Potassium in PDB 8ctx: Crystal Structure of A K+ Selective Nak Mutant (NAK2K) -K+,Tl+ Complex

The structure of Crystal Structure of A K+ Selective Nak Mutant (NAK2K) -K+,Tl+ Complex, PDB code: 8ctx was solved by B.Lee, K.I.White, M.A.Socolich, M.A.Klureza, R.Henning, V.Srajer, R.Ranganathan, D.Hekstra, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	34.23 / 1.99
Space group	I 4
Cell size a, b, c (Å), α, β, γ (°)	68.461, 68.461, 90.389, 90, 90, 90
R / Rfree (%)	21.4 / 25.4

The structure of Crystal Structure of A K+ Selective Nak Mutant (NAK2K) -K+,Tl+ Complex also contains other interesting chemical elements:

Thallium

(Tl)

11 atoms

The binding sites of Potassium atom in the Crystal Structure of A K+ Selective Nak Mutant (NAK2K) -K+,Tl+ Complex (pdb code 8ctx). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Crystal Structure of A K+ Selective Nak Mutant (NAK2K) -K+,Tl+ Complex, PDB code: 8ctx:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Crystal Structure of A K+ Selective Nak Mutant (NAK2K) -K+,Tl+ Complex


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Crystal Structure of A K+ Selective Nak Mutant (NAK2K) -K+,Tl+ Complex within 5.0Å range: probe atom residue distance (Å) B Occ A:K207 b:76.6 occ:0.18 TL A:TL206 2.8 65.0 0.2 K A:K208 3.0 95.0 0.2 O A:HOH308 3.5 79.9 1.0 TL A:TL201 3.7 38.5 0.1 O A:TYR66 3.7 31.1 1.0 HA3 A:GLY67 4.3 47.5 1.0 O A:GLY67 4.9 43.7 1.0 C A:TYR66 4.9 46.5 1.0 O A:HOH302 5.0 61.0 1.0

Potassium binding site 2 out of 2 in the Crystal Structure of A K+ Selective Nak Mutant (NAK2K) -K+,Tl+ Complex


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Crystal Structure of A K+ Selective Nak Mutant (NAK2K) -K+,Tl+ Complex within 5.0Å range: probe atom residue distance (Å) B Occ A:K208 b:95.0 occ:0.25 O A:HOH308 2.9 79.9 1.0 K A:K207 3.0 76.6 0.2 TL A:TL206 4.0 65.0 0.2

B.Lee, K.I.White, M.A.Socolich, M.A.Klureza, R.Henning, V.Srajer, R.Ranganathan, D.Hekstra. Direct Visualization of Electric Field-Stimulated Ion Conduction in A Potassium Channel To Be Published.