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- PDB-9buy: Structure of the LM189-Bound beta2AR-Gi Complex -

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Basic information

Entry
Database: PDB / ID: 9buy
TitleStructure of the LM189-Bound beta2AR-Gi Complex
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • Beta-2 adrenergic receptor
  • scFv16
KeywordsSIGNALING PROTEIN/IMMUNE SYSTEM / GPCR / SIGNALING PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


positive regulation of mini excitatory postsynaptic potential / beta2-adrenergic receptor activity / negative regulation of smooth muscle contraction / AMPA selective glutamate receptor signaling pathway / positive regulation of autophagosome maturation / norepinephrine-epinephrine-mediated vasodilation involved in regulation of systemic arterial blood pressure / heat generation / norepinephrine binding / Adrenoceptors / positive regulation of lipophagy ...positive regulation of mini excitatory postsynaptic potential / beta2-adrenergic receptor activity / negative regulation of smooth muscle contraction / AMPA selective glutamate receptor signaling pathway / positive regulation of autophagosome maturation / norepinephrine-epinephrine-mediated vasodilation involved in regulation of systemic arterial blood pressure / heat generation / norepinephrine binding / Adrenoceptors / positive regulation of lipophagy / negative regulation of multicellular organism growth / negative regulation of G protein-coupled receptor signaling pathway / endosome to lysosome transport / response to psychosocial stress / adrenergic receptor signaling pathway / diet induced thermogenesis / positive regulation of cAMP/PKA signal transduction / adenylate cyclase binding / smooth muscle contraction / bone resorption / potassium channel regulator activity / positive regulation of bone mineralization / neuronal dense core vesicle / brown fat cell differentiation / adenylate cyclase inhibitor activity / intercellular bridge / positive regulation of protein localization to cell cortex / adenylate cyclase-activating adrenergic receptor signaling pathway / T cell migration / regulation of sodium ion transport / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / response to prostaglandin E / adenylate cyclase regulator activity / G protein-coupled serotonin receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / cellular response to forskolin / receptor-mediated endocytosis / response to cold / regulation of mitotic spindle organization / Regulation of insulin secretion / clathrin-coated endocytic vesicle membrane / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / response to peptide hormone / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / centriolar satellite / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / cellular response to amyloid-beta / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / photoreceptor disc membrane / Sensory perception of sweet, bitter, and umami (glutamate) taste / mitotic spindle / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / GDP binding / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / GPER1 signaling / Cargo recognition for clathrin-mediated endocytosis / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / Clathrin-mediated endocytosis / positive regulation of cold-induced thermogenesis / amyloid-beta binding / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / microtubule cytoskeleton / retina development in camera-type eye / G protein activity / GTPase binding / Ca2+ pathway
Similarity search - Function
Beta 2 adrenoceptor / Adrenoceptor family / G-protein alpha subunit, group I / Serpentine type 7TM GPCR chemoreceptor Srsx / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / G-protein, gamma subunit ...Beta 2 adrenoceptor / Adrenoceptor family / G-protein alpha subunit, group I / Serpentine type 7TM GPCR chemoreceptor Srsx / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / 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 / G protein beta WD-40 repeat protein / 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. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
: / CHOLESTEROL / Chem-KBY / 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(i) subunit alpha-1
Similarity search - Component
Biological speciesHomo sapiens (human)
Mus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsCasiraghi, M. / Wang, H. / Kobilka, B.K.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)NS028471 United States
CitationJournal: Sci Adv / Year: 2025
Title: Structure and dynamics determine G protein coupling specificity at a class A GPCR.
Authors: Marina Casiraghi / Haoqing Wang / Patrick C Brennan / Chris Habrian / Harald Hübner / Maximilian F Schmidt / Luis Maul / Biswaranjan Pani / Sherif M F M Bahriz / Bing Xu / Nico Staffen / ...Authors: Marina Casiraghi / Haoqing Wang / Patrick C Brennan / Chris Habrian / Harald Hübner / Maximilian F Schmidt / Luis Maul / Biswaranjan Pani / Sherif M F M Bahriz / Bing Xu / Nico Staffen / Tufa E Assafa / Bohan Chen / Elizabeth White / Roger K Sunahara / Asuka Inoue / Yang K Xiang / Robert J Lefkowitz / Ehud Y Isacoff / Nathaniel Nucci / Peter Gmeiner / Michael T Lerch / Brian K Kobilka /
Abstract: G protein-coupled receptors (GPCRs) exhibit varying degrees of selectivity for different G protein isoforms. Despite the abundant structures of GPCR-G protein complexes, little is known about the ...G protein-coupled receptors (GPCRs) exhibit varying degrees of selectivity for different G protein isoforms. Despite the abundant structures of GPCR-G protein complexes, little is known about the mechanism of G protein coupling specificity. The β-adrenergic receptor is an example of GPCR with high selectivity for Gαs, the stimulatory G protein for adenylyl cyclase, and much weaker for the Gαi family of G proteins inhibiting adenylyl cyclase. By developing a Gαi-biased agonist (LM189), we provide structural and biophysical evidence supporting that distinct conformations at ICL2 and TM6 are required for coupling of the different G protein subtypes Gαs and Gαi. These results deepen our understanding of G protein specificity and bias and can accelerate the design of ligands that select for preferred signaling pathways.
History
DepositionMay 17, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0May 28, 2025Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Guanine nucleotide-binding protein G(i) subunit alpha-1
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
C: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
E: scFv16
R: Beta-2 adrenergic receptor
hetero molecules


Theoretical massNumber of molelcules
Total (without water)167,73110
Polymers165,4995
Non-polymers2,2315
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABC

#1: Protein Guanine nucleotide-binding protein G(i) subunit alpha-1 / Adenylate cyclase-inhibiting G alpha protein


Mass: 40415.031 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAI1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P63096
#2: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 37671.102 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P62873
#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7861.143 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P59768

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Antibody / Protein , 2 types, 2 molecules ER

#4: Antibody scFv16


Mass: 27784.896 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Production host: Trichoplusia ni (cabbage looper)
#5: Protein Beta-2 adrenergic receptor / Beta-2 adrenoreceptor / Beta-2 adrenoceptor


Mass: 51767.242 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ADRB2, ADRB2R, B2AR / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P07550

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Non-polymers , 3 types, 5 molecules

#6: Chemical ChemComp-CLR / CHOLESTEROL


Mass: 386.654 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C27H46O
#7: Chemical ChemComp-A1ASM / 4-[(1R)-1-hydroxy-2-{[6-(4-phenylbutoxy)hexyl]amino}ethyl]benzene-1,2-diol


Mass: 401.539 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C24H35NO4 / Feature type: SUBJECT OF INVESTIGATION
#8: Chemical ChemComp-KBY / N-[(3R)-4-(4-tert-butylphenyl)-3-({2-[(4-methoxyphenyl)sulfanyl]-5-[methyl(propan-2-yl)sulfamoyl]benzene-1-carbonyl}amino)butanoyl]glycine


Mass: 669.851 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C34H43N3O7S2

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Details

Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: beta2 adrenergic receptor-Gi protein complex / Type: COMPLEX / Entity ID: #1-#5 / Source: MULTIPLE SOURCES
Molecular weightExperimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 700 nm
Image recordingElectron dose: 52.5 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

EM softwareName: PHENIX / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 477875 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0038834
ELECTRON MICROSCOPYf_angle_d0.58112020
ELECTRON MICROSCOPYf_dihedral_angle_d5.6731244
ELECTRON MICROSCOPYf_chiral_restr0.0421389
ELECTRON MICROSCOPYf_plane_restr0.0041492

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