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Open data
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Basic information
| Entry | ![]() | |||||||||
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| Title | Structure of the LM189-Bound beta2AR-Gi Complex | |||||||||
Map data | autosharpened map of lm189 bound b2gi complex | |||||||||
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Keywords | GPCR / SIGNALING PROTEIN-IMMUNE SYSTEM complex | |||||||||
| Function / homology | Function and homology informationpositive regulation of mini excitatory postsynaptic potential / beta2-adrenergic receptor activity / negative regulation of smooth muscle contraction / AMPA selective glutamate receptor signaling pathway / norepinephrine-epinephrine-mediated vasodilation involved in regulation of systemic arterial blood pressure / positive regulation of autophagosome maturation / 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 / norepinephrine-epinephrine-mediated vasodilation involved in regulation of systemic arterial blood pressure / positive regulation of autophagosome maturation / heat generation / norepinephrine binding / Adrenoceptors / positive regulation of lipophagy / negative regulation of G protein-coupled receptor signaling pathway / negative regulation of multicellular organism growth / response to psychosocial stress / adrenergic receptor signaling pathway / endosome to lysosome transport / 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 / adenylate cyclase inhibitor activity / intercellular bridge / regulation of sodium ion transport / adenylate cyclase-activating adrenergic receptor signaling pathway / positive regulation of protein localization to cell cortex / T cell migration / Adenylate cyclase inhibitory pathway / response to prostaglandin E / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding / adenylate cyclase regulator activity / adenylate cyclase-inhibiting serotonin receptor signaling pathway / brown fat cell differentiation / receptor-mediated endocytosis / cellular response to forskolin / 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 / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / response to peptide hormone / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / centriolar satellite / G-protein beta/gamma-subunit complex binding / cellular response to amyloid-beta / 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 / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / G beta:gamma signalling through CDC42 / Prostacyclin signalling through prostacyclin receptor / 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 / Glucagon-type ligand receptors / Sensory perception of sweet, bitter, and umami (glutamate) taste / mitotic spindle / GDP binding / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / cellular response to catecholamine stimulus / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / Cargo recognition for clathrin-mediated endocytosis / G-protein beta-subunit binding / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / G alpha (12/13) signalling events / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle / sensory perception of taste / positive regulation of cold-induced thermogenesis / amyloid-beta binding / Clathrin-mediated endocytosis / Thrombin signalling through proteinase activated receptors (PARs) / signaling receptor complex adaptor activity / microtubule cytoskeleton / retina development in camera-type eye / G protein activity / GTPase binding / Ca2+ pathway Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human) / ![]() | |||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.9 Å | |||||||||
Authors | Casiraghi M / Wang H / Kobilka BK | |||||||||
| Funding support | United States, 1 items
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Citation | Journal: Sci Adv / Year: 2025Title: 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 |
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Structure visualization
| Supplemental images |
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Downloads & links
-EMDB archive
| Map data | emd_44925.map.gz | 56 MB | EMDB map data format | |
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| Header (meta data) | emd-44925-v30.xml emd-44925.xml | 21.8 KB 21.8 KB | Display Display | EMDB header |
| Images | emd_44925.png | 78.4 KB | ||
| Filedesc metadata | emd-44925.cif.gz | 7.3 KB | ||
| Others | emd_44925_half_map_1.map.gz emd_44925_half_map_2.map.gz | 59.5 MB 59.5 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-44925 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-44925 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9buyMC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_44925.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Annotation | autosharpened map of lm189 bound b2gi complex | ||||||||||||||||||||||||||||||||||||
| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.111 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: half map of lm189 bound b2gi complex
| File | emd_44925_half_map_1.map | ||||||||||||
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| Annotation | half map of lm189 bound b2gi complex | ||||||||||||
| Projections & Slices |
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| Density Histograms |
-Half map: half map of lm189 bound b2gi complex
| File | emd_44925_half_map_2.map | ||||||||||||
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| Annotation | half map of lm189 bound b2gi complex | ||||||||||||
| Projections & Slices |
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| Density Histograms |
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Sample components
-Entire : beta2 adrenergic receptor-Gi protein complex
| Entire | Name: beta2 adrenergic receptor-Gi protein complex |
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| Components |
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-Supramolecule #1: beta2 adrenergic receptor-Gi protein complex
| Supramolecule | Name: beta2 adrenergic receptor-Gi protein complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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| Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Guanine nucleotide-binding protein G(i) subunit alpha-1
| Macromolecule | Name: Guanine nucleotide-binding protein G(i) subunit alpha-1 type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 40.415031 KDa |
| Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
| Sequence | String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKSTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKSTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVGGQRSER KKWIHCFEGV TAIIFCVALS DYDLVLAEDE EM NRMHESM KLFDSICNNK WFTDTSIILF LNKKDLFEEK IKKSPLTICY PEYAGSNTYE EAAAYIQCQF EDLNKRKDTK EIY THFTCA TDTKNVQFVF DAVTDVIIKN NLKDCGLF UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1 |
-Macromolecule #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
| Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 37.671102 KDa |
| Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
| Sequence | String: PGSSGSELDQ LRQEAEQLKN QIRDARKACA DATLSQITNN IDPVGRIQMR TRRTLRGHLA KIYAMHWGTD SRLLVSASQD GKLIIWDSY TTNKVHAIPL RSSWVMTCAY APSGNYVACG GLDNICSIYN LKTREGNVRV SRELAGHTGY LSCCRFLDDN Q IVTSSGDT ...String: PGSSGSELDQ LRQEAEQLKN QIRDARKACA DATLSQITNN IDPVGRIQMR TRRTLRGHLA KIYAMHWGTD SRLLVSASQD GKLIIWDSY TTNKVHAIPL RSSWVMTCAY APSGNYVACG GLDNICSIYN LKTREGNVRV SRELAGHTGY LSCCRFLDDN Q IVTSSGDT TCALWDIETG QQTTTFTGHT GDVMSLSLAP DTRLFVSGAC DASAKLWDVR EGMCRQTFTG HESDINAICF FP NGNAFAT GSDDATCRLF DLRADQELMT YSHDNIICGI TSVSFSKSGR LLLAGYDDFN CNVWDALKAD RAGVLAGHDN RVS CLGVTD DGMAVATGSW DSFLKIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
| Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 7.861143 KDa |
| Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
| Sequence | String: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-Macromolecule #4: scFv16
| Macromolecule | Name: scFv16 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 27.784896 KDa |
| Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
| Sequence | String: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...String: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL KAAAHHHHHH HH |
-Macromolecule #5: Beta-2 adrenergic receptor
| Macromolecule | Name: Beta-2 adrenergic receptor / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 51.767242 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MKTIIALSYI FCLVFADYKD DDDAMGQPGN GSAFLLAPNR SHAPDHDVEN LYFQGTQQRD EVWVVGMGIV MSLIVLAIVF GNVLVITAI AKFERLQTVT NYFITSLACA DLVMGLAVVP FGAAHILTKT WTFGNFWCEF WTSIDVLCVT ASIETLCVIA V DRYFAITS ...String: MKTIIALSYI FCLVFADYKD DDDAMGQPGN GSAFLLAPNR SHAPDHDVEN LYFQGTQQRD EVWVVGMGIV MSLIVLAIVF GNVLVITAI AKFERLQTVT NYFITSLACA DLVMGLAVVP FGAAHILTKT WTFGNFWCEF WTSIDVLCVT ASIETLCVIA V DRYFAITS PFKYQSLLTK NKARVIILMV WIVSGLTSFL PIQMHWYRAT HQEAINCYAE ETCCDFFTNQ AYAIASSIVS FY VPLVIMV FVYSRVFQEA KRQLQKIDKS EGRFHVQNLS QVEQDGRTGH GLRRSSKFCL KEHKALKTLG IIMGTFTLCW LPF FIVNIV HVIQDNLIRK EVYILLNWIG YVNSGFNPLI YCRSPDFRIA FQELLCLRRS SLKAYGNGYS SNGNTGEQSG LEVL FQGPY HVEQEKENKL LAEDLPGTED FVGHQGTVPS DNIDSQGRNA STNDSLLETS QVAPA UniProtKB: Beta-2 adrenergic receptor |
-Macromolecule #6: CHOLESTEROL
| Macromolecule | Name: CHOLESTEROL / type: ligand / ID: 6 / Number of copies: 3 / Formula: CLR |
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| Molecular weight | Theoretical: 386.654 Da |
| Chemical component information | ![]() ChemComp-CLR: |
-Macromolecule #7: 4-[(1R)-1-hydroxy-2-{[6-(4-phenylbutoxy)hexyl]amino}ethyl]benzene...
| Macromolecule | Name: 4-[(1R)-1-hydroxy-2-{[6-(4-phenylbutoxy)hexyl]amino}ethyl]benzene-1,2-diol type: ligand / ID: 7 / Number of copies: 1 / Formula: A1ASM |
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| Molecular weight | Theoretical: 401.539 Da |
-Macromolecule #8: N-[(3R)-4-(4-tert-butylphenyl)-3-({2-[(4-methoxyphenyl)sulfanyl]-...
| Macromolecule | Name: N-[(3R)-4-(4-tert-butylphenyl)-3-({2-[(4-methoxyphenyl)sulfanyl]-5-[methyl(propan-2-yl)sulfamoyl]benzene-1-carbonyl}amino)butanoyl]glycine type: ligand / ID: 8 / Number of copies: 1 / Formula: KBY |
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| Molecular weight | Theoretical: 669.851 Da |
| Chemical component information | ![]() ChemComp-KBY: |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 52.5 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.7000000000000001 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
United States, 1 items
Citation






























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Y (Row.)
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Trichoplusia ni (cabbage looper)

Processing
FIELD EMISSION GUN

