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Yorodumi- PDB-1mxt: Atomic resolution structure of Cholesterol oxidase (Streptomyces ... -
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Basic information
| Entry | Database: PDB / ID: 1mxt | ||||||
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| Title | Atomic resolution structure of Cholesterol oxidase (Streptomyces sp. SA-COO) | ||||||
Components | CHOLESTEROL OXIDASE | ||||||
Keywords | OXIDOREDUCTASE / FLAVOENZYME / STEROID METABOLISM / ATOMIC RESOLUTION | ||||||
| Function / homology | Function and homology informationcholesterol oxidase / cholesterol oxidase activity / steroid Delta-isomerase / steroid Delta-isomerase activity / cholesterol catabolic process / flavin adenine dinucleotide binding / extracellular region Similarity search - Function | ||||||
| Biological species | Streptomyces sp. (bacteria) | ||||||
| Method | X-RAY DIFFRACTION / SYNCHROTRON / AB INITIO PHASING / Resolution: 0.95 Å | ||||||
Authors | Vrielink, A. / Lario, P.I. | ||||||
Citation | Journal: J.Mol.Biol. / Year: 2003Title: Sub-atomic resolution crystal structure of cholesterol oxidase: What atomic resolution crystallography reveals about enzyme mechanism and the role of FAD cofactor in redox activity Authors: Lario, P.I. / Sampson, N. / Vrielink, A. #1: Journal: Nat.Chem.Biol. / Year: 2006Title: Atomic resolution crystallography reveals how changes in pH shape the protein microenvironment Authors: Lyubimov, A.Y. / Lario, P.I. / Moustafa, I. / Vrielink, A. | ||||||
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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 | 1mxt.cif.gz | 342.3 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb1mxt.ent.gz | 279.6 KB | Display | PDB format |
| PDBx/mmJSON format | 1mxt.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 1mxt_validation.pdf.gz | 474.3 KB | Display | wwPDB validaton report |
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| Full document | 1mxt_full_validation.pdf.gz | 486.2 KB | Display | |
| Data in XML | 1mxt_validation.xml.gz | 13.7 KB | Display | |
| Data in CIF | 1mxt_validation.cif.gz | 24.6 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/mx/1mxt ftp://data.pdbj.org/pub/pdb/validation_reports/mx/1mxt | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 1b4vS 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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| Unit cell |
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Components
| #1: Protein | Mass: 54969.676 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: FAD COFACTOR NON-COVALENTLY BOUND TO THE ENZYME / Source: (gene. exp.) Streptomyces sp. (bacteria) / Gene: CHOA / Plasmid: PCO202 / Production host: ![]() |
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| #2: Chemical | ChemComp-SO4 / |
| #3: Chemical | ChemComp-FAE / |
| #4: Chemical | ChemComp-OXY / |
| #5: Water | ChemComp-HOH / |
-Experimental details
-Experiment
| Experiment | Method: X-RAY DIFFRACTION / Number of used crystals: 1 |
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Sample preparation
| Crystal | Density Matthews: 1.7 Å3/Da / Density % sol: 40.39 % | ||||||||||||||||||||||||||||||||||||
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| Crystal grow | Temperature: 290 K / Method: vapor diffusion, hanging drop / pH: 5 Details: PEG 8000, manganese sulfate, cacodylate, pH 5.0, VAPOR DIFFUSION, HANGING DROP, temperature 290K | ||||||||||||||||||||||||||||||||||||
| Crystal grow | *PLUS Temperature: 17 ℃ / pH: 7 / Details: Yue, Q.K., (1999) Biochemistry, 38, 4277. | ||||||||||||||||||||||||||||||||||||
| Components of the solutions | *PLUS
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-Data collection
| Diffraction | Mean temperature: 100 K |
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| Diffraction source | Source: SYNCHROTRON / Site: NSLS / Beamline: X8C / Wavelength: 0.979 / Wavelength: 0.979 Å |
| Detector | Type: ADSC QUANTUM 4 / Detector: CCD / Date: Apr 23, 1999 |
| Radiation | Monochromator: CRYSTALS SI(111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
| Radiation wavelength | Wavelength: 0.979 Å / Relative weight: 1 |
| Reflection | Resolution: 0.95→28 Å / Num. obs: 266037 / % possible obs: 94.3 % / Redundancy: 3.9 % / Rmerge(I) obs: 0.058 / Net I/σ(I): 11.1 |
| Reflection shell | Resolution: 0.95→0.97 Å / Redundancy: 3.2 % / Rmerge(I) obs: 0.56 / Mean I/σ(I) obs: 1.5 / % possible all: 89.3 |
| Reflection | *PLUS Highest resolution: 0.95 Å / Lowest resolution: 28.2 Å / % possible obs: 94.1 % / Num. measured all: 1089496 / Rmerge(I) obs: 0.051 |
| Reflection shell | *PLUS % possible obs: 88 % |
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Processing
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| Refinement | Method to determine structure: AB INITIO PHASING Starting model: 1B4V Resolution: 0.95→28 Å / Num. parameters: 45239 / Num. restraintsaints: 59298 / Cross valid method: FREE R / σ(F): 0 / Stereochemistry target values: ENGH AND HUBER Details: THE FOLLOWING ARE RESIDUES THAT WERE NOT LOCATED IN THE EXPERIMENT: ASP A 6, ASN A 7, GLY A 8, THR A 507 (only N was located), ALA A 508, SER A 509. SOME VERY MOBILE SIDE CHAINS WERE MODELED ...Details: THE FOLLOWING ARE RESIDUES THAT WERE NOT LOCATED IN THE EXPERIMENT: ASP A 6, ASN A 7, GLY A 8, THR A 507 (only N was located), ALA A 508, SER A 509. SOME VERY MOBILE SIDE CHAINS WERE MODELED AT EITHER 50% OR were not modelled. THE following atoms were not modelled: RES 146 NE->END is missing.; RES 183 CE->END is missing.; RES 436 CG->END is missing; PARTIALLY OCCUPIED SIDE CHAIN ATOMS MODELED AT 50% FOR THE FOLLOWING: RES 73 ATOMS CD OE1 OE2; RES 87 ATOMS CD 1HD 2HD NE HE CZ NH1 1HH1 2HH1 NH2 1HH2 2HH2; RES 127 ATOMS CG 1HG 2HG CE 1HE 2HE NZ 1HZ 2HZ 3HZ; RES 156 ATOMS CD 1HD 2HD NE HE CZ NH1 1HH1 2HH1 NH2 1HH2 2HH2; RES 163 ATOMS CG 1HG 2HG CD 1HD 2HD CE 1HE 2HE NZ 1HZ 2HZ 3HZ; RES 183 ATOMS CG 1HG 2HG CD 1HD 2HD; RES 241 ATOMS CE 1HE 2HE NZ 1HZ 2HZ 3HZ; RES 273 ATOMS CG 1HG 2HG CD 1HD 2HD CE 1HE 2HE NZ 1HZ 2HZ 3HZ; RES 365 ATOMS CG 1HG 2HG SD CE 1HE 2HE 3HE; RES 396 ATOMS CZ NH1 1HH1 2HH1 NH2 1HH2 2HH2; RES 398 ATOMS CE 1HE 2HE NZ 1HZ 2HZ 3HZ; RES 435 ATOMS CB HB OG1 CG2 1HG2 2HG2 3HG2; RES 436 ATOMS CB 1HB 2HB 3HB C; RES 468 ATOMS NZ 1HZ 2HZ 3HZ;
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| Refine analyze | Num. disordered residues: 82 / Occupancy sum hydrogen: 3697.86 / Occupancy sum non hydrogen: 4440.8 | |||||||||||||||||||||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 0.95→28 Å
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| Refine LS restraints |
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| Software | *PLUS Name: SHELXL / Version: 97 / Classification: refinement | |||||||||||||||||||||||||||||||||
| Refinement | *PLUS Lowest resolution: 28.2 Å / Num. reflection obs: 250371 / Rfactor Rfree: 0.132 / Rfactor Rwork: 0.11 | |||||||||||||||||||||||||||||||||
| Solvent computation | *PLUS | |||||||||||||||||||||||||||||||||
| Displacement parameters | *PLUS |
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Streptomyces sp. (bacteria)
X-RAY DIFFRACTION
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