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Yorodumi- PDB-9atd: Crystal structure of MERS 3CL protease in complex with a ethylcyc... -
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- Basic information
Basic information
| Entry | Database: PDB / ID: 9atd | |||||||||
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| Title | Crystal structure of MERS 3CL protease in complex with a ethylcyclohexyl 2-pyrrolidone inhibitor (S-enantiomer) inhibitor | |||||||||
|  Components | 3C-like proteinase nsp5 | |||||||||
|  Keywords | HYDROLASE/INHIBITOR / MERS / 3CL protease inhibitors / COVID-19 / viral protein / HYDROLASE-INHIBITOR complex | |||||||||
| Function / homology |  Function and homology information host cell membrane / viral genome replication / methyltransferase activity / SARS coronavirus main proteinase / endonuclease activity / symbiont-mediated degradation of host mRNA / mRNA guanylyltransferase / symbiont-mediated suppression of host ISG15-protein conjugation / G-quadruplex RNA binding / methylation ...host cell membrane / viral genome replication / methyltransferase activity / SARS coronavirus main proteinase / endonuclease activity / symbiont-mediated degradation of host mRNA / mRNA guanylyltransferase / symbiont-mediated suppression of host ISG15-protein conjugation / G-quadruplex RNA binding / methylation / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of IRF3 activity / omega peptidase activity / symbiont-mediated perturbation of host ubiquitin-like protein modification / ubiquitinyl hydrolase 1 / cysteine-type deubiquitinase activity / Hydrolases; Acting on peptide bonds (peptidases); Cysteine endopeptidases / single-stranded RNA binding / regulation of autophagy / host cell perinuclear region of cytoplasm / viral protein processing / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / symbiont-mediated suppression of host gene expression / viral translational frameshifting / symbiont-mediated activation of host autophagy / cysteine-type endopeptidase activity / proteolysis / zinc ion binding / membrane Similarity search - Function | |||||||||
| Biological species |   Middle East respiratory syndrome-related coronavirus | |||||||||
| Method |  X-RAY DIFFRACTION /  SYNCHROTRON /  MOLECULAR REPLACEMENT / Resolution: 1.8 Å | |||||||||
|  Authors | Liu, L. / Lovell, S. / Battaile, K.P. / Dampalla, C.S. / Groutas, W.C. | |||||||||
| Funding support |  United States, 2items 
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|  Citation |  Journal: J.Med.Chem. / Year: 2024 Title: Structure-Guided Design of Potent Coronavirus Inhibitors with a 2-Pyrrolidone Scaffold: Biochemical, Crystallographic, and Virological Studies. Authors: Dampalla, C.S. / Kim, Y. / Zabiegala, A. / Howard, D.J. / Nguyen, H.N. / Madden, T.K. / Thurman, H.A. / Cooper, A. / Liu, L. / Battaile, K.P. / Lovell, S. / Chang, K.O. / Groutas, W.C. | |||||||||
| History | 
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- Structure visualization
Structure visualization
| Structure viewer | Molecule:  Molmil  Jmol/JSmol | 
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- Downloads & links
Downloads & links
- Download
Download
| PDBx/mmCIF format |  9atd.cif.gz | 137.7 KB | Display |  PDBx/mmCIF format | 
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| PDB format |  pdb9atd.ent.gz | Display |  PDB format | |
| PDBx/mmJSON format |  9atd.json.gz | Tree view |  PDBx/mmJSON format | |
| Others |  Other downloads | 
-Validation report
| Summary document |  9atd_validation.pdf.gz | 991.5 KB | Display |  wwPDB validaton report | 
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| Full document |  9atd_full_validation.pdf.gz | 992 KB | Display | |
| Data in XML |  9atd_validation.xml.gz | 14.9 KB | Display | |
| Data in CIF |  9atd_validation.cif.gz | 21.4 KB | Display | |
| Arichive directory |  https://data.pdbj.org/pub/pdb/validation_reports/at/9atd  ftp://data.pdbj.org/pub/pdb/validation_reports/at/9atd | HTTPS FTP | 
-Related structure data
| Related structure data |  9asvC  9aswC  9asyC  9aszC  9at0C  9at1C  9at3C  9at4C  9at5C  9at6C  9at7C  9ataC  9ateC  9atfC  9atgC  9athC  9atiC  9atjC  9atsC  9attC C: citing same article ( | 
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| Similar structure data | Similarity search - Function & homology  F&H Search | 
- Links
Links
- Assembly
Assembly
| Deposited unit |  
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| 1 |  
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| Unit cell | 
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- Components
Components
| #1: Protein | Mass: 34314.242 Da / Num. of mol.: 1 / Fragment: UNP residues 3248-3553 Source method: isolated from a genetically manipulated source Source: (gene. exp.)   Middle East respiratory syndrome-related coronavirus Gene: 1a / Plasmid: pET-28 / Production host:   Escherichia coli BL21(DE3) (bacteria) References: UniProt: K9N638, SARS coronavirus main proteinase | 
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| #2: Chemical | ChemComp-A1AGL / ( Mass: 602.741 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C27H46N4O9S | 
| #3: Chemical | ChemComp-A1AGK / ( Mass: 602.741 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Formula: C27H46N4O9S | 
| #4: Water | ChemComp-HOH / | 
| Has ligand of interest | Y | 
| Has protein modification | Y | 
-Experimental details
-Experiment
| Experiment | Method:  X-RAY DIFFRACTION / Number of used crystals: 1 | 
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- Sample preparation
Sample preparation
| Crystal | Density Matthews: 1.97 Å3/Da / Density % sol: 37.48 % | 
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| Crystal grow | Temperature: 291 K / Method: vapor diffusion, sitting drop / pH: 5.5 Details: 25% w/v PEG3350, 100 mM Bis-Tris, pH 5.5, 200 mM ammonium acetate | 
-Data collection
| Diffraction | Mean temperature: 100 K / Serial crystal experiment: N | 
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| Diffraction source | Source:  SYNCHROTRON / Site:  NSLS-II  / Beamline: 19-ID / Wavelength: 0.9795 Å | 
| Detector | Type: DECTRIS EIGER2 XE 9M / Detector: PIXEL / Date: Oct 5, 2022 | 
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | 
| Radiation wavelength | Wavelength: 0.9795 Å / Relative weight: 1 | 
| Reflection | Resolution: 1.8→49.16 Å / Num. obs: 24796 / % possible obs: 99.9 % / Redundancy: 4.8 % / CC1/2: 0.999 / Rmerge(I) obs: 0.07 / Rpim(I) all: 0.035 / Rrim(I) all: 0.079 / Χ2: 0.96 / Net I/σ(I): 11.7 / Num. measured all: 119312 | 
| Reflection shell | Resolution: 1.8→1.85 Å / % possible obs: 99.9 % / Redundancy: 4.8 % / Rmerge(I) obs: 0.851 / Num. measured all: 8788 / Num. unique obs: 1825 / CC1/2: 0.68 / Rpim(I) all: 0.42 / Rrim(I) all: 0.952 / Χ2: 0.91 / Net I/σ(I) obs: 1.8 | 
- Processing
Processing
| Software | 
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| Refinement | Method to determine structure:  MOLECULAR REPLACEMENT / Resolution: 1.8→47.05 Å / SU ML: 0.19  / Cross valid method: FREE R-VALUE / σ(F): 1.35  / Phase error: 22.38  / Stereochemistry target values: ML 
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| Solvent computation | Shrinkage radii: 0.9 Å / VDW probe radii: 1.1 Å / Solvent model: FLAT BULK SOLVENT MODEL | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 1.8→47.05 Å 
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| Refine LS restraints | 
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| LS refinement shell | 
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| Refinement TLS params. | Method: refined / Refine-ID: X-RAY DIFFRACTION 
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| Refinement TLS group | 
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