› 7cal

Electron Microscopy
3.2Å resolution

Cryo-EM Structure of the Hyperpolarization-Activated Inwardly Rectifying Potassium Channel KAT1 from Arabidopsis

Released:
DOI: 10.2210/pdb7cal/pdb
PDB entry 7cal coloured by chain, front view.
PDB entry 7cal coloured by chain, side view.
PDB entry 7cal coloured by chain, top view.
Source organism: Arabidopsis thaliana
Primary publication:
Cryo-EM structure of the hyperpolarization-activated inwardly rectifying potassium channel KAT1 from Arabidopsis.
Li S, Yang F, Sun D, Zhang Y, Zhang M, Liu S, Zhou P, Shi C, Zhang L, Tian C
Cell Res 30 1049-1052 (2020)
PMID: 32901112
Related structures: EMD-30334

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
Sequence domains:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-174433 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Potassium channel KAT1 Chains: A, B, C, D
Molecule details ›
Chains: A, B, C, D
Length: 677 amino acids
Theoretical weight: 78.36 KDa
Source organism: Arabidopsis thaliana
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q39128 (Residues: 1-677; Coverage: 100%)
Gene names: At5g46240, KAT1, MPL12.2
Sequence domains:

Ligands and Environments

1 bound ligand:
Ligand 3PE 4 x 3PE
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 3.2Å
Relevant EMDB volumes: EMD-30334
Expression system: Spodoptera frugiperda

Quick links

Citations

3 citation in other articles

Cryo-EM structure reveals a symmetry reduction of the plant outward-rectifier potassium channel SKOR.
Li et al. (2023)
2 more

2 mentions without citation

Structural and Functional Insights into the Role of Guard Cell Ion Channels in Abiotic Stress-Induced Stomatal Closure.
Kashtoh et al. (2021)
1 more