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Yorodumi- PDB-8ai2: Crystal structure of radical SAM epimerase EpeE from Bacillus sub... -
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Open data
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Basic information
| Entry | Database: PDB / ID: 8ai2 | |||||||||
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| Title | Crystal structure of radical SAM epimerase EpeE from Bacillus subtilis with [4Fe-4S] clusters, S-adenosyl-L-homocysteine and RiPP peptide 5 bound | |||||||||
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Keywords | METAL BINDING PROTEIN / radical SAM / metalloenzyme / iron-sulfur / RiPP | |||||||||
| Function / homology | Function and homology informationcatalytic activity / 4 iron, 4 sulfur cluster binding / metal ion binding Similarity search - Function | |||||||||
| Biological species | ![]() | |||||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.393 Å | |||||||||
Authors | Polsinelli, I. / Fyfe, C.D. / Legrand, P. / Kubiak, X. / Chavas, L.M.G. / Berteau, O. / Benjdia, A. | |||||||||
| Funding support | France, European Union, 2items
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Citation | Journal: Nat.Chem.Biol. / Year: 2024Title: Structural and mechanistic basis for RiPP epimerization by a radical SAM enzyme. Authors: Kubiak, X. / Polsinelli, I. / Chavas, L.M.G. / Fyfe, C.D. / Guillot, A. / Fradale, L. / Brewee, C. / Grimaldi, S. / Gerbaud, G. / Thureau, A. / Legrand, P. / Berteau, O. / Benjdia, A. #1: Journal: Nat Chem / Year: 2017Title: Post-translational modification of ribosomally synthesized peptides by a radical SAM epimerase in Bacillus subtilis. Authors: Benjdia, A. / Guillot, A. / Ruffie, P. / Leprince, J. / Berteau, O. | |||||||||
| History |
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8ai2.cif.gz | 302.1 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8ai2.ent.gz | 244.6 KB | Display | PDB format |
| PDBx/mmJSON format | 8ai2.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8ai2_validation.pdf.gz | 2.9 MB | Display | wwPDB validaton report |
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| Full document | 8ai2_full_validation.pdf.gz | 2.9 MB | Display | |
| Data in XML | 8ai2_validation.xml.gz | 28.1 KB | Display | |
| Data in CIF | 8ai2_validation.cif.gz | 39.8 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/ai/8ai2 ftp://data.pdbj.org/pub/pdb/validation_reports/ai/8ai2 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 8ai1C ![]() 8ai3C ![]() 8ai4C ![]() 8ai5C ![]() 8ai6C C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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| 1 | ![]()
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| 2 | ![]()
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| Unit cell |
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Components
-Protein / Protein/peptide , 2 types, 4 molecules ABCD
| #1: Protein | Mass: 39952.445 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() #2: Protein/peptide | Mass: 1422.693 Da / Num. of mol.: 2 / Source method: obtained synthetically / Source: (synth.) ![]() |
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-Non-polymers , 5 types, 243 molecules 








| #3: Chemical | ChemComp-SF4 / #4: Chemical | #5: Chemical | ChemComp-EDO / #6: Chemical | ChemComp-PEG / #7: Water | ChemComp-HOH / | |
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-Details
| Has ligand of interest | Y |
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-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 2.82 Å3/Da / Density % sol: 56.37 % |
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| Crystal grow | Temperature: 293 K / Method: vapor diffusion, hanging drop / pH: 8.5 / Details: 14% (w/v) PEG 1000, Tris 0.1 M |
-Data collection
| Diffraction | Mean temperature: 100 K / Serial crystal experiment: N |
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| Diffraction source | Source: SYNCHROTRON / Site: SOLEIL / Beamline: PROXIMA 1 / Wavelength: 0.97857 Å |
| Detector | Type: DECTRIS EIGER X 16M / Detector: PIXEL / Date: Jul 15, 2021 / Details: KB Mirrors |
| Radiation | Monochromator: channel-cut Si(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 0.97857 Å / Relative weight: 1 |
| Reflection | Resolution: 2.39→46.19 Å / Num. obs: 571609 / % possible obs: 99.9 % / Redundancy: 15.2 % / CC1/2: 0.999 / Rmerge(I) obs: 0.118 / Rpim(I) all: 0.031 / Rrim(I) all: 0.122 / Net I/σ(I): 14.8 |
| Reflection shell | Resolution: 2.39→2.48 Å / Rmerge(I) obs: 1.411 / Mean I/σ(I) obs: 1.9 / Num. unique obs: 60066 / CC1/2: 0.84 / Rpim(I) all: 0.366 / Rrim(I) all: 1.458 |
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Processing
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| Refinement | Method to determine structure: MOLECULAR REPLACEMENTStarting model: Fe-SAD Exprimental model Resolution: 2.393→46.19 Å / Cor.coef. Fo:Fc: 0.955 / Cor.coef. Fo:Fc free: 0.941 / SU R Cruickshank DPI: 0.285 / Cross valid method: THROUGHOUT / SU R Blow DPI: 0.293 / SU Rfree Blow DPI: 0.209 / SU Rfree Cruickshank DPI: 0.209
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| Displacement parameters | Biso mean: 63.94 Å2
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| Refine analyze | Luzzati coordinate error obs: 0.28 Å | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 2.393→46.19 Å
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| Refine LS restraints |
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| LS refinement shell | Resolution: 2.393→2.41 Å
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| Refinement TLS params. | Refine-ID: X-RAY DIFFRACTION
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| Refinement TLS group |
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X-RAY DIFFRACTION
France, European Union, 2items
Citation




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