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Open data
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Basic information
| Entry | Database: PDB / ID: 1qo4 | ||||||
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| Title | ARABIDOPSIS THALIANA PEROXIDASE A2 AT ROOM TEMPERATURE | ||||||
Components | PEROXIDASE | ||||||
Keywords | OXIDOREDUCTASE / PEROXIDASE | ||||||
| Function / homology | Function and homology informationdefense response to nematode / flower development / peroxidase / lactoperoxidase activity / hydrogen peroxide catabolic process / response to oxidative stress / heme binding / Golgi apparatus / extracellular region / metal ion binding Similarity search - Function | ||||||
| Biological species | ![]() | ||||||
| Method | X-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 3 Å | ||||||
Authors | Henriksen, A. / Gajhede, M. | ||||||
Citation | Journal: Biochemistry / Year: 2001Title: Differential Activity and Structure of Highly Similar Peroxidases. Spectroscopic, Crystallographic, and Enzymatic Analyses of Lignifying Arabidopsis Thaliana Peroxidase A2 and Horseradish Peroxidase A2 Authors: Nielsen, K.L. / Indiani, C. / Henriksen, A. / Feis, A. / Becucci, M. / Gajhede, M. / Smulevich, G. / Welinder, K.G. | ||||||
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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 | 1qo4.cif.gz | 65.3 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb1qo4.ent.gz | 45.4 KB | Display | PDB format |
| PDBx/mmJSON format | 1qo4.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 1qo4_validation.pdf.gz | 757.8 KB | Display | wwPDB validaton report |
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| Full document | 1qo4_full_validation.pdf.gz | 760.6 KB | Display | |
| Data in XML | 1qo4_validation.xml.gz | 12.3 KB | Display | |
| Data in CIF | 1qo4_validation.cif.gz | 16.9 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/qo/1qo4 ftp://data.pdbj.org/pub/pdb/validation_reports/qo/1qo4 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 1pa2S S: Starting model for refinement |
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| Similar structure data |
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Links
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Assembly
| Deposited unit | ![]()
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| 1 |
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| Unit cell |
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Components
| #1: Protein | Mass: 32085.516 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() | ||||||
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| #2: Chemical | ChemComp-HEM / | ||||||
| #3: Chemical | | #4: Water | ChemComp-HOH / | Compound details | MET A 0 INSERTED AS A CLONING ARTIFACT | Has protein modification | Y | |
-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 2.1 Å3/Da / Density % sol: 40 % | ||||||||||||||||||||||||||||||||||||||||||||||||
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| Crystal grow | pH: 6.5 Details: 0.2 M MG(CH3COO)2, 0.1 M CACODYLATE PH 6.5, 20 % PEG8000 | ||||||||||||||||||||||||||||||||||||||||||||||||
| Crystal grow | *PLUS Method: vapor diffusion, hanging drop / Details: Ostergaard, L., (2000) Plant Mol. Biol., 44, 231. | ||||||||||||||||||||||||||||||||||||||||||||||||
| Components of the solutions | *PLUS
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-Data collection
| Diffraction | Mean temperature: 287 K |
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| Diffraction source | Source: ROTATING ANODE / Type: RIGAKU RUH2R / Wavelength: 1.5418 |
| Detector | Type: RIGAKU IMAGE PLATE / Detector: IMAGE PLATE / Date: Aug 15, 1999 |
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 1.5418 Å / Relative weight: 1 |
| Reflection | Resolution: 3→39 Å / Num. obs: 5887 / % possible obs: 97 % / Redundancy: 4.6 % / Biso Wilson estimate: 21.8 Å2 / Rsym value: 0.165 / Net I/σ(I): 8 |
| Reflection shell | Resolution: 3→3.1 Å / Redundancy: 3.6 % / Mean I/σ(I) obs: 5 / Rsym value: 0.295 / % possible all: 97.3 |
| Reflection | *PLUS Lowest resolution: 30 Å / % possible obs: 97.8 % / Num. measured all: 27478 / Rmerge(I) obs: 0.165 |
| Reflection shell | *PLUS Highest resolution: 3 Å / Lowest resolution: 3.11 Å / % possible obs: 97.3 % / Rmerge(I) obs: 0.295 / Mean I/σ(I) obs: 4.5 |
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Processing
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| Refinement | Method to determine structure: MOLECULAR REPLACEMENTStarting model: PDB ENTRY 1PA2 Resolution: 3→30 Å / Rfactor Rfree error: 0.013 / Data cutoff high absF: 70416.12 / Cross valid method: THROUGHOUT / σ(F): 0 Details: A 3SIGMA FO-FC DENSITY APPEARS WITH A CENTER 2.5 ANGSTROM ABOVE THE HEME IRON. A WATER MOLECULE COULD NOT BE FITTED TO THIS DENSITY AS NO POSITIVE 2FO-FC ELECTRON DENSITY IS RETURNED. THE ...Details: A 3SIGMA FO-FC DENSITY APPEARS WITH A CENTER 2.5 ANGSTROM ABOVE THE HEME IRON. A WATER MOLECULE COULD NOT BE FITTED TO THIS DENSITY AS NO POSITIVE 2FO-FC ELECTRON DENSITY IS RETURNED. THE POSITIVE FO-FC DENSITY COULD ORIGINATE FROM A FRACTIONALLY OCCUPIED WATER MOLECULE. A FRACTIONALLY OCCUPIED WATER MOLECULE IS NOT INCLUDED IN THIS POSITION DUE TO THE RELATIVE LOW RESOLUTION OF THE DATA.
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| Solvent computation | Solvent model: FLAT MODEL / Bsol: 10 Å2 / ksol: 0.310099 e/Å3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 15 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refine analyze |
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| Refinement step | Cycle: LAST / Resolution: 3→30 Å
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| Refine LS restraints |
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| LS refinement shell | Resolution: 3→3.19 Å / Rfactor Rfree error: 0.055 / Total num. of bins used: 6
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| Software | *PLUS Name: CNS / Version: 0.5 / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refine LS restraints | *PLUS
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| LS refinement shell | *PLUS Lowest resolution: 3.11 Å / Rfactor Rwork: 0.22 / Rfactor obs: 0.22 |
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