Potassium in PDB 2asc: Scorpion Toxin Lqh-Alpha-It

The structure of Scorpion Toxin Lqh-Alpha-It, PDB code: 2asc was solved by R.Kahn, I.Karbat, M.Gurevitz, F.Frolow, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	40.00 / 1.10
Space group	F 4 3 2
Cell size a, b, c (Å), α, β, γ (°)	129.714, 129.714, 129.714, 90.00, 90.00, 90.00
R / Rfree (%)	13 / 13.8

The structure of Scorpion Toxin Lqh-Alpha-It also contains other interesting chemical elements:

Chlorine

(Cl)

3 atoms

The binding sites of Potassium atom in the Scorpion Toxin Lqh-Alpha-It (pdb code 2asc). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total only one binding site of Potassium was determined in the Scorpion Toxin Lqh-Alpha-It, PDB code: 2asc:

Potassium binding site 1 out of 1 in the Scorpion Toxin Lqh-Alpha-It


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Scorpion Toxin Lqh-Alpha-It within 5.0Å range: probe atom residue distance (Å) B Occ A:K2001 b:24.4 occ:0.50 O A:GLU16 2.7 11.2 1.0 OH A:TYR22 2.7 13.2 1.0 CZ A:TYR22 3.5 11.2 1.0 CE2 A:TYR22 3.6 11.6 1.0 N A:GLU16 3.6 10.5 1.0 C A:GLU16 3.7 10.8 1.0 CB A:TYR15 3.9 11.6 1.0 CD2 A:TYR15 4.0 12.8 1.0 C A:TYR15 4.0 10.1 1.0 CA A:TYR15 4.1 10.9 1.0 CA A:GLU16 4.1 9.9 1.0 CG A:TYR15 4.5 11.5 1.0 CE1 A:TYR22 4.6 12.1 1.0 CB A:GLU16 4.7 10.2 1.0 N A:CYS17 4.8 10.3 1.0 O A:TYR15 4.8 11.7 1.0 CD2 A:TYR22 4.9 10.6 1.0

R.Kahn, I.Karbat, M.Gurevitz, F.Frolow. X-Ray Structures of Lqh-Alpha-It and Lqh-Alpha-IT8D9D10V Mutant To Be Published.