› 3jxo

X-ray diffraction
1.55Å resolution

Crystal Structure of an Octomeric Two-Subunit TrkA K+ Channel Ring Gating Assembly, TM1088A:TM1088B, from Thermotoga maritima

Released:
DOI: 10.2210/pdb3jxo/pdb
PDB entry 3jxo coloured by chain, front view.
PDB entry 3jxo coloured by chain, side view.
PDB entry 3jxo coloured by chain, top view.
Source organism: Thermotoga sp. RQ2
Entry authors: Deller MC, Johnson HA, Miller M, Spraggon G, Wilson IA, Lesley SA, Joint Center for Structural Genomics (JCSG)

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assemblies composition:
homo dimer (preferred)
homo tetramer
Assembly name:
PDBe Complex ID:
PDB-CPX-101254 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Trk system potassium uptake protein TrkA Chains: A, B
Molecule details ›
Chains: A, B
Length: 86 amino acids
Theoretical weight: 9.36 KDa
Source organism: Thermotoga sp. RQ2
Expression system: Escherichia coli
UniProt:
  • Canonical: A0A0F6AN26 (Residues: 140-218; Coverage: 36%)
Gene name: TRQ2_1728
Sequence domains: TrkA-C domain
Structure domains: Regulator of K+ conductance, C-terminal domain

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.3
Spacegroup: C2221
Unit cell:
a: 62.114Å b: 64.398Å c: 97Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.159 0.158 0.187
Expression system: Escherichia coli

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