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- PDB-8c1w: Tetrameric 5-HT3A receptor in Salipro (apo, asymmetric) -

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Basic information

Entry
Database: PDB / ID: 8c1w
TitleTetrameric 5-HT3A receptor in Salipro (apo, asymmetric)
Components5-hydroxytryptamine receptor 3A
KeywordsMEMBRANE PROTEIN / 5-HT3R / Serotonin / receptor / tetramer
Function / homology
Function and homology information


Neurotransmitter receptors and postsynaptic signal transmission / serotonin-gated monoatomic cation channel activity / serotonin-activated cation-selective channel complex / serotonin receptor signaling pathway / excitatory extracellular ligand-gated monoatomic ion channel activity / serotonin binding / inorganic cation transmembrane transport / acetylcholine-gated monoatomic cation-selective channel activity / cleavage furrow / transmembrane transporter complex ...Neurotransmitter receptors and postsynaptic signal transmission / serotonin-gated monoatomic cation channel activity / serotonin-activated cation-selective channel complex / serotonin receptor signaling pathway / excitatory extracellular ligand-gated monoatomic ion channel activity / serotonin binding / inorganic cation transmembrane transport / acetylcholine-gated monoatomic cation-selective channel activity / cleavage furrow / transmembrane transporter complex / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / presynaptic membrane / postsynaptic membrane / neuron projection / axon / neuronal cell body / glutamatergic synapse / synapse / identical protein binding / plasma membrane
Similarity search - Function
5-hydroxytryptamine 3 receptor / 5-hydroxytryptamine 3 receptor, A subunit / Neurotransmitter-gated ion-channel, conserved site / Neurotransmitter-gated ion-channels signature. / Neurotransmitter-gated ion-channel transmembrane domain / Neurotransmitter-gated ion-channel transmembrane region / Neurotransmitter-gated ion-channel transmembrane domain superfamily / Neuronal acetylcholine receptor / Neurotransmitter-gated ion-channel / Neurotransmitter-gated ion-channel ligand-binding domain ...5-hydroxytryptamine 3 receptor / 5-hydroxytryptamine 3 receptor, A subunit / Neurotransmitter-gated ion-channel, conserved site / Neurotransmitter-gated ion-channels signature. / Neurotransmitter-gated ion-channel transmembrane domain / Neurotransmitter-gated ion-channel transmembrane region / Neurotransmitter-gated ion-channel transmembrane domain superfamily / Neuronal acetylcholine receptor / Neurotransmitter-gated ion-channel / Neurotransmitter-gated ion-channel ligand-binding domain / Neurotransmitter-gated ion-channel ligand-binding domain superfamily / Neurotransmitter-gated ion-channel ligand binding domain
Similarity search - Domain/homology
5-hydroxytryptamine receptor 3A
Similarity search - Component
Biological speciesMus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsIntroini, B. / Kudryashev, M.
Funding support Germany, 1items
OrganizationGrant numberCountry
Alexander von Humboldt FoundationSofja Kovalevskaja Award to MK Germany
Citation
Journal: To Be Published
Title: Tetrameric structure of the serotonin receptor ion channel 5-HT3A
Authors: Introini, B. / Cui, W. / Eckhardt-Sterlau, L. / Tol, M. / Vogel, H. / Yuan, S. / Kudryashev, M.
#1: Journal: Protein Sci / Year: 2018
Title: UCSF ChimeraX: Meeting modern challenges in visualization and analysis.
Authors: Thomas D Goddard / Conrad C Huang / Elaine C Meng / Eric F Pettersen / Gregory S Couch / John H Morris / Thomas E Ferrin /
Abstract: UCSF ChimeraX is next-generation software for the visualization and analysis of molecular structures, density maps, 3D microscopy, and associated data. It addresses challenges in the size, scope, and ...UCSF ChimeraX is next-generation software for the visualization and analysis of molecular structures, density maps, 3D microscopy, and associated data. It addresses challenges in the size, scope, and disparate types of data attendant with cutting-edge experimental methods, while providing advanced options for high-quality rendering (interactive ambient occlusion, reliable molecular surface calculations, etc.) and professional approaches to software design and distribution. This article highlights some specific advances in the areas of visualization and usability, performance, and extensibility. ChimeraX is free for noncommercial use and is available from http://www.rbvi.ucsf.edu/chimerax/ for Windows, Mac, and Linux.
History
DepositionDec 21, 2022Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 10, 2024Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: 5-hydroxytryptamine receptor 3A
B: 5-hydroxytryptamine receptor 3A
C: 5-hydroxytryptamine receptor 3A
D: 5-hydroxytryptamine receptor 3A


Theoretical massNumber of molelcules
Total (without water)242,6724
Polymers242,6724
Non-polymers00
Water00
1


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

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Components

#1: Protein
5-hydroxytryptamine receptor 3A / 5-HT3-A / 5-HT3A / 5-hydroxytryptamine receptor 3 / 5-HT-3 / 5-HT3R / Serotonin receptor 3A / ...5-HT3-A / 5-HT3A / 5-hydroxytryptamine receptor 3 / 5-HT-3 / 5-HT3R / Serotonin receptor 3A / Serotonin-gated ion channel receptor


Mass: 60668.086 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Htr3a, 5ht3, Htr3 / Cell line (production host): HEK / Production host: Homo sapiens (human) / References: UniProt: P23979

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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: Tetrameric 5-HT3aR receptor in Salipro (apo, asymmetric)
Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightValue: 0.220 MDa / Experimental value: NO
Source (natural)Organism: Mus musculus (house mouse)
Source (recombinant)Organism: Homo sapiens (human) / Strain: HEK
Buffer solutionpH: 7.6
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid type: Quantifoil R2/2
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen 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: 1300 nm
Image recordingElectron dose: 55 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

SoftwareName: UCSF ChimeraX / Version: 1.4/v9 / Classification: model building / URL: https://www.rbvi.ucsf.edu/chimerax/ / Os: Windows / Type: package
EM software
IDNameCategory
7ISOLDEmodel fitting
8Cootmodel fitting
10PHENIXmodel refinement
11cryoSPARCinitial Euler assignment
12cryoSPARCfinal Euler assignment
13cryoSPARCclassification
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 384937 / Symmetry type: POINT

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