+
Open data
-
Basic information
| Entry | Database: PDB / ID: 6s3a | ||||||
|---|---|---|---|---|---|---|---|
| Title | Coxsackie B3 2C protein in complex with S-Fluoxetine | ||||||
Components | 2C protein | ||||||
Keywords | VIRAL PROTEIN / 2C / enterovirus / helicase / ATPase / complex / antiviral / Porzac / fluoxetine / repurposing / coxsackievirus | ||||||
| Function / homology | Function and homology informationsymbiont-mediated perturbation of host transcription / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of RIG-I activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / picornain 2A / symbiont-mediated suppression of host mRNA export from nucleus / symbiont genome entry into host cell via pore formation in plasma membrane / picornain 3C / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane ...symbiont-mediated perturbation of host transcription / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of RIG-I activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MDA-5 activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / picornain 2A / symbiont-mediated suppression of host mRNA export from nucleus / symbiont genome entry into host cell via pore formation in plasma membrane / picornain 3C / T=pseudo3 icosahedral viral capsid / host cell cytoplasmic vesicle membrane / ribonucleoside triphosphate phosphatase activity / nucleoside-triphosphate phosphatase / channel activity / monoatomic ion transmembrane transport / symbiont-mediated suppression of host NF-kappaB cascade / DNA replication / RNA helicase activity / endocytosis involved in viral entry into host cell / symbiont-mediated activation of host autophagy / RNA-directed RNA polymerase / cysteine-type endopeptidase activity / viral RNA genome replication / RNA-directed RNA polymerase activity / DNA-templated transcription / virion attachment to host cell / host cell nucleus / structural molecule activity / proteolysis / RNA binding / zinc ion binding / ATP binding Similarity search - Function | ||||||
| Biological species | ![]() Coxsackievirus B3 | ||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.52 Å | ||||||
Authors | El Kazzi, P. / Papageorgiou, N. / Ferron, F.P. / Bauer, L. / van Kuppeveld, F. / Coutard, B. | ||||||
| Funding support | 1items
| ||||||
Citation | Journal: Sci Adv / Year: 2022Title: Fluoxetine targets an allosteric site in the enterovirus 2C AAA+ ATPase and stabilizes a ring-shaped hexameric complex. Authors: Daniel L Hurdiss / Priscila El Kazzi / Lisa Bauer / Nicolas Papageorgiou / François P Ferron / Tim Donselaar / Arno L W van Vliet / Tatiana M Shamorkina / Joost Snijder / Bruno Canard / ...Authors: Daniel L Hurdiss / Priscila El Kazzi / Lisa Bauer / Nicolas Papageorgiou / François P Ferron / Tim Donselaar / Arno L W van Vliet / Tatiana M Shamorkina / Joost Snijder / Bruno Canard / Etienne Decroly / Andrea Brancale / Tzviya Zeev-Ben-Mordehai / Friedrich Förster / Frank J M van Kuppeveld / Bruno Coutard / ![]() Abstract: Enteroviruses are globally prevalent human pathogens responsible for many diseases. The nonstructural protein 2C is a AAA+ helicase and plays a key role in enterovirus replication. Drug repurposing ...Enteroviruses are globally prevalent human pathogens responsible for many diseases. The nonstructural protein 2C is a AAA+ helicase and plays a key role in enterovirus replication. Drug repurposing screens identified 2C-targeting compounds such as fluoxetine and dibucaine, but how they inhibit 2C is unknown. Here, we present a crystal structure of the soluble and monomeric fragment of coxsackievirus B3 2C protein in complex with ()-fluoxetine (SFX), revealing an allosteric binding site. To study the functional consequences of SFX binding, we engineered an adenosine triphosphatase (ATPase)–competent, hexameric 2C protein. Using this system, we show that SFX, dibucaine, HBB [2-(α-hydroxybenzyl)-benzimidazole], and guanidine hydrochloride inhibit 2C ATPase activity. Moreover, cryo–electron microscopy analysis demonstrated that SFX and dibucaine lock 2C in a defined hexameric state, rationalizing their mode of inhibition. Collectively, these results provide important insights into 2C inhibition and a robust engineering strategy for structural, functional, and drug-screening analysis of 2C proteins. | ||||||
| History |
|
-
Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
|---|
-
Downloads & links
-
Download
| PDBx/mmCIF format | 6s3a.cif.gz | 96.2 KB | Display | PDBx/mmCIF format |
|---|---|---|---|---|
| PDB format | pdb6s3a.ent.gz | 71.7 KB | Display | PDB format |
| PDBx/mmJSON format | 6s3a.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/s3/6s3a ftp://data.pdbj.org/pub/pdb/validation_reports/s3/6s3a | HTTPS FTP |
|---|
-Related structure data
-
Links
-
Assembly
| Deposited unit | ![]()
| ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |
| ||||||||||||
| Unit cell |
|
-
Components
| #1: Protein | Mass: 23763.359 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() Coxsackievirus B3 / Production host: ![]() |
|---|---|
| #2: Chemical | ChemComp-SFX / ( |
| #3: Chemical | ChemComp-ZN / |
| #4: Chemical | ChemComp-CL / |
| #5: Water | ChemComp-HOH / |
| Has ligand of interest | Y |
-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
|---|
-
Sample preparation
| Crystal | Density Matthews: 2.14 Å3/Da / Density % sol: 42.61 % |
|---|---|
| Crystal grow | Temperature: 293 K / Method: vapor diffusion, sitting drop / pH: 7.5 / Details: Mes 0.1M pH 6,5, PEG 5000 27, 2M ammonium sulfate |
-Data collection
| Diffraction | Mean temperature: 100 K / Serial crystal experiment: Y |
|---|---|
| Diffraction source | Source: SYNCHROTRON / Site: ESRF / Beamline: BM30A / Wavelength: 0.976251 Å |
| Detector | Type: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: Sep 10, 2018 |
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 0.976251 Å / Relative weight: 1 |
| Reflection | Resolution: 1.52→44.14 Å / Num. obs: 33298 / % possible obs: 98.18 % / Redundancy: 5.5 % / Rmerge(I) obs: 0.07759 / Rpim(I) all: 0.0326 / Rrim(I) all: 0.07759 / Net I/σ(I): 13.69 |
| Reflection shell | Resolution: 1.52→1.57 Å / Redundancy: 5.4 % / Rmerge(I) obs: 0.8 / Mean I/σ(I) obs: 1.89 / Num. unique obs: 3154 / Rpim(I) all: 0.39 / Rrim(I) all: 0.9 / % possible all: 94.87 |
| Serial crystallography sample delivery | Method: fixed target |
-
Processing
| Software |
| |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Refinement | Method to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.52→44.14 Å / Cross valid method: FREE R-VALUE
| |||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 1.52→44.14 Å
|
Movie
Controller
About Yorodumi





Coxsackievirus B3
X-RAY DIFFRACTION
Citation













PDBj







