Potassium in PDB 7pa0: Nak C-Di F92A Mutant with Rb+ and K+

The structure of Nak C-Di F92A Mutant with Rb+ and K+, PDB code: 7pa0 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)	40.44 / 1.95
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	80.874, 87.312, 49.105, 90, 90, 90
R / Rfree (%)	20.3 / 24.8

The structure of Nak C-Di F92A Mutant with Rb+ and K+ also contains other interesting chemical elements:

Rubidium

(Rb)

3 atoms

The binding sites of Potassium atom in the Nak C-Di F92A Mutant with Rb+ and K+ (pdb code 7pa0). 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 F92A Mutant with Rb+ and K+, PDB code: 7pa0:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Nak C-Di F92A Mutant with Rb+ 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 F92A Mutant with Rb+ and K+ within 5.0Å range: probe atom residue distance (Å) B Occ A:K214 b:51.3 occ:0.29 K A:K215 2.9 80.5 0.5 O A:HOH310 3.0 45.0 1.0 HA3 A:GLY65 3.1 49.0 1.0 RB A:RB202 3.1 31.6 0.5 HA3 B:GLY65 3.2 44.6 1.0 O A:VAL64 3.4 32.1 1.0 O B:VAL64 3.4 34.3 1.0 CA A:GLY65 4.1 40.8 1.0 CA B:GLY65 4.2 37.1 1.0 C A:VAL64 4.4 36.0 1.0 C B:VAL64 4.5 32.6 1.0 C A:GLY65 4.5 42.0 1.0 H B:CYS66 4.6 71.0 1.0 HA2 A:GLY65 4.6 49.0 1.0 C B:GLY65 4.7 46.1 1.0 N A:GLY65 4.7 35.5 1.0 H A:CYS66 4.7 64.0 1.0 HA2 B:GLY65 4.8 44.6 1.0 N B:CYS66 4.8 59.2 1.0 N A:CYS66 4.8 53.4 1.0 N B:GLY65 4.8 33.8 1.0 O A:CYS66 5.0 64.3 1.0

Potassium binding site 2 out of 2 in the Nak C-Di F92A Mutant with Rb+ 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 F92A Mutant with Rb+ and K+ within 5.0Å range: probe atom residue distance (Å) B Occ A:K215 b:80.5 occ:0.53 K A:K214 2.9 51.3 0.3 O A:HOH310 3.2 45.0 1.0 O B:CYS66 3.6 69.9 1.0 O A:CYS66 3.6 64.3 1.0 HA A:ASP67 4.2 79.2 1.0 HA B:ASP67 4.3 91.1 1.0 C A:CYS66 4.4 60.6 1.0 C B:CYS66 4.4 65.0 1.0 H B:CYS66 4.6 71.0 1.0 HA3 A:GLY65 4.8 49.0 1.0 H A:CYS66 4.8 64.0 1.0 HA3 B:GLY65 4.9 44.6 1.0 N B:CYS66 4.9 59.2 1.0 HB3 A:ASP67 4.9 91.1 1.0 N A:CYS66 4.9 53.4 1.0 N A:ASP67 5.0 61.8 1.0 CA A:ASP67 5.0 66.0 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.