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- PDB-9kpd: Cryo-EM structure of GPCR16-miniGs complex -

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Basic information

Entry
Database: PDB / ID: 9kpd
TitleCryo-EM structure of GPCR16-miniGs complex
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • Fusion protein 1,exo-alpha-sialidase,Taste receptor type 2 member 16,Fusion protein 2,exo-alpha-sialidase,Taste receptor type 2 member 16
  • Nanobody 35
KeywordsSIGNALING PROTEIN / GPCR / Complex
Function / homology
Function and homology information


bitter taste receptor activity / detection of chemical stimulus involved in sensory perception of bitter taste / ganglioside catabolic process / Class C/3 (Metabotropic glutamate/pheromone receptors) / oligosaccharide catabolic process / exo-alpha-sialidase / exo-alpha-sialidase activity / PKA activation in glucagon signalling / hair follicle placode formation / developmental growth ...bitter taste receptor activity / detection of chemical stimulus involved in sensory perception of bitter taste / ganglioside catabolic process / Class C/3 (Metabotropic glutamate/pheromone receptors) / oligosaccharide catabolic process / exo-alpha-sialidase / exo-alpha-sialidase activity / PKA activation in glucagon signalling / hair follicle placode formation / developmental growth / D1 dopamine receptor binding / intracellular transport / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / regulation of insulin secretion / cellular response to glucagon stimulus / adenylate cyclase activator activity / trans-Golgi network membrane / negative regulation of inflammatory response to antigenic stimulus / trans-Golgi network / G protein-coupled receptor activity / bone development / G-protein beta/gamma-subunit complex binding / platelet aggregation / Olfactory Signaling Pathway / cognition / 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 / adenylate cyclase-activating G protein-coupled 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 / 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 / Sensory perception of sweet, bitter, and umami (glutamate) taste / 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 / 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 / sensory perception of smell / GPER1 signaling / 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 / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / positive regulation of cold-induced thermogenesis / G protein activity / GTPase binding / Ca2+ pathway / retina development in camera-type eye / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / fibroblast proliferation / G alpha (i) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / G protein-coupled receptor signaling pathway / external side of plasma membrane / lysosomal membrane / GTPase activity / intracellular membrane-bounded organelle / synapse / protein-containing complex binding / GTP binding / endoplasmic reticulum / signal transduction / extracellular exosome / extracellular region / metal ion binding / membrane / plasma membrane / cytosol / cytoplasm
Similarity search - Function
: / Taste receptor type 2 / Taste receptor protein (TAS2R) / Glycoside hydrolase, family 33, N-terminal / Trans-sialidase, domain 3 / Sialidase, N-terminal domain / BNR repeat-like domain / Laminin G domain / Laminin G domain / Sialidase family ...: / Taste receptor type 2 / Taste receptor protein (TAS2R) / Glycoside hydrolase, family 33, N-terminal / Trans-sialidase, domain 3 / Sialidase, N-terminal domain / BNR repeat-like domain / Laminin G domain / Laminin G domain / Sialidase family / Sialidase / YSIRK type signal peptide / YSIRK Gram-positive signal peptide / Gram-positive cocci surface proteins LPxTG motif profile. / Sialidase superfamily / LPXTG cell wall anchor domain / G-protein alpha subunit, group S / 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 / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / Concanavalin A-like lectin/glucanase domain superfamily / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / WD domain, G-beta repeat / 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
2-(hydroxymethyl)phenyl beta-D-glucopyranoside / exo-alpha-sialidase / 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(s) subunit alpha isoforms short / Taste receptor type 2 member 16
Similarity search - Component
Biological speciesHomo sapiens (human)
Streptococcus pneumoniae (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.84 Å
AuthorsWang, X. / Wu, L.J. / Hua, T. / Liu, Z.J.
Funding support China, 1items
OrganizationGrant numberCountry
Chinese Academy of SciencesXDB37030104 China
CitationJournal: To Be Published
Title: Cryo-EM structure of GPCR16-miniGs complex
Authors: Wang, X. / Wu, L.J. / Hua, T. / Liu, Z.J.
History
DepositionNov 22, 2024Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Apr 2, 2025Provider: repository / Type: Initial release
Revision 1.0Apr 2, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Apr 2, 2025Data content type: Additional map / Part number: 1 / Data content type: Additional map / Provider: repository / Type: Initial release
Revision 1.0Apr 2, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Apr 2, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Apr 2, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Apr 2, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short,Guanine nucleotide-binding protein G(s) subunit alpha isoforms short,Guanine nucleotide-binding protein G(t) subunit alpha-3
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
G: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
N: Nanobody 35
R: Fusion protein 1,exo-alpha-sialidase,Taste receptor type 2 member 16,Fusion protein 2,exo-alpha-sialidase,Taste receptor type 2 member 16
hetero molecules


Theoretical massNumber of molelcules
Total (without water)207,1606
Polymers206,8745
Non-polymers2861
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 ABG

#1: Protein Guanine nucleotide-binding protein G(s) subunit alpha isoforms short,Guanine nucleotide-binding protein G(s) subunit alpha isoforms short,Guanine nucleotide-binding protein G(t) subunit alpha-3 / Adenylate cyclase-stimulating G alpha protein


Mass: 30583.334 Da / Num. of mol.: 1 / Fragment: Gs-Gt chimeric,Gs-Gt chimeric
Source method: isolated from a genetically manipulated source
Details: Author stated that the map submitted was automatically generated by deepenhancer in CryoSPARC.
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAS, GNAS1, GSP / Production host: Spodoptera frugiperda (fall armyworm)
References: UniProt: P63092, Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement
#2: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 39728.426 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: Spodoptera frugiperda (fall armyworm) / 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: Spodoptera frugiperda (fall armyworm) / References: UniProt: P59768

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Antibody / Protein / Sugars , 3 types, 3 molecules NR

#4: Antibody Nanobody 35


Mass: 14845.516 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)
#5: Protein Fusion protein 1,exo-alpha-sialidase,Taste receptor type 2 member 16,Fusion protein 2,exo-alpha-sialidase,Taste receptor type 2 member 16 / T2R16


Mass: 113855.758 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human), (gene. exp.) Streptococcus pneumoniae (bacteria)
Gene: nanA_3, SAMEA2467335_02052, TAS2R16 / Production host: Spodoptera frugiperda (fall armyworm)
References: UniProt: A0A4J1WX37, UniProt: Q9NYV7, exo-alpha-sialidase
#6: Sugar ChemComp-SA0 / 2-(hydroxymethyl)phenyl beta-D-glucopyranoside / Salicin / 2-(hydroxymethyl)phenyl beta-D-glucoside / 2-(hydroxymethyl)phenyl D-glucoside / 2-(hydroxymethyl)phenyl glucoside


Type: D-saccharide / Mass: 286.278 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C13H18O7 / Feature type: SUBJECT OF INVESTIGATION

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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: GPCR16 complexed with miniGSG / Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
21Homo sapiens (human)9606
31Streptococcus pneumoniae (bacteria)1313
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.5
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: TFS 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: 1200 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

EM software
IDNameVersionCategory
4cryoSPARC4CTF correction
7UCSF Chimeramodel fitting
13PHENIXmodel refinement
CTF correctionType: NONE
3D reconstructionResolution: 2.84 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 122713 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL
Atomic model buildingSource name: AlphaFold / Type: in silico model
RefinementHighest resolution: 2.84 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0048414
ELECTRON MICROSCOPYf_angle_d0.65411402
ELECTRON MICROSCOPYf_dihedral_angle_d4.3021136
ELECTRON MICROSCOPYf_chiral_restr0.0441293
ELECTRON MICROSCOPYf_plane_restr0.0041440

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