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- PDB-1j95: KCSA potassium channel with TBA (tetrabutylammonium) and potassium -
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Open data
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Basic information
Entry | Database: PDB / ID: 1j95 | ||||||
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Title | KCSA potassium channel with TBA (tetrabutylammonium) and potassium | ||||||
![]() | VOLTAGE-GATED POTASSIUM CHANNEL | ||||||
![]() | MEMBRANE PROTEIN / METAL TRANSPORT | ||||||
Function / homology | ![]() delayed rectifier potassium channel activity / voltage-gated potassium channel complex / identical protein binding Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ![]() ![]() ![]() | ||||||
![]() | Morais-Cabral, J.H. / MacKinnon, R. / Zhou, M. | ||||||
![]() | ![]() Title: Potassium channel receptor site for the inactivation gate and quaternary amine inhibitors Authors: Zhou, M. / Morais-Cabral, J.H. / Mann, S. / MacKinnon, R. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 84.8 KB | Display | ![]() |
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PDB format | ![]() | 63.6 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 463.3 KB | Display | ![]() |
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Full document | ![]() | 479.2 KB | Display | |
Data in XML | ![]() | 18.1 KB | Display | |
Data in CIF | ![]() | 23 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 1bl8S 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: 13384.792 Da / Num. of mol.: 4 / Fragment: Residues 1-125 / Mutation: L90C Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() #2: Chemical | ChemComp-K / #3: Chemical | ChemComp-TBA / | |
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-Experimental details
-Experiment
Experiment | Method: ![]() |
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Sample preparation
Crystal | Density Matthews: 3.71 Å3/Da / Density % sol: 66.83 % | ||||||||||||||||||||||||||||||||||||||||||||||||
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Crystal grow | Temperature: 293 K / Method: vapor diffusion, sitting drop / pH: 7.5 Details: PEG 400, HEPES, POTASSIUM CHLORIDE, CALCIUM CHLORIDE, DETERGENT LDAO, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K | ||||||||||||||||||||||||||||||||||||||||||||||||
Crystal grow | *PLUS Temperature: 20 ℃ | ||||||||||||||||||||||||||||||||||||||||||||||||
Components of the solutions | *PLUS
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-Data collection
Diffraction | Mean temperature: 100 K |
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Diffraction source | Source: ![]() ![]() ![]() |
Detector | Type: MARRESEARCH / Detector: IMAGE PLATE / Date: Jan 1, 2000 |
Radiation | Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray |
Radiation wavelength | Wavelength: 0.964 Å / Relative weight: 1 |
Reflection | Resolution: 2.8→30 Å / Num. all: 16203 / Num. obs: 12054 / % possible obs: 92.6 % / Observed criterion σ(F): 1.5 / Observed criterion σ(I): 1.5 / Redundancy: 2.1 % / Biso Wilson estimate: 73 Å2 / Rmerge(I) obs: 0.072 / Net I/σ(I): 11.3 |
Reflection shell | Resolution: 2.8→2.93 Å / Redundancy: 2.2 % / Rmerge(I) obs: 0.458 / % possible all: 93.1 |
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Processing
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Refinement | Method to determine structure: ![]() Starting model: PDB ENTRY 1BL8 Resolution: 2.8→30 Å / Isotropic thermal model: isotropic / Cross valid method: THROUGHOUT / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
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Refinement step | Cycle: LAST / Resolution: 2.8→30 Å
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Refine LS restraints |
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Software | *PLUS Name: CNS / Version: 1 / Classification: refinement | |||||||||||||||||||||||||
Refinement | *PLUS Highest resolution: 2.8 Å / Lowest resolution: 30 Å / σ(F): 0 / % reflection Rfree: 10 % | |||||||||||||||||||||||||
Solvent computation | *PLUS | |||||||||||||||||||||||||
Displacement parameters | *PLUS |