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基本情報

登録情報
データベース: PDB / ID: 8uny
タイトルCryoEM structure of beta-2-adrenergic receptor in complex with GTP-bound Gs heterotrimer (Class N)
要素
  • (Guanine nucleotide-binding protein ...) x 3
  • Beta-2 adrenergic receptor
キーワードSIGNALING PROTEIN / GPCR / Adrenergic / Receptor / G protein
機能・相同性
機能・相同性情報


: / beta2-adrenergic receptor activity / positive regulation of mini excitatory postsynaptic potential / positive regulation of cAMP-dependent protein kinase activity / norepinephrine binding / Adrenoceptors / heat generation / positive regulation of autophagosome maturation / positive regulation of AMPA receptor activity / norepinephrine-epinephrine-mediated vasodilation involved in regulation of systemic arterial blood pressure ...: / beta2-adrenergic receptor activity / positive regulation of mini excitatory postsynaptic potential / positive regulation of cAMP-dependent protein kinase activity / norepinephrine binding / Adrenoceptors / heat generation / positive regulation of autophagosome maturation / positive regulation of AMPA receptor activity / norepinephrine-epinephrine-mediated vasodilation involved in regulation of systemic arterial blood pressure / activation of transmembrane receptor protein tyrosine kinase activity / negative regulation of smooth muscle contraction / positive regulation of lipophagy / response to psychosocial stress / negative regulation of multicellular organism growth / adrenergic receptor signaling pathway / endosome to lysosome transport / diet induced thermogenesis / neuronal dense core vesicle / positive regulation of protein kinase A signaling / PKA activation in glucagon signalling / hair follicle placode formation / adenylate cyclase binding / smooth muscle contraction / mu-type opioid receptor binding / developmental growth / corticotropin-releasing hormone receptor 1 binding / intracellular transport / potassium channel regulator activity / D1 dopamine receptor binding / Hedgehog 'off' state / positive regulation of bone mineralization / brown fat cell differentiation / beta-2 adrenergic receptor binding / adenylate cyclase-activating adrenergic receptor signaling pathway / regulation of sodium ion transport / bone resorption / activation of adenylate cyclase activity / adenylate cyclase activator activity / response to cold / receptor-mediated endocytosis / trans-Golgi network membrane / ionotropic glutamate receptor binding / insulin-like growth factor receptor binding / clathrin-coated endocytic vesicle membrane / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / bone development / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / positive regulation of protein serine/threonine kinase activity / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G-protein activation / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / cognition / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / platelet aggregation / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to amyloid-beta / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / 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 / sensory perception of smell / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / Cargo recognition for clathrin-mediated endocytosis / GTPase binding / retina development in camera-type eye / Clathrin-mediated endocytosis / phospholipase C-activating G protein-coupled receptor signaling pathway / Ca2+ pathway / positive regulation of cold-induced thermogenesis / amyloid-beta binding
類似検索 - 分子機能
Beta 2 adrenoceptor / Adrenoceptor family / G-protein alpha subunit, group S / Serpentine type 7TM GPCR chemoreceptor Srsx / G-alpha domain profile. / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G protein alpha subunit / G-protein, gamma subunit ...Beta 2 adrenoceptor / Adrenoceptor family / G-protein alpha subunit, group S / Serpentine type 7TM GPCR chemoreceptor Srsx / G-alpha domain profile. / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase
類似検索 - ドメイン・相同性
Chem-G1I / GUANOSINE-5'-TRIPHOSPHATE / Beta-2 adrenergic receptor / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
類似検索 - 構成要素
生物種Homo sapiens (ヒト)
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: 3.6 Å
データ登録者Papasergi-Scott, M.M. / Skiniotis, G.
資金援助 米国, 2件
組織認可番号
Other government
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS) 米国
引用ジャーナル: Nature / : 2024
タイトル: Time-resolved cryo-EM of G-protein activation by a GPCR.
著者: Makaía M Papasergi-Scott / Guillermo Pérez-Hernández / Hossein Batebi / Yang Gao / Gözde Eskici / Alpay B Seven / Ouliana Panova / Daniel Hilger / Marina Casiraghi / Feng He / Luis Maul / ...著者: Makaía M Papasergi-Scott / Guillermo Pérez-Hernández / Hossein Batebi / Yang Gao / Gözde Eskici / Alpay B Seven / Ouliana Panova / Daniel Hilger / Marina Casiraghi / Feng He / Luis Maul / Peter Gmeiner / Brian K Kobilka / Peter W Hildebrand / Georgios Skiniotis /
要旨: G-protein-coupled receptors (GPCRs) activate heterotrimeric G proteins by stimulating guanine nucleotide exchange in the Gα subunit. To visualize this mechanism, we developed a time-resolved cryo-EM ...G-protein-coupled receptors (GPCRs) activate heterotrimeric G proteins by stimulating guanine nucleotide exchange in the Gα subunit. To visualize this mechanism, we developed a time-resolved cryo-EM approach that examines the progression of ensembles of pre-steady-state intermediates of a GPCR-G-protein complex. By monitoring the transitions of the stimulatory G protein in complex with the β-adrenergic receptor at short sequential time points after GTP addition, we identified the conformational trajectory underlying G-protein activation and functional dissociation from the receptor. Twenty structures generated from sequential overlapping particle subsets along this trajectory, compared to control structures, provide a high-resolution description of the order of main events driving G-protein activation in response to GTP binding. Structural changes propagate from the nucleotide-binding pocket and extend through the GTPase domain, enacting alterations to Gα switch regions and the α5 helix that weaken the G-protein-receptor interface. Molecular dynamics simulations with late structures in the cryo-EM trajectory support that enhanced ordering of GTP on closure of the α-helical domain against the nucleotide-bound Ras-homology domain correlates with α5 helix destabilization and eventual dissociation of the G protein from the GPCR. These findings also highlight the potential of time-resolved cryo-EM as a tool for mechanistic dissection of GPCR signalling events.
履歴
登録2023年10月19日登録サイト: RCSB / 処理サイト: RCSB
改定 1.02024年3月6日Provider: repository / タイプ: Initial release
改定 1.12024年3月13日Group: Database references / Experimental preparation / カテゴリ: citation_author / em_sample_support / Item: _em_sample_support.grid_material
改定 1.22024年3月27日Group: Database references / カテゴリ: citation / citation_author
Item: _citation.pdbx_database_id_PubMed / _citation.title / _citation_author.identifier_ORCID
改定 1.32024年6月5日Group: Database references / カテゴリ: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID

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構造の表示

構造ビューア分子:
MolmilJmol/JSmol

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集合体

登録構造単位
A: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
G: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
R: Beta-2 adrenergic receptor
ヘテロ分子


分子量 (理論値)分子数
合計 (水以外)142,2616
ポリマ-141,5294
非ポリマー7322
00
1


  • 登録構造と同一
  • 登録者が定義した集合体
  • 根拠: 電子顕微鏡法, not applicable
タイプ名称対称操作
identity operation1_5551

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要素

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Guanine nucleotide-binding protein ... , 3種, 3分子 ABG

#1: タンパク質 Guanine nucleotide-binding protein G(s) subunit alpha isoforms short / Adenylate cyclase-stimulating G alpha protein


分子量: 44326.160 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: GNAS, GNAS1, GSP / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P63092
#2: タンパク質 Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1


分子量: 37573.988 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: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P62873
#3: タンパク質 Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


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: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P59768

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タンパク質 , 1種, 1分子 R

#4: タンパク質 Beta-2 adrenergic receptor / Beta-2 adrenoreceptor / Beta-2 adrenoceptor


分子量: 51767.242 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: ADRB2, ADRB2R, B2AR
発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ)
参照: UniProt: P07550

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非ポリマー , 2種, 2分子

#5: 化合物 ChemComp-GTP / GUANOSINE-5'-TRIPHOSPHATE / GTP


分子量: 523.180 Da / 分子数: 1 / 由来タイプ: 合成 / : C10H16N5O14P3 / コメント: GTP, エネルギー貯蔵分子*YM
#6: 化合物 ChemComp-G1I / (5R,6R)-6-(methylamino)-5,6,7,8-tetrahydronaphthalene-1,2,5-triol


分子量: 209.242 Da / 分子数: 1 / 由来タイプ: 合成 / : C11H15NO3

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詳細

研究の焦点であるリガンドがあるかN

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実験情報

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実験

実験手法: 電子顕微鏡法
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: Complex of beta-2 adrenergic receptor and Gs heterotrimer with GTP
タイプ: COMPLEX
詳細: Combined datasets of complex plunge frozen at 5 sec, 10 sec, or 17 sec after GTP addition to the sample.
Entity ID: #1-#4 / 由来: RECOMBINANT
分子量実験値: NO
由来(天然)生物種: Homo sapiens (ヒト)
由来(組換発現)
IDEntity assembly-ID生物種Ncbi tax-ID
21Spodoptera frugiperda (ツマジロクサヨトウ)7108
31Trichoplusia ni (イラクサキンウワバ)7111
緩衝液pH: 7.5
詳細: GTP was added just prior to freezing at 5 sec, 10 sec, or 17 sec before plunging.
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
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: 277.15 K
詳細: GTP was added just prior to freezing at 5 sec, 10 sec, or 17 sec before plunging.

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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
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 / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 400 nm
試料ホルダ凍結剤: NITROGEN
試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER
撮影電子線照射量: 50 e/Å2 / 検出モード: COUNTING / フィルム・検出器のモデル: GATAN K3 (6k x 4k)
詳細: The cryoEM map is the result of combining multiple datasets: cryo-EM imaging of the beta-2AR-Gs + GTP (5 sec) complex was performed on a Titan Krios electron microscope equipped with a K3 ...詳細: The cryoEM map is the result of combining multiple datasets: cryo-EM imaging of the beta-2AR-Gs + GTP (5 sec) complex was performed on a Titan Krios electron microscope equipped with a K3 Summit direct electron detector (Gatan). The microscope was operated at 300 kV accelerating voltage, with a nominal magnification of 105,000x in counting mode resulting in a magnified pixel size of 0.8677 Angstrom. A total exposure of 60.48 electrons/ Angstrom^2 over 63 frames with defocus ranging from -1.0 - -2.0 micrometers was used. Cryo-EM imaging of beta-2AR-Gs + GTP (10 sec) complex was performed on four separate grids over three collection sessions. The microscope was operated at 300 kV accelerating voltage, with a magnification at the camera of 58,679x in counting mode resulting in a magnified pixel size of 0.8521 Angstrom. For the first and second grids, movies were obtained at an exposure rate of 21.13 electrons/Angstrum^2/sec with defocus ranging from -0.4 - -2.0 micrometers. The total exposure time was 2.717 sec over 77 frames per movie stack. For an additional collection of the first grid, movies were obtained at an exposure rate of 20.95 electrons/ Angstrum^2/sec with defocus ranging from -0.4 -2.0 micrometers. The total exposure time was 2.717 sec over 77 frames per movie stack. For the third and fourth grids, movies were obtained at an exposure rate of 30.71 electrons/ Angstrum^2/sec with defocus ranging from -0.5 - -1.6 micrometers. The total exposure time was 2.008 sec over 79 frames per movie stack. Cryo-EM imaging of beta-2AR-Gs + GTP (17 sec) was performed on a Titan Krios equipped with a post-column energy filter, with a magnification of 105,000x in counting mode resulting in a magnified pixel size of 0.8677 Angstrom. Movies were obtained at an exposure rate of 32.46 electrons/Angstrum^2/sec with defocus ranging from -0.4 - -0.9 micrometers. The total exposure time was 1.999 sec over 79 frames per movie stack.

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解析

EMソフトウェア
ID名称カテゴリ詳細
2SerialEM画像取得
9PHENIXモデル精密化
10Cootモデル精密化
12cryoSPARC最終オイラー角割当
13cryoSPARC分類
14cryoSPARC3次元再構成Local refinement masking out micelle
CTF補正タイプ: NONE
粒子像の選択選択した粒子像数: 19918625
3次元再構成解像度: 3.6 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 44836
詳細: Contribution of each dataset to this refined class: 27.50% 5 sec dataset; 44.00% 10 sec dataset; 28.50% 17 sec dataset
対称性のタイプ: POINT
拘束条件
Refine-IDタイプDev ideal
ELECTRON MICROSCOPYf_bond_d0.0026845
ELECTRON MICROSCOPYf_angle_d0.559344
ELECTRON MICROSCOPYf_dihedral_angle_d9.878972
ELECTRON MICROSCOPYf_chiral_restr0.041105
ELECTRON MICROSCOPYf_plane_restr0.0031167

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