+Open data
-Basic information
Entry | Database: PDB / ID: 2por | ||||||
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Title | STRUCTURE OF PORIN REFINED AT 1.8 ANGSTROMS RESOLUTION | ||||||
Components | PORIN | ||||||
Keywords | INTEGRAL MEMBRANE PROTEIN PORIN | ||||||
Function / homology | Function and homology information porin activity / pore complex / monoatomic ion transport / cell outer membrane Similarity search - Function | ||||||
Biological species | Rhodobacter capsulatus (bacteria) | ||||||
Method | X-RAY DIFFRACTION / Resolution: 1.8 Å | ||||||
Authors | Weiss, M.S. / Schulz, G.E. | ||||||
Citation | Journal: J.Mol.Biol. / Year: 1992 Title: Structure of porin refined at 1.8 A resolution. Authors: Weiss, M.S. / Schulz, G.E. #1: Journal: Science / Year: 1991 Title: Molecular Architecture and Electrostatic Properties of a Bacterial Porin Authors: Weiss, M.S. / Abele, U. / Weckesser, J. / Welte, W. / Schiltz, E. / Schulz, G.E. #2: Journal: Eur.J.Biochem. / Year: 1991 Title: Primary Structure of Porin from Rhodobacter Capsulatus Authors: Schiltz, E. / Kreusch, A. / Nestel, U. / Schulz, G.E. #3: Journal: FEBS Lett. / Year: 1991 Title: The Structure of Porin from Rhodobacter Capsulatus at 1.8 Angstroms Resolution Authors: Weiss, M.S. / Kreusch, A. / Schiltz, E. / Nestel, U. / Welte, W. / Weckesser, J. / Schulz, G.E. #4: Journal: J.Mol.Biol. / Year: 1991 Title: Crystals of an Integral Membrane Protein Diffracting to 1.8 Angstroms Resolution Authors: Kreusch, A. / Weiss, M.S. / Welte, W. / Weckesser, J. / Schulz, G.E. #5: Journal: FEBS Lett. / Year: 1990 Title: The Three-Dimensional Structure of Porin from Rhodobacter Capsulatus at 3 Angstroms Resolution Authors: Weiss, M.S. / Wacker, T. / Weckesser, J. / Welte, W. / Schulz, G.E. #6: Journal: FEBS Lett. / Year: 1989 Title: The Structure of Porin from Rhodobacter Capsulatus at 0.6 Nm Resolution Authors: Weiss, M.S. / Wacker, T. / Nestel, U. / Woitzik, D. / Weckesser, J. / Kreutz, W. / Welte, W. / Schulz, G.E. #7: Journal: FEBS Lett. / Year: 1989 Title: Crystallization and Preliminary X-Ray Analysis of Porin from Rhodobacter Capsulatus Authors: Nestel, U. / Wacker, T. / Woitzik, D. / Weckesser, J. / Kreutz, W. / Welte, W. | ||||||
History |
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Remark 700 | SHEET THE SHEET PRESENTED AS *S1* ON SHEET RECORDS BELOW IS ACTUALLY A SIXTEEN-STRANDED BETA-BARREL. ...SHEET THE SHEET PRESENTED AS *S1* ON SHEET RECORDS BELOW IS ACTUALLY A SIXTEEN-STRANDED BETA-BARREL. THIS IS REPRESENTED AS A SEVENTEEN-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. |
-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 2por.cif.gz | 78.8 KB | Display | PDBx/mmCIF format |
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PDB format | pdb2por.ent.gz | 58.6 KB | Display | PDB format |
PDBx/mmJSON format | 2por.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/po/2por ftp://data.pdbj.org/pub/pdb/validation_reports/po/2por | HTTPS FTP |
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-Related structure data
Similar structure data |
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-Links
-Assembly
Deposited unit |
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1 |
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Unit cell |
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Atom site foot note | 1: THE SIDECHAIN CG, SD, AND CE ATOMS OF RESIDUE MET 13 AND THE SIDECHAIN OF RESIDUE SER 50 HAVE BEEN MODELED WITH TWO ALTERNATE CONFORMATIONS. 2: THE CG1 AND CG2 ATOMS OF RESIDUE VAL 152 HAVE BEEN MODELED WITH THREE ALTERNATE CONFORMATIONS. 3: RESIDUE 545 HAS NOT BEEN UNAMBIGUOUSLY IDENTIFIED. IT HAS BEEN MODELED AS A DETERGENT N-OCTYLTETRAOXYETHYLENE. 4: THIRTY FOUR DETERGENT FRAGMENTS HAVE BEEN MODELED AS WATERS (SEE REMARK 5) | ||||||||
Components on special symmetry positions |
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-Components
#1: Protein | Mass: 31555.424 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Rhodobacter capsulatus (bacteria) / References: UniProt: P31243 | ||||||
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#2: Chemical | #3: Chemical | ChemComp-C8E / ( #4: Water | ChemComp-HOH / | Nonpolymer details | THIRTY FOUR DETERGENT FRAGMENTS HAVE BEEN MODELED AS WATERS | |
-Experimental details
-Experiment
Experiment | Method: X-RAY DIFFRACTION |
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-Sample preparation
Crystal | Density Matthews: 3.8 Å3/Da / Density % sol: 67.61 % | ||||||||||||||||||||||||||||||||||||
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Crystal grow | *PLUS pH: 7.2 / Method: unknown | ||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Reflection | *PLUS Highest resolution: 1.8 Å / Lowest resolution: 20 Å / Num. obs: 42823 / % possible obs: 98 % / Rmerge(I) obs: 0.067 |
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-Processing
Software | Name: X-PLOR / Classification: refinement | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Refinement | Resolution: 1.8→10 Å Details: THE CRYSTALS HAVE FORM *B* AS DESCRIBED IN THE *JRNL* REFERENCE. RESIDUE 545 HAS NOT BEEN UNAMBIGUOUSLY IDENTIFIED. IT HAS BEEN MODELED AS A DETERGENT N-OCTYLTETRAOXYETHYLENE
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Refinement step | Cycle: LAST / Resolution: 1.8→10 Å
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Refine LS restraints |
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Refinement | *PLUS Highest resolution: 1.8 Å / Lowest resolution: 10 Å / Num. reflection obs: 42851 / Rfactor obs: 0.186 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Solvent computation | *PLUS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displacement parameters | *PLUS Biso mean: 32 Å2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Refine LS restraints | *PLUS
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