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- EMDB-40122: CryoEM structure of beta-2-adrenergic receptor in complex with Gs... -

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Entry
Database: EMDB / ID: EMD-40122
TitleCryoEM structure of beta-2-adrenergic receptor in complex with Gs heterotrimer, 10 sec after GTP addition (#7 of 20)
Map data
Sample
  • Complex: Complex of beta-2 adrenergic receptor and Gs heterotrimer, 10 sec post GTP treatment
    • Protein or peptide: G protein alpha s (short)
    • Protein or peptide: G protein beta 1
    • Protein or peptide: G protein gamma 2
    • Protein or peptide: Beta-2 adrenergic receptor
KeywordsGPCR / Adrenergic / Receptor / G protein / SIGNALING PROTEIN
Function / homology
Function and homology information


beta2-adrenergic receptor activity / norepinephrine-epinephrine-mediated vasodilation involved in regulation of systemic arterial blood pressure / positive regulation of mini excitatory postsynaptic potential / positive regulation of cAMP-dependent protein kinase activity / positive regulation of AMPA receptor activity / norepinephrine binding / positive regulation of autophagosome maturation / heat generation / Adrenoceptors / activation of transmembrane receptor protein tyrosine kinase activity ...beta2-adrenergic receptor activity / norepinephrine-epinephrine-mediated vasodilation involved in regulation of systemic arterial blood pressure / positive regulation of mini excitatory postsynaptic potential / positive regulation of cAMP-dependent protein kinase activity / positive regulation of AMPA receptor activity / norepinephrine binding / positive regulation of autophagosome maturation / heat generation / Adrenoceptors / activation of transmembrane receptor protein tyrosine kinase activity / negative regulation of smooth muscle contraction / positive regulation of lipophagy / negative regulation of multicellular organism growth / negative regulation of G protein-coupled receptor signaling pathway / response to psychosocial stress / endosome to lysosome transport / adrenergic receptor signaling pathway / diet induced thermogenesis / positive regulation of protein kinase A signaling / neuronal dense core vesicle / adenylate cyclase binding / smooth muscle contraction / bone resorption / potassium channel regulator activity / positive regulation of bone mineralization / brown fat cell differentiation / adenylate cyclase-activating adrenergic receptor signaling pathway / regulation of sodium ion transport / response to cold / receptor-mediated endocytosis / clathrin-coated endocytic vesicle membrane / positive regulation of protein serine/threonine kinase activity / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / Activation of the phototransduction cascade / 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 / 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 / cellular response to amyloid-beta / 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 / Cargo recognition for clathrin-mediated endocytosis / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / positive regulation of cold-induced thermogenesis / Clathrin-mediated endocytosis / retina development in camera-type eye / Ca2+ pathway / amyloid-beta binding / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / G alpha (q) signalling events / Ras protein signal transduction / transcription by RNA polymerase II / cell population proliferation / positive regulation of MAPK cascade / Extra-nuclear estrogen signaling / lysosome / early endosome / receptor complex / cell surface receptor signaling pathway / endosome membrane / Ub-specific processing proteases / endosome / G protein-coupled receptor signaling pathway / apical plasma membrane / lysosomal membrane
Similarity search - Function
Beta 2 adrenoceptor / Adrenoceptor family / Serpentine type 7TM GPCR chemoreceptor Srsx / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain ...Beta 2 adrenoceptor / Adrenoceptor family / Serpentine type 7TM GPCR chemoreceptor Srsx / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / 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
Similarity search - Domain/homology
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 / Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.4 Å
AuthorsPapasergi-Scott MM / Skiniotis G
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS) United States
CitationJournal: Nature / Year: 2024
Title: Time-resolved cryo-EM of G-protein activation by a GPCR.
Authors: 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 ...Authors: 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 /
Abstract: 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.
History
DepositionMar 16, 2023-
Header (metadata) releaseMar 6, 2024-
Map releaseMar 6, 2024-
UpdateJun 12, 2024-
Current statusJun 12, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_40122.png

Downloads & links

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Map

FileDownload / File: emd_40122.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
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AxesZ (Sec.)Y (Row.)X (Col.)
0.85 Å/pix.
x 400 pix.
= 340.84 Å		0.85 Å/pix.
x 400 pix.
= 340.84 Å		0.85 Å/pix.
x 400 pix.
= 340.84 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 0.8521 Å
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Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.18
Minimum - Maximum-0.72554964 - 1.1282034
Average (Standard dev.)-0.00023311605 (±0.021439278)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 340.84 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_40122_msk_1.map
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Additional map: Unsharpened map

Fileemd_40122_additional_1.map
AnnotationUnsharpened map
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Half map: Half map

Fileemd_40122_half_map_1.map
AnnotationHalf map
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Half map: #1

Fileemd_40122_half_map_2.map
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Sample components

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Entire : Complex of beta-2 adrenergic receptor and Gs heterotrimer, 10 sec...

EntireName: Complex of beta-2 adrenergic receptor and Gs heterotrimer, 10 sec post GTP treatment
Components
  • Complex: Complex of beta-2 adrenergic receptor and Gs heterotrimer, 10 sec post GTP treatment
    • Protein or peptide: G protein alpha s (short)
    • Protein or peptide: G protein beta 1
    • Protein or peptide: G protein gamma 2
    • Protein or peptide: Beta-2 adrenergic receptor

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Supramolecule #1: Complex of beta-2 adrenergic receptor and Gs heterotrimer, 10 sec...

SupramoleculeName: Complex of beta-2 adrenergic receptor and Gs heterotrimer, 10 sec post GTP treatment
type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: G protein alpha s (short)

MacromoleculeName: G protein alpha s (short) / type: protein_or_peptide / ID: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
SequenceString: MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKSTIVKQM RILHVNGFNG DSEKATKVQD IKNNLKEAIE TIVAAMSNLV PPVELANPEN QFRVDYILSV MNVPDFDFPP EFYEHAKALW EDEGVRACYE RSNEYQLIDC AQYFLDKIDV ...String:
MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKSTIVKQM RILHVNGFNG DSEKATKVQD IKNNLKEAIE TIVAAMSNLV PPVELANPEN QFRVDYILSV MNVPDFDFPP EFYEHAKALW EDEGVRACYE RSNEYQLIDC AQYFLDKIDV IKQADYVPSD QDLLRCRVLT SGIFETKFQV DKVNFHMFDV GGQRDERRKW IQCFNDVTAI IFVVASSSYN MVIREDNQTN RLQEALNLFK SIWNNRWLRT ISVILFLNKQ DLLAEKVLAG KSKIEDYFPE FARYTTPEDA TPEPGEDPRV TRAKYFIRDE FLRISTASGD GRHYCYPHFT CAVDTENIRR VFNDCRDIIQ RMHLRQYELL

UniProtKB: Isoform Gnas-2 of Guanine nucleotide-binding protein G(s) subunit alpha isoforms short

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Macromolecule #2: G protein beta 1

MacromoleculeName: G protein beta 1 / type: protein_or_peptide / ID: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
SequenceString: GSSGSELDQL RQEAEQLKNQ IRDARKACAD ATLSQITNNI DPVGRIQMRT RRTLRGHLAK IYAMHWGTDS RLLVSASQDG KLIIWDSYTT NKVHAIPLRS SWVMTCAYAP SGNYVACGGL DNICSIYNLK TREGNVRVSR ELAGHTGYLS CCRFLDDNQI VTSSGDTTCA ...String:
GSSGSELDQL RQEAEQLKNQ IRDARKACAD ATLSQITNNI DPVGRIQMRT RRTLRGHLAK IYAMHWGTDS RLLVSASQDG KLIIWDSYTT NKVHAIPLRS SWVMTCAYAP SGNYVACGGL DNICSIYNLK TREGNVRVSR ELAGHTGYLS CCRFLDDNQI VTSSGDTTCA LWDIETGQQT TTFTGHTGDV MSLSLAPDTR LFVSGACDAS AKLWDVREGM CRQTFTGHES DINAICFFPN GNAFATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAGHDNRVSC LGVTDDGMAV ATGSWDSFLK IWN

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

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Macromolecule #3: G protein gamma 2

MacromoleculeName: G protein gamma 2 / type: protein_or_peptide / ID: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
SequenceString:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

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Macromolecule #4: Beta-2 adrenergic receptor

MacromoleculeName: Beta-2 adrenergic receptor / type: protein_or_peptide / ID: 4 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
SequenceString: MKTIIALSYI FCLVFADYKD DDDAMGQPGN GSAFLLAPNR SHAPDHDVEN LYFQGTQQRD EVWVVGMGIV MSLIVLAIVF GNVLVITAIA KFERLQTVTN YFITSLACAD LVMGLAVVPF GAAHILTKTW TFGNFWCEFW TSIDVLCVTA SIETLCVIAV DRYFAITSPF ...String:
MKTIIALSYI FCLVFADYKD DDDAMGQPGN GSAFLLAPNR SHAPDHDVEN LYFQGTQQRD EVWVVGMGIV MSLIVLAIVF GNVLVITAIA KFERLQTVTN YFITSLACAD LVMGLAVVPF GAAHILTKTW TFGNFWCEFW TSIDVLCVTA SIETLCVIAV DRYFAITSPF KYQSLLTKNK ARVIILMVWI VSGLTSFLPI QMHWYRATHQ EAINCYAEET CCDFFTNQAY AIASSIVSFY VPLVIMVFVY SRVFQEAKRQ LQKIDKSEGR FHVQNLSQVE QDGRTGHGLR RSSKFCLKEH KALKTLGIIM GTFTLCWLPF FIVNIVHVIQ DNLIRKEVYI LLNWIGYVNS GFNPLIYCRS PDFRIAFQEL LCLRRSSLKA YGNGYSSNGN TGEQSGLEVL FQGPYHVEQE KENKLLAEDL PGTEDFVGHQ GTVPSDNIDS QGRNASTNDS LLETSQVAPA

UniProtKB: Beta-2 adrenergic receptor

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5
GridModel: UltrAuFoil R1.2/1.3 / Support film - Material: GOLD / Support film - topology: HOLEY
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Detector mode: COUNTING / Average electron dose: 25.83 e/Å2
Details: 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 ...Details: 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.
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 9659860
Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 80161
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION / Software - Name: cryoSPARC
Final 3D classificationSoftware - Name: cryoSPARC
FSC plot (resolution estimation)

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