Potassium in PDB 7oor: Nak C-Di Mutant with Na+ and K+

The structure of Nak C-Di Mutant with Na+ and K+, PDB code: 7oor 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)	40.62 / 1.47
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	81.25, 88.49, 49.66, 90, 90, 90
R / Rfree (%)	14.7 / 18.3

The structure of Nak C-Di Mutant with Na+ and K+ also contains other interesting chemical elements:

Sodium	(Na)	5 atoms
Chlorine	(Cl)	2 atoms

The binding sites of Potassium atom in the Nak C-Di Mutant with Na+ and K+ (pdb code 7oor). 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 C-Di Mutant with Na+ and K+, PDB code: 7oor:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Nak C-Di Mutant with Na+ and K+


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Nak C-Di Mutant with Na+ and K+ within 5.0Å range: probe atom residue distance (Å) B Occ A:K201 b:17.2 occ:0.50 OG1 A:THR63 2.8 16.2 1.0 OG1 B:THR63 2.8 14.9 1.0 O A:THR63 2.9 15.5 1.0 O B:THR63 2.9 15.5 1.0 HB A:THR63 3.0 18.6 1.0 HB B:THR63 3.1 17.4 1.0 CB A:THR63 3.4 15.5 1.0 CB B:THR63 3.4 14.5 1.0 HG1 B:THR63 3.4 17.9 1.0 HG1 A:THR63 3.5 19.4 1.0 K A:K202 3.6 15.2 0.5 C B:THR63 3.7 14.5 1.0 C A:THR63 3.7 14.6 1.0 CA A:THR63 4.2 14.6 1.0 CA B:THR63 4.2 14.1 1.0 HA A:VAL64 4.4 17.3 1.0 HA B:VAL64 4.5 19.1 1.0 HG22 A:THR63 4.6 19.9 1.0 CG2 A:THR63 4.7 16.6 1.0 N A:VAL64 4.7 14.5 1.0 N B:VAL64 4.7 14.8 1.0 HA B:THR63 4.7 16.9 1.0 HA A:THR63 4.7 17.5 1.0 HG21 B:THR63 4.7 18.8 1.0 CG2 B:THR63 4.7 15.7 1.0

Potassium binding site 2 out of 2 in the Nak C-Di Mutant with Na+ and K+


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Nak C-Di Mutant with Na+ and K+ within 5.0Å range: probe atom residue distance (Å) B Occ A:K202 b:15.2 occ:0.50 O A:THR63 2.8 15.5 1.0 O B:THR63 2.8 15.5 1.0 O B:VAL64 3.0 18.9 1.0 O A:VAL64 3.0 19.1 1.0 NA B:NA207 3.6 52.2 0.7 K A:K201 3.6 17.2 0.5 C A:VAL64 3.6 15.5 1.0 C B:VAL64 3.6 15.8 1.0 HA A:VAL64 3.7 17.3 1.0 HA B:VAL64 3.8 19.1 1.0 C A:THR63 4.0 14.6 1.0 C B:THR63 4.0 14.5 1.0 HA3 A:GLY65 4.0 20.2 1.0 HA3 B:GLY65 4.1 25.5 1.0 CA A:VAL64 4.1 14.4 1.0 CA B:VAL64 4.2 15.9 1.0 N A:GLY65 4.3 16.1 1.0 N B:GLY65 4.4 17.7 1.0 N A:VAL64 4.6 14.5 1.0 N B:VAL64 4.6 14.8 1.0 CA A:GLY65 4.7 16.9 1.0 HB A:THR63 4.7 18.6 1.0 CA B:GLY65 4.8 21.3 1.0 HB B:THR63 4.8 17.4 1.0 H A:GLY65 4.9 19.4 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.