› 1qky

Solution NMR

Solution structure of PI7, a non toxic peptide isolated from the scorpion Pandinus Imperator.

Released:
DOI: 10.2210/pdb1qky/pdb
PDB entry 1qky coloured by chain, ensemble of 14 models, front view.
PDB entry 1qky coloured by chain, ensemble of 14 models, side view.
PDB entry 1qky coloured by chain, ensemble of 14 models, top view.
Source organism: Pandinus imperator
Primary publication:
Pi7, an orphan peptide from the scorpion Pandinus imperator: a 1H-NMR analysis using a nano-NMR Probe.
Delepierre M, Prochnicka-Chalufour A, Boisbouvier J, Possani LD
Biochemistry 38 16756-65 (1999)
PMID: 10606507

Function and Biology Details

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

Structure analysis Details

Assembly composition:
monomeric (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-157694 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Potassium channel toxin alpha-KTx 6.5 Chain: A
Molecule details ›
Chain: A
Length: 38 amino acids
Theoretical weight: 4.3 KDa
Source organism: Pandinus imperator
UniProt:
  • Canonical: P58490 (Residues: 1-38; Coverage: 100%)
Sequence domains: Scorpion short toxin, BmKK2

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Chemical shift assignment: 47%
Refinement method: simulated annealing

Quick links

Citations

4 review citations

Current views on scorpion toxins specific for K+-channels.
Rodríguez de la Vega et al. (2004)
3 more

1 mention without citation

Solution structure of Pi4, a short four-disulfide-bridged scorpion toxin specific of potassium channels.
Guijarro et al. (2003)