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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: 6ot0 | ||||||
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| タイトル | Structure of human Smoothened-Gi complex | ||||||
要素 |
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キーワード | SIGNALING PROTEIN / GPCR / Complex / Hedgehog signaling | ||||||
| 機能・相同性 | 機能・相同性情報ventral midline determination / regulation of cerebellar granule cell precursor proliferation / mesenchymal to epithelial transition involved in metanephric renal vesicle formation / response to inositol / regulation of heart morphogenesis / contact inhibition / negative regulation of hair follicle development / 9+0 non-motile cilium / regulation of somatic stem cell population maintenance / pancreas morphogenesis ...ventral midline determination / regulation of cerebellar granule cell precursor proliferation / mesenchymal to epithelial transition involved in metanephric renal vesicle formation / response to inositol / regulation of heart morphogenesis / contact inhibition / negative regulation of hair follicle development / 9+0 non-motile cilium / regulation of somatic stem cell population maintenance / pancreas morphogenesis / negative regulation of DNA binding / epithelial-mesenchymal cell signaling / myoblast migration / atrial septum morphogenesis / spinal cord dorsal/ventral patterning / determination of left/right asymmetry in lateral mesoderm / midgut development / left/right axis specification / patched binding / somite development / type B pancreatic cell development / forebrain morphogenesis / Activation of SMO / positive regulation of organ growth / smooth muscle tissue development / cellular response to cholesterol / BBSome-mediated cargo-targeting to cilium / mammary gland epithelial cell differentiation / positive regulation of branching involved in ureteric bud morphogenesis / cerebellar cortex morphogenesis / pattern specification process / dentate gyrus development / oxysterol binding / dopaminergic neuron differentiation / thalamus development / commissural neuron axon guidance / positive regulation of multicellular organism growth / positive regulation of smoothened signaling pathway / Class B/2 (Secretin family receptors) / central nervous system neuron differentiation / cAMP-dependent protein kinase inhibitor activity / cell fate specification / anterior/posterior pattern specification / positive regulation of mesenchymal cell proliferation / hair follicle morphogenesis / neural crest cell migration / ciliary membrane / dorsal/ventral neural tube patterning / smoothened signaling pathway / positive regulation of neuroblast proliferation / negative regulation of epithelial cell differentiation / heart looping / protein kinase A catalytic subunit binding / odontogenesis of dentin-containing tooth / endoplasmic reticulum-Golgi intermediate compartment / negative regulation of protein phosphorylation / neuroblast proliferation / vasculogenesis / Hedgehog 'off' state / skeletal muscle fiber development / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / T cell migration / positive regulation of relaxation of smooth muscle / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / astrocyte activation / adenylate cyclase-inhibiting serotonin receptor signaling pathway / G protein-coupled serotonin receptor binding / homeostasis of number of cells within a tissue / ciliary tip / epithelial cell proliferation / cellular response to forskolin / positive regulation of epithelial cell proliferation / regulation of mitotic spindle organization / chemokine-mediated signaling pathway / central nervous system development / centriole / Regulation of insulin secretion / neuropeptide signaling pathway / protein sequestering activity / response to prostaglandin E / positive regulation of cholesterol biosynthetic process / Hedgehog 'on' state / cerebral cortex development / negative regulation of insulin secretion / positive regulation of protein import into nucleus / G protein-coupled receptor binding / response to peptide hormone / G protein-coupled receptor activity / multicellular organism growth / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / centriolar satellite / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / Activation of the phototransduction cascade / protein import into nucleus / G protein-coupled acetylcholine receptor signaling pathway / G beta:gamma signalling through PLC beta 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト)![]() | ||||||
| 手法 | 電子顕微鏡法 / 単粒子再構成法 / 解像度: 3.84 Å | ||||||
データ登録者 | Qi, X. / Li, X. | ||||||
引用 | ジャーナル: Nature / 年: 2019タイトル: Cryo-EM structure of oxysterol-bound human Smoothened coupled to a heterotrimeric G. 著者: Xiaofeng Qi / Heng Liu / Bonne Thompson / Jeffrey McDonald / Cheng Zhang / Xiaochun Li / ![]() 要旨: The oncoprotein Smoothened (SMO), a G-protein-coupled receptor (GPCR) of the Frizzled-class (class-F), transduces the Hedgehog signal from the tumour suppressor Patched-1 (PTCH1) to the glioma- ...The oncoprotein Smoothened (SMO), a G-protein-coupled receptor (GPCR) of the Frizzled-class (class-F), transduces the Hedgehog signal from the tumour suppressor Patched-1 (PTCH1) to the glioma-associated-oncogene (GLI) transcription factors, which activates the Hedgehog signalling pathway. It has remained unknown how PTCH1 modulates SMO, how SMO is stimulated to form a complex with heterotrimeric G proteins and whether G-protein coupling contributes to the activation of GLI proteins. Here we show that 24,25-epoxycholesterol, which we identify as an endogenous ligand of PTCH1, can stimulate Hedgehog signalling in cells and can trigger G-protein signalling via human SMO in vitro. We present a cryo-electron microscopy structure of human SMO bound to 24(S),25-epoxycholesterol and coupled to a heterotrimeric G protein. The structure reveals a ligand-binding site for 24(S),25-epoxycholesterol in the 7-transmembrane region, as well as a G-coupled activation mechanism of human SMO. Notably, the G protein presents a different arrangement from that of class-A GPCR-G complexes. Our work provides molecular insights into Hedgehog signal transduction and the activation of a class-F GPCR. | ||||||
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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: 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 | 6ot0.cif.gz | 286 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb6ot0.ent.gz | 220.7 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 6ot0.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
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ot/6ot0 ftp://data.pdbj.org/pub/pdb/validation_reports/ot/6ot0 | 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
-Guanine nucleotide-binding protein ... , 3種, 3分子 ABG
| #2: タンパク質 | 分子量: 40414.047 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: GNAI1発現宿主: ![]() 参照: UniProt: P63096 |
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| #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) Homo sapiens (ヒト) / 遺伝子: GNB1発現宿主: ![]() 参照: UniProt: P62873 |
| #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) Homo sapiens (ヒト) / 遺伝子: GNG2発現宿主: ![]() 参照: UniProt: P59768 |
-抗体 , 2種, 2分子 LH
| #5: 抗体 | 分子量: 23258.783 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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| #6: 抗体 | 分子量: 25788.822 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
-タンパク質 / 非ポリマー , 2種, 2分子 R

| #1: タンパク質 | 分子量: 62109.387 Da / 分子数: 1 / 断片: residues 1-555 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: SMO, SMOH / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q99835 |
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| #7: 化合物 | ChemComp-CO1 / |
-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 |
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| 分子量 | 値: 0.250 MDa / 実験値: YES | ||||||||||||||||||||||||||||||
| 由来(天然) |
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| 由来(組換発現) |
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| 緩衝液 | pH: 7.5 | ||||||||||||||||||||||||||||||
| 試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: NO |
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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: FLOOD BEAM |
| 電子レンズ | モード: DARK FIELD |
| 撮影 | 電子線照射量: 1.4 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
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解析
| ソフトウェア | 名称: REFMAC / バージョン: 5.8.0158 / 分類: 精密化 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| CTF補正 | タイプ: NONE | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3次元再構成 | 解像度: 3.84 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 141100 / 対称性のタイプ: POINT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 精密化 | 解像度: 3.84→3.84 Å / Cor.coef. Fo:Fc: 0.876 / SU B: 148.702 / SU ML: 1.573 / ESU R: 0.975 立体化学のターゲット値: MAXIMUM LIKELIHOOD WITH PHASES 詳細: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
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| 溶媒の処理 | イオンプローブ半径: 0.8 Å / 減衰半径: 0.8 Å / VDWプローブ半径: 1.2 Å / 溶媒モデル: MASK | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 原子変位パラメータ | Biso mean: 200.285 Å2
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| 精密化ステップ | サイクル: 1 / 合計: 10572 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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コントローラー
万見について




Homo sapiens (ヒト)

引用
UCSF Chimera








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