+Open data
-Basic information
Entry | Database: PDB / ID: 8jec | |||||||||
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Title | plant potassium channel SKOR mutant - L271P/D312N | |||||||||
Components | Potassium channel SKOR | |||||||||
Keywords | PLANT PROTEIN / voltage-gated potassium channel / outward-rectifier / symmetry reduction | |||||||||
Function / homology | Function and homology information potassium ion homeostasis / outward rectifier potassium channel activity / monoatomic ion channel complex / potassium ion transport Similarity search - Function | |||||||||
Biological species | Arabidopsis thaliana (thale cress) | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å | |||||||||
Authors | Liu, S. / Li, S. / Tian, C. | |||||||||
Funding support | China, 2items
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Citation | Journal: Cell Discov / Year: 2023 Title: Cryo-EM structure reveals a symmetry reduction of the plant outward-rectifier potassium channel SKOR. Authors: Siyu Li / Yuanxia Wang / Chenyang Wang / Yong Zhang / Demeng Sun / Peng Zhou / Changlin Tian / Sanling Liu / | |||||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 8jec.cif.gz | 607.5 KB | Display | PDBx/mmCIF format |
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PDB format | pdb8jec.ent.gz | 396.7 KB | Display | PDB format |
PDBx/mmJSON format | 8jec.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/je/8jec ftp://data.pdbj.org/pub/pdb/validation_reports/je/8jec | HTTPS FTP |
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-Related structure data
Related structure data | 36185MC 8jetC 8jeuC M: map data used to model this data C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
-Assembly
Deposited unit |
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1 |
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-Components
#1: Protein | Mass: 93994.039 Da / Num. of mol.: 4 / Mutation: L271P,D312N Source method: isolated from a genetically manipulated source Source: (gene. exp.) Arabidopsis thaliana (thale cress) / Gene: SKOR, At3g02850, F13E7.21 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q9M8S6 |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-Sample preparation
Component | Name: Tetrameric comlplex / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
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Source (natural) | Organism: Arabidopsis thaliana (thale cress) |
Source (recombinant) | Organism: Spodoptera frugiperda (fall armyworm) |
Buffer solution | pH: 8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy imaging
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
Electron lens | Mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
Image recording | Electron dose: 56 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
-Processing
Software |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 97194 / Symmetry type: POINT | ||||||||||||||||||||||||
Refinement | Cross valid method: NONE Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
Displacement parameters | Biso mean: 136.96 Å2 | ||||||||||||||||||||||||
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