8JEC

plant potassium channel SKOR mutant - L271P/D312N

• PDB DOI: https://doi.org/10.2210/pdb8JEC/pdb
• EM Map EMD-36185: EMDB EMDataResource

• Classification: PLANT PROTEIN
• Organism(s): Arabidopsis thaliana
• Expression System: Spodoptera frugiperda
• Mutation(s): Yes 
• Membrane Protein: Yes  PDBTMMemProtMD


• Deposited: 2023-05-15 Released: 2023-08-30 
• Deposition Author(s): Liu, S., Li, S., Tian, C.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.10 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Cryo-EM structure reveals a symmetry reduction of the plant outward-rectifier potassium channel SKOR.

Li, S., Wang, Y., Wang, C., Zhang, Y., Sun, D., Zhou, P., Tian, C., Liu, S.

(2023) Cell Discov 9: 67-67

• PubMed: 37391403 
• DOI: https://doi.org/10.1038/s41421-023-00572-w
• Primary Citation of Related Structures:  
  8JEC, 8JET, 8JEU

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Organizational Affiliation: 

Department of Endocrinology, Institute of Endocrine and Metabolic Diseases, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Joint Center for Biological Analytical Chemistry, Anhui Engineering Laboratory of Peptide Drug, Anhui Laboratory of Advanced Photonic Science and Technology, University of Science and Technology of China, Hefei, Anhui, China.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 375.98 kDa 
• Atom Count: 19,680 
• Modelled Residue Count: 2,632 
• Deposited Residue Count: 3,312 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Potassium channel SKOR	A, B, C, D	828	Arabidopsis thaliana	Mutation(s): 2  Gene Names: SKOR, At3g02850, F13E7.21 Membrane Entity: Yes
UniProt
Find proteins for Q9M8S6 (Arabidopsis thaliana) Explore Q9M8S6  Go to UniProtKB:  Q9M8S6

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.10 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-08-30 
Deposition Author(s): Liu, S., Li, S., Tian, C.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	21825703
National Natural Science Foundation of China (NSFC)	China	32000854

Revision History  

• Version 1.0: 2023-08-30
  Type: Initial release