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- PDB-9m2s: Cryo-EM structure of the cadaverine-bound zTAAR13c-Gs complex -

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Basic information

Entry
Database: PDB / ID: 9m2s
TitleCryo-EM structure of the cadaverine-bound zTAAR13c-Gs complex
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • Nb35
  • Trace amine-associated receptor 13c
KeywordsSTRUCTURAL PROTEIN / GPCR / combinatorial coding / zebrafish / TAAR13 family
Function / homology
Function and homology information


soluble molecule recognition / Amine ligand-binding receptors / polyamine binding / G protein-coupled amine receptor activity / olfactory receptor activity / detection of chemical stimulus involved in sensory perception of smell / putrescine binding / response to odorant / trace-amine receptor activity / sensory perception of chemical stimulus ...soluble molecule recognition / Amine ligand-binding receptors / polyamine binding / G protein-coupled amine receptor activity / olfactory receptor activity / detection of chemical stimulus involved in sensory perception of smell / putrescine binding / response to odorant / trace-amine receptor activity / sensory perception of chemical stimulus / 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 / 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 / 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 / Thrombin signalling through proteinase activated receptors (PARs) / signaling receptor complex adaptor activity / retina development in camera-type eye / GTPase binding / Ca2+ pathway / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / 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 / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytoplasm / cytosol
Similarity search - Function
Trace amine associated receptor family / : / 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 ...Trace amine associated receptor family / : / 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. / 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
Similarity search - Domain/homology
PENTANE-1,5-DIAMINE / 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 / Trace amine-associated receptor 13c
Similarity search - Component
Biological speciesHomo sapiens (human)
Lama glama (llama)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.78 Å
AuthorsZheng, Y. / Zhao, S.W.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)2022YFA1302900 China
CitationJournal: To Be Published
Title: Molecular recognition of diamines by combinatorial coding of the zebrafish TAAR13 family
Authors: Zheng, Y. / Zhao, S.W.
History
DepositionFeb 28, 2025Deposition site: PDBJ / Processing site: PDBC
Revision 1.0Mar 4, 2026Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2026Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2026Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2026Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Mar 4, 2026Data 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
R: Trace amine-associated receptor 13c
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
N: Nb35
A: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
hetero molecules


Theoretical massNumber of molelcules
Total (without water)127,4246
Polymers127,3225
Non-polymers1021
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 BCA

#2: 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.) 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
#5: Protein Guanine nucleotide-binding protein G(s) subunit alpha isoforms short


Mass: 28304.914 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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Protein / Antibody / Non-polymers , 3 types, 3 molecules RN

#1: Protein Trace amine-associated receptor 13c


Mass: 38466.809 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: Sequence reference for source organism Homo sapiens is not available in UniProt at the time of biocuration. Current sequence reference is from UniProt id Q5QNP2.
Source: (gene. exp.) Homo sapiens (human) / Gene: taar13c / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q5QNP2
#4: Antibody Nb35


Mass: 15271.938 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Lama glama (llama) / Production host: Escherichia (bacteria)
#6: Chemical ChemComp-N2P / PENTANE-1,5-DIAMINE


Mass: 102.178 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C5H14N2 / 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: The cadaverine-bound zTAAR13c-Gs complex / Type: COMPLEX / Entity ID: #1-#5 / Source: RECOMBINANT
Source (natural)Organism: Escherichia coli (E. coli)
Source (recombinant)Organism: Escherichia (bacteria)
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: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: DIFFRACTION / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Version: 1.19_4092 / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.78 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 274310 / Symmetry type: POINT
RefinementHighest resolution: 2.78 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0028646
ELECTRON MICROSCOPYf_angle_d0.44311727
ELECTRON MICROSCOPYf_dihedral_angle_d3.7011176
ELECTRON MICROSCOPYf_chiral_restr0.0411324
ELECTRON MICROSCOPYf_plane_restr0.0031494

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