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Open data
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Basic information
| Entry | Database: PDB / ID: 1p8h | ||||||
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| Title | BACTERIORHODOPSIN M1 INTERMEDIATE PRODUCED AT ROOM TEMPERATURE | ||||||
 Components | Bacteriorhodopsin | ||||||
 Keywords | PROTON TRANSPORT / ION PUMP / MEMBRANE PROTEIN / RETINAL PROTEIN / LIPIDS / PHOTORECEPTOR / HALOARCHAEA / 7-TRANSMEMBRANE / SERPENTINE / MEROHEDRAL TWINNING | ||||||
| Function / homology |  Function and homology informationlight-driven active monoatomic ion transmembrane transporter activity / monoatomic ion channel activity / photoreceptor activity / phototransduction / proton transmembrane transport / plasma membrane Similarity search - Function  | ||||||
| Biological species |  Halobacterium salinarum (Halophile) | ||||||
| Method |  X-RAY DIFFRACTION /  SYNCHROTRON /  MOLECULAR REPLACEMENT / Resolution: 1.52 Å  | ||||||
 Authors | Lanyi, J.K. | ||||||
 Citation |  Journal: J.Mol.Biol. / Year: 2003Title: Crystallographic Structures of the M and N Intermediates of Bacteriorhodopsin: Assembly of a Hydrogen-Bonded Chain of Water Molecules between Asp-96 and the Retinal Schiff Base Authors: Schobert, B. / Brown, L.S. / Lanyi, J.K.  | ||||||
| History | 
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| Remark 300 | BIOMOLECULE 1 THIS ENTRY IS MADE UP OF TWO MODELS WHICH REPRESENT TWO CONFORMATIONS OF THE WILD- ... BIOMOLECULE 1 THIS ENTRY IS MADE UP OF TWO MODELS WHICH REPRESENT TWO CONFORMATIONS OF THE WILD-TYPE PROTEIN. MODEL 1 IS THE M1 INTERMEDIATE WITH OCCUPANCY OF 0.42 WHILE MODEL 2 IS THE NON-ILLUMINATED BACTERIORHODOPSIN (BR STATE) WITH OCCUPANCY OF 0.58. | 
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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 |  1p8h.cif.gz | 117.9 KB | Display |  PDBx/mmCIF format | 
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| PDB format |  pdb1p8h.ent.gz | 90 KB | Display |  PDB format | 
| PDBx/mmJSON format |  1p8h.json.gz | Tree view |  PDBx/mmJSON format | |
| Others |  Other downloads | 
-Validation report
| Summary document |  1p8h_validation.pdf.gz | 880.4 KB | Display |  wwPDB validaton report | 
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| Full document |  1p8h_full_validation.pdf.gz | 924 KB | Display | |
| Data in XML |  1p8h_validation.xml.gz | 24.2 KB | Display | |
| Data in CIF |  1p8h_validation.cif.gz | 26.7 KB | Display | |
| Arichive directory |  https://data.pdbj.org/pub/pdb/validation_reports/p8/1p8h ftp://data.pdbj.org/pub/pdb/validation_reports/p8/1p8h | HTTPS FTP  | 
-Related structure data
| Related structure data | ![]() 1p8iC ![]() 1p8uC ![]() 1m0lS S: Starting model for refinement C: citing same article (  | 
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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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| Number of models | 2 | 
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Components
| #1: Protein |   Mass: 26929.500 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.)  Halobacterium salinarum (Halophile) / Cellular location: PLASMA MEMBRANE / Gene: BOP / Plasmid: PRN2367 / Cellular location (production host): CYTOPLASM / Production host:  Halobacterium salinarum (Halophile) / References: UniProt: P02945 | ||||||
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| #2: Chemical |  ChemComp-RET /  | ||||||
| #3: Chemical | ChemComp-LI1 / #4: Chemical |  ChemComp-SQU /  | #5: Water |  ChemComp-HOH /  | 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: 1.78 Å3/Da / Density % sol: 30.8 % | ||||||||||||||||||||
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| Crystal grow | Temperature: 295 K / Method: cubic lipid phase / pH: 5.6  Details: mono-olein, potassium phosphate, pH 5.60, CUBIC LIPID PHASE, temperature 295K  | ||||||||||||||||||||
| Crystal grow | *PLUS pH: 5.6  / Method: unknown / Details: Gabriele, R., (1998) J. Struct. Biol., 121, 82. | ||||||||||||||||||||
| 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:  ALS   / Beamline: 8.2.1 / Wavelength: 0.979  / Wavelength: 0.979 Å | 
| Detector | Type: ADSC QUANTUM / Detector: CCD / Date: Jun 27, 2002 | 
| Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray | 
| Radiation wavelength | Wavelength: 0.979 Å / Relative weight: 1 | 
| Reflection | Resolution: 1.52→25 Å / Num. all: 36506 / Num. obs: 36506 / % possible obs: 92.1 % / Observed criterion σ(I): -3 / Rmerge(I) obs: 0.043 / Net I/σ(I): 41.5 | 
| Reflection shell | Resolution: 1.52→1.56 Å / Rmerge(I) obs: 0.62 / Mean I/σ(I) obs: 3.7 / % possible all: 80.7 | 
| Reflection | *PLUS Highest resolution: 1.52 Å / Lowest resolution: 25 Å / Num. measured all: 646932  | 
| Reflection shell | *PLUS % possible obs: 80.7 % / Rmerge(I) obs: 0.62  / Mean I/σ(I) obs: 3.7  | 
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Processing
| Software | 
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| Refinement | Method to determine structure:  MOLECULAR REPLACEMENTStarting model: PDB ENTRY 1M0L Resolution: 1.52→25 Å / Num. parameters: 8321 / Num. restraintsaints: 19854 / Cross valid method: FREE R / σ(F): 0 / Stereochemistry target values: ENGH AND HUBER 
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| Refine analyze | Num. disordered residues: 233 / Occupancy sum hydrogen: 0 / Occupancy sum non hydrogen: 2073.79 | |||||||||||||||||||||
| Refinement step | Cycle: LAST / Resolution: 1.52→25 Å
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| Refine LS restraints | 
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| Software | *PLUS Name: SHELXL / Version: 97  / Classification: refinement | |||||||||||||||||||||
| Refinement | *PLUS Lowest resolution: 25 Å / % reflection Rfree: 5 % / Rfactor all: 0.172  / Rfactor Rfree: 0.207  / Rfactor Rwork: 0.172  | |||||||||||||||||||||
| Solvent computation | *PLUS  | |||||||||||||||||||||
| Displacement parameters | *PLUS  | |||||||||||||||||||||
| Refine LS restraints | *PLUS 
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| LS refinement shell | *PLUS Highest resolution: 1.52 Å / Lowest resolution: 1.56 Å / Rfactor Rfree: 0.19  / Rfactor Rwork: 0.155  | 
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Halobacterium salinarum (Halophile)
X-RAY DIFFRACTION
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