm / C2レンズ絞り径: 50 µm |
撮影 | 平均露光時間: 8 sec. / 電子線照射量: 50 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 実像数: 12616 |
画像スキャン | 動画フレーム数/画像: 40 |
-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: 5872324 | ||||||||||||||||||||||||
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: 250451 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
原子モデル構築 | プロトコル: BACKBONE TRACE |