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- PDB-22em: Gi bound kappa-opioid receptor in complex with beta01 -

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Basic information

Entry
Database: PDB / ID: 22em
TitleGi bound kappa-opioid receptor in complex with beta01
Components
  • A1E3Y-PHE-LEU-DLY-A1L9X
  • 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
  • Soluble cytochrome b562,Kappa-type opioid receptor
KeywordsSIGNALING PROTEIN / GPCR / opioid receptor
Function / homology
Function and homology information


Activation of the phototransduction cascade / Olfactory Signaling Pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Prostacyclin signalling through prostacyclin receptor / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / G alpha (z) signalling events / Glucagon-type ligand receptors / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 ...Activation of the phototransduction cascade / Olfactory Signaling Pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Prostacyclin signalling through prostacyclin receptor / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / G alpha (z) signalling events / Glucagon-type ligand receptors / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / response to acrylamide / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / dynorphin receptor activity / Thromboxane signalling through TP receptor / G beta:gamma signalling through BTK / regulation of saliva secretion / sensory perception of temperature stimulus / Thrombin signalling through proteinase activated receptors (PARs) / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G alpha (s) signalling events / positive regulation of eating behavior / Ca2+ pathway / G-protein activation / Extra-nuclear estrogen signaling / G alpha (12/13) signalling events / adenylate cyclase-inhibiting opioid receptor signaling pathway / G alpha (q) signalling events / negative regulation of luteinizing hormone secretion / Vasopressin regulates renal water homeostasis via Aquaporins / GPER1 signaling / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G protein-coupled opioid receptor activity / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / ADP signalling through P2Y purinoceptor 1 / G protein-coupled opioid receptor signaling pathway / G alpha (i) signalling events / positive regulation of dopamine secretion / positive regulation of potassium ion transmembrane transport / receptor serine/threonine kinase binding / maternal behavior / positive regulation of p38MAPK cascade / sensory perception / neuropeptide binding / Activation of G protein gated Potassium channels / G-protein activation / G beta:gamma signalling through PI3Kgamma / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through PLC beta / ADP signalling through P2Y purinoceptor 1 / Thromboxane signalling through TP receptor / Presynaptic function of Kainate receptors / G beta:gamma signalling through CDC42 / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G alpha (12/13) signalling events / Glucagon-type ligand receptors / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Ca2+ pathway / G alpha (z) signalling events / Thrombin signalling through proteinase activated receptors (PARs) / Extra-nuclear estrogen signaling / eating behavior / G alpha (s) signalling events / G alpha (q) signalling events / photoreceptor outer segment membrane / spectrin binding / G alpha (i) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Vasopressin regulates renal water homeostasis via Aquaporins / alkylglycerophosphoethanolamine phosphodiesterase activity / phototransduction, visible light / photoreceptor outer segment / conditioned place preference / estrous cycle / MECP2 regulates neuronal receptors and channels / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / cardiac muscle cell apoptotic process / T cell migration / behavioral response to cocaine / positive regulation of relaxation of smooth muscle / Adenylate cyclase inhibitory pathway / photoreceptor inner segment / D2 dopamine receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / G protein-coupled serotonin receptor binding / T-tubule / sensory perception of pain / axon terminus / cellular response to forskolin / Peptide ligand-binding receptors / regulation of mitotic spindle organization / chemokine-mediated signaling pathway
Similarity search - Function
Kappa opioid receptor / Opioid receptor / Cytochrome b562 / Cytochrome b562 / Cytochrome c/b562 / G-protein alpha subunit, group I / Serpentine type 7TM GPCR chemoreceptor Srsx / G protein alpha subunit, helical insertion / G protein alpha subunit / Guanine nucleotide binding protein (G-protein), alpha subunit ...Kappa opioid receptor / Opioid receptor / Cytochrome b562 / Cytochrome b562 / Cytochrome c/b562 / G-protein alpha subunit, group I / Serpentine type 7TM GPCR chemoreceptor Srsx / G protein alpha subunit, helical insertion / G protein alpha subunit / Guanine nucleotide binding protein (G-protein), alpha subunit / G-protein alpha subunit / G-alpha domain profile. / 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. / 7 transmembrane receptor (rhodopsin family) / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 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
Soluble cytochrome b562 / Kappa-type opioid receptor / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(i) subunit alpha-1 / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Similarity search - Component
Biological speciesHomo sapiens (human)
Mus musculus (house mouse)
Bos taurus (domestic cattle)
Escherichia coli (E. coli)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.86 Å
AuthorsZhang, H. / Wang, R. / Shi, P. / He, X. / Zhu, Q. / Xu, Y. / Yuan, Q. / Hu, W. / Wu, K. / Zheng, Y. ...Zhang, H. / Wang, R. / Shi, P. / He, X. / Zhu, Q. / Xu, Y. / Yuan, Q. / Hu, W. / Wu, K. / Zheng, Y. / Zhou, L. / Liang, J. / Lv, P. / Xu, Z. / Zhuang, Y. / Xu, H. / Wang, Y. / Tian, C.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32130022 China
CitationJournal: To Be Published
Title: Gi bound kappa-opioid receptor in complex with beta01
Authors: Zhang, H. / Wang, R. / Shi, P. / He, X. / Zhu, Q. / Xu, Y. / Yuan, Q. / Hu, W. / Wu, K. / Zheng, Y. / Zhou, L. / Liang, J. / Lv, P. / Xu, Z. / Zhuang, Y. / Xu, H. / Wang, Y. / Tian, C.
History
DepositionJan 8, 2026Deposition site: PDBJ / Processing site: PDBC
Revision 1.0May 6, 2026Provider: repository / Type: Initial release
Revision 1.0May 6, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0May 6, 2026Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0May 6, 2026Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0May 6, 2026Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0May 6, 2026Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

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Assembly

Deposited unit
B: Guanine nucleotide-binding protein G(i) subunit alpha-1
C: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
D: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
F: Soluble cytochrome b562,Kappa-type opioid receptor
A: A1E3Y-PHE-LEU-DLY-A1L9X


Theoretical massNumber of molelcules
Total (without water)159,3785
Polymers159,3785
Non-polymers00
Water00
1


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

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Components

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


Mass: 40313.863 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAI1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P63096
#2: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 40352.113 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Gnb1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P62874
#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.) Bos taurus (domestic cattle) / Gene: GNG2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P63212
#4: Protein Soluble cytochrome b562,Kappa-type opioid receptor / Cytochrome b-562 / K-OR-1 / KOR-1


Mass: 70171.281 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli), (gene. exp.) Homo sapiens (human)
Gene: cybC, OPRK1, OPRK / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P0ABE7, UniProt: P41145
#5: Protein/peptide A1E3Y-PHE-LEU-DLY-A1L9X


Mass: 679.850 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
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: Gi bound kappa-opioid receptor in complex with beta01 / Type: COMPLEX / Entity ID: all / Source: MULTIPLE SOURCES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.4
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: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: OTHER / Accelerating voltage: 300 kV / Illumination mode: OTHER
Electron lensMode: OTHER / Nominal defocus max: 3000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

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Processing

EM software
IDNameCategory
1cryoSPARCparticle selection
13cryoSPARC3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.86 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 431242 / Symmetry type: POINT

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