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- PDB-7wq4: Galanin-bound galanin receptor 2 in complex with Gq -

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Basic information

Entry
Database: PDB / ID: 7wq4
TitleGalanin-bound galanin receptor 2 in complex with Gq
Components
  • (Guanine nucleotide-binding protein ...) x 2
  • Engineered Guanine nucleotide-binding protein G(q) subunit alpha
  • Galanin
  • Galanin receptor type 2
  • Nb35
KeywordsMEMBRANE PROTEIN / GPCR / galanin receptor 2 / galanin / Gq
Function / homology
Function and homology information


galanin-activated signaling pathway / galanin receptor binding / type 1 galanin receptor binding / type 2 galanin receptor binding / type 3 galanin receptor binding / galanin receptor activity / positive regulation of large conductance calcium-activated potassium channel activity / parental behavior / positive regulation of timing of catagen / positive regulation of cortisol secretion ...galanin-activated signaling pathway / galanin receptor binding / type 1 galanin receptor binding / type 2 galanin receptor binding / type 3 galanin receptor binding / galanin receptor activity / positive regulation of large conductance calcium-activated potassium channel activity / parental behavior / positive regulation of timing of catagen / positive regulation of cortisol secretion / regulation of glucocorticoid metabolic process / inositol phosphate metabolic process / negative regulation of lymphocyte proliferation / phosphatidylinositol metabolic process / : / neuropeptide hormone activity / G-protein activation / Activation of the phototransduction cascade / Glucagon-type ligand receptors / Thromboxane signalling through TP receptor / Sensory perception of sweet, bitter, and umami (glutamate) taste / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Ca2+ pathway / G alpha (z) signalling events / feeding behavior / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / neuropeptide binding / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / G alpha (q) signalling events / G alpha (i) signalling events / Thrombin signalling through proteinase activated receptors (PARs) / 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 / insulin secretion / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Ca2+ pathway / Thrombin signalling through proteinase activated receptors (PARs) / G alpha (z) signalling events / Extra-nuclear estrogen signaling / photoreceptor outer segment membrane / G alpha (s) signalling events / G alpha (q) signalling events / 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 / response to immobilization stress / peptide hormone binding / photoreceptor outer segment / neuropeptide signaling pathway / cardiac muscle cell apoptotic process / photoreceptor inner segment / secretory granule / muscle contraction / Peptide ligand-binding receptors / response to insulin / response to estrogen / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / adenylate cyclase-activating G protein-coupled receptor signaling pathway / neuron projection development / cellular response to catecholamine stimulus / adenylate cyclase-activating dopamine receptor signaling pathway / nervous system development / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / sensory perception of taste / signaling receptor complex adaptor activity / retina development in camera-type eye / positive regulation of cytosolic calcium ion concentration / cell body / GTPase binding / G alpha (i) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / cellular response to hypoxia / learning or memory / cell surface receptor signaling pathway / cell population proliferation
Similarity search - Function
Galanin receptor 2 / Galanin receptor family / Galanin / Galanin precursor / Galanin message associated peptide (GMAP) / Galanin / Galanin message associated peptide (GMAP) / Galanin signature. / Galanin / YVTN repeat-like/Quinoprotein amine dehydrogenase ...Galanin receptor 2 / Galanin receptor family / Galanin / Galanin precursor / Galanin message associated peptide (GMAP) / Galanin / Galanin message associated peptide (GMAP) / Galanin signature. / Galanin / YVTN repeat-like/Quinoprotein amine dehydrogenase / 7 Propeller / Methylamine Dehydrogenase; Chain H / 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 / 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 / Immunoglobulins / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
CHOLESTEROL / Galanin receptor type 2 / Galanin peptides / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Similarity search - Component
Biological speciesHomo sapiens (human)
Rattus (rats)
Lama glama (llama)
Bos taurus (domestic cattle)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.6 Å
AuthorsDuan, J. / Shen, D.D. / Xu, H.E. / Zhang, Y. / Jiang, Y.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: Nat Commun / Year: 2022
Title: Molecular basis for allosteric agonism and G protein subtype selectivity of galanin receptors
Authors: Duan, J. / Shen, D.D. / Zhao, T. / Guo, S. / He, X. / Yin, W. / Xu, P. / Ji, Y. / Chen, L.N. / Liu, J. / Zhang, H. / Liu, Q. / Shi, Y. / Cheng, X. / Jiang, H. / Eric Xu, H. / Zhang, Y. / Xie, X. / Jiang, Y.
History
DepositionJan 24, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Apr 20, 2022Provider: repository / Type: Initial release
Revision 1.0Apr 20, 2022Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Apr 20, 2022Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
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Revision 1.0Apr 20, 2022Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
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Revision 1.2Nov 20, 2024Group: Data collection / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_admin.last_update / _pdbx_entry_details.has_protein_modification
Revision 1.3Jun 25, 2025Group: Data collection / Category: em_admin / em_software / Item: _em_admin.last_update / _em_software.name
Revision 1.1Jun 25, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Data processing / Experimental summary / Data content type: EM metadata / EM metadata / Category: em_admin / em_software / Data content type: EM metadata / EM metadata / Item: _em_admin.last_update / _em_software.name

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
R: Galanin receptor type 2
L: Galanin
A: Engineered Guanine nucleotide-binding protein G(q) subunit alpha
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
N: Nb35
G: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)147,3808
Polymers146,6066
Non-polymers7732
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 2 types, 2 molecules RA

#1: Protein Galanin receptor type 2 / GAL2-R / GALR-2


Mass: 41744.082 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GALR2, GALNR2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: O43603
#3: Protein Engineered Guanine nucleotide-binding protein G(q) subunit alpha


Mass: 41708.383 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Spodoptera frugiperda (fall armyworm)

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Guanine nucleotide-binding protein ... , 2 types, 2 molecules BG

#4: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 37416.930 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus (rats) / Gene: Gnb1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P54311
#6: 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

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Protein/peptide / Antibody / Non-polymers , 3 types, 4 molecules LN

#2: Protein/peptide Galanin


Mass: 3161.446 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) / References: UniProt: P22466
#5: Antibody Nb35


Mass: 14714.320 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Lama glama (llama) / Production host: Escherichia coli (E. coli)
#7: Chemical ChemComp-CLR / CHOLESTEROL


Mass: 386.654 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C27H46O

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Details

Has ligand of interestN
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

Component
IDNameTypeEntity IDParent-IDSource
1Galanin-GAL2R-Gq-Nb35COMPLEX#1-#60MULTIPLE SOURCES
2Galanin receptor type 2COMPLEX#11RECOMBINANT
3GalaninCOMPLEX#21SYNTHETIC
4Engineered Guanine nucleotide-binding protein G(q) subunit alphaCOMPLEX#31RECOMBINANT
5Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1COMPLEX#41RECOMBINANT
6Nb35COMPLEX#51RECOMBINANT
7Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2COMPLEX#61RECOMBINANT
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
21Homo sapiens (human)9606
33Homo sapiens (human)9606
44Rattus (rats)10114
55Lama glama (llama)9844
66Bos taurus (domestic cattle)9913
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
21Spodoptera frugiperda (fall armyworm)7108
33Spodoptera frugiperda (fall armyworm)7108
44Spodoptera frugiperda (fall armyworm)7108
55Escherichia coli (E. coli)562
66Spodoptera frugiperda (fall armyworm)7108
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: 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: 2500 nm / Nominal defocus min: 500 nm
Image recordingElectron dose: 64 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.17.1_3660: / Classification: refinement
EM softwareName: PHENIX / Category: model refinement
CTF correctionType: NONE
3D reconstructionResolution: 2.6 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 255766 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0018477
ELECTRON MICROSCOPYf_angle_d0.37811502
ELECTRON MICROSCOPYf_dihedral_angle_d7.7093049
ELECTRON MICROSCOPYf_chiral_restr0.0381309
ELECTRON MICROSCOPYf_plane_restr0.0031452

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