Potassium in PDB 7oq2: Nak S-Di Mutant Soaked in Na+

The structure of Nak S-Di Mutant Soaked in Na+, PDB code: 7oq2 was solved by S.Minniberger, A.J.R.Plested, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	59.73 / 1.70
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	81.204, 88.173, 49.389, 90, 90, 90
R / Rfree (%)	18.6 / 23.3

The structure of Nak S-Di Mutant Soaked in Na+ also contains other interesting chemical elements:

Sodium	(Na)	4 atoms
Chlorine	(Cl)	2 atoms

The binding sites of Potassium atom in the Nak S-Di Mutant Soaked in Na+ (pdb code 7oq2). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Nak S-Di Mutant Soaked in Na+, PDB code: 7oq2:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Nak S-Di Mutant Soaked in Na+


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Nak S-Di Mutant Soaked in Na+ within 5.0Å range: probe atom residue distance (Å) B Occ A:K218 b:21.4 occ:0.50 OG1 A:THR63 2.7 16.9 1.0 OG1 B:THR63 2.7 18.8 1.0 O B:THR63 2.8 18.9 1.0 O A:THR63 2.9 15.4 1.0 HB B:THR63 3.0 18.4 1.0 HB A:THR63 3.1 23.1 1.0 HG1 A:THR63 3.4 20.4 1.0 CB B:THR63 3.4 15.3 1.0 CB A:THR63 3.4 19.2 1.0 HG1 B:THR63 3.4 22.6 1.0 K A:K219 3.6 14.5 0.5 C B:THR63 3.7 20.9 1.0 C A:THR63 3.8 17.8 1.0 NA B:NA205 4.0 41.2 0.4 CA B:THR63 4.2 19.6 1.0 CA A:THR63 4.2 15.7 1.0 HA B:VAL64 4.4 23.1 1.0 HA A:VAL64 4.6 16.6 1.0 HG21 A:THR63 4.6 24.3 1.0 N B:VAL64 4.6 16.4 1.0 HG21 B:THR63 4.6 25.1 1.0 CG2 A:THR63 4.6 20.2 1.0 HA B:THR63 4.7 23.5 1.0 CG2 B:THR63 4.7 20.9 1.0 N A:VAL64 4.7 16.6 1.0 HA A:THR63 4.8 18.8 1.0 CA B:VAL64 5.0 19.2 1.0

Potassium binding site 2 out of 2 in the Nak S-Di Mutant Soaked in Na+


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Nak S-Di Mutant Soaked in Na+ within 5.0Å range: probe atom residue distance (Å) B Occ A:K219 b:14.5 occ:0.50 O A:THR63 2.8 15.4 1.0 O B:VAL64 2.9 17.2 1.0 O B:THR63 2.9 18.9 1.0 O A:VAL64 2.9 19.8 1.0 NA A:NA217 3.3 30.3 0.2 C A:VAL64 3.5 18.9 1.0 C B:VAL64 3.6 25.4 1.0 K A:K218 3.6 21.4 0.5 HA A:VAL64 3.7 16.6 1.0 HA3 A:GLY65 3.8 22.6 1.0 HA B:VAL64 3.9 23.1 1.0 C A:THR63 3.9 17.8 1.0 HA3 B:GLY65 4.0 25.5 1.0 C B:THR63 4.0 20.9 1.0 CA A:VAL64 4.1 13.9 1.0 CA B:VAL64 4.2 19.2 1.0 N A:GLY65 4.3 15.9 1.0 N B:GLY65 4.4 21.4 1.0 N A:VAL64 4.5 16.6 1.0 CA A:GLY65 4.5 18.8 1.0 N B:VAL64 4.7 16.4 1.0 CA B:GLY65 4.7 21.2 1.0 HB A:THR63 4.7 23.1 1.0 O B:HOH329 4.8 28.8 0.6 HB B:THR63 4.9 18.4 1.0 O A:HOH315 5.0 33.3 1.0 HA2 A:GLY65 5.0 22.6 1.0 H A:GLY65 5.0 19.2 1.0

S.Minniberger, S.Abdolvand, S.Braunbeck, H.Sun, A.J.R.Plested. Asymmetry and Ion Selectivity Properties in the Bacterial Channel Nak Mimicking Ionotropic Glutamate Receptors To Be Published.