Potassium in PDB 6m86: Crystal Structure of Inward Rectifier KIR2.2 Force Open Mutant

The structure of Crystal Structure of Inward Rectifier KIR2.2 Force Open Mutant, PDB code: 6m86 was solved by S.-J.Lee, F.Ren, P.Yuan, C.G.Nichols, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	50.00 / 3.60
Space group	I 4
Cell size a, b, c (Å), α, β, γ (°)	82.852, 82.852, 189.109, 90.00, 90.00, 90.00
R / Rfree (%)	23.4 / 28.7

The binding sites of Potassium atom in the Crystal Structure of Inward Rectifier KIR2.2 Force Open Mutant (pdb code 6m86). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 5 binding sites of Potassium where determined in the Crystal Structure of Inward Rectifier KIR2.2 Force Open Mutant, PDB code: 6m86:
Jump to Potassium binding site number: 1; 2; 3; 4; 5;

Potassium binding site 1 out of 5 in the Crystal Structure of Inward Rectifier KIR2.2 Force Open Mutant


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 Inward Rectifier KIR2.2 Force Open Mutant within 5.0Å range: probe atom residue distance (Å) B Occ A:K401 b:0.5 occ:0.25 O A:TYR146 3.6 0.8 1.0 K A:K402 4.0 0.4 0.3 CA A:GLY147 4.7 0.1 1.0 C A:TYR146 4.7 0.5 1.0 C A:GLY147 4.9 0.9 1.0

Potassium binding site 2 out of 5 in the Crystal Structure of Inward Rectifier KIR2.2 Force Open Mutant


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 Inward Rectifier KIR2.2 Force Open Mutant within 5.0Å range: probe atom residue distance (Å) B Occ A:K402 b:0.4 occ:0.25 K A:K403 2.8 0.4 0.3 O A:GLY145 3.2 0.7 1.0 O A:TYR146 3.3 0.8 1.0 C A:TYR146 3.9 0.5 1.0 K A:K401 4.0 0.5 0.3 C A:GLY145 4.3 0.1 1.0 CA A:TYR146 4.4 0.4 1.0 N A:GLY147 4.6 0.6 1.0 CA A:GLY147 4.8 0.1 1.0 N A:TYR146 4.8 0.2 1.0 K A:K404 4.9 0.2 0.3 O A:ILE144 4.9 0.2 1.0

Potassium binding site 3 out of 5 in the Crystal Structure of Inward Rectifier KIR2.2 Force Open Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Crystal Structure of Inward Rectifier KIR2.2 Force Open Mutant within 5.0Å range: probe atom residue distance (Å) B Occ A:K403 b:0.4 occ:0.25 K A:K404 2.0 0.2 0.3 K A:K402 2.8 0.4 0.3 O A:ILE144 3.0 0.2 1.0 O A:GLY145 3.3 0.7 1.0 C A:GLY145 4.1 0.1 1.0 C A:ILE144 4.2 0.2 1.0 CA A:GLY145 4.6 0.9 1.0 N A:GLY145 4.9 0.1 1.0 N A:TYR146 5.0 0.2 1.0 O A:THR143 5.0 0.1 1.0

Potassium binding site 4 out of 5 in the Crystal Structure of Inward Rectifier KIR2.2 Force Open Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 4 of Crystal Structure of Inward Rectifier KIR2.2 Force Open Mutant within 5.0Å range: probe atom residue distance (Å) B Occ A:K404 b:0.2 occ:0.25 K A:K403 2.0 0.4 0.3 O A:ILE144 2.7 0.2 1.0 O A:THR143 3.4 0.1 1.0 C A:ILE144 3.8 0.2 1.0 K A:K405 4.1 1.0 0.3 CA A:ILE144 4.4 0.6 1.0 C A:THR143 4.4 0.6 1.0 O A:GLY145 4.7 0.7 1.0 N A:GLY145 4.8 0.1 1.0 K A:K402 4.9 0.4 0.3 N A:ILE144 4.9 0.3 1.0

Potassium binding site 5 out of 5 in the Crystal Structure of Inward Rectifier KIR2.2 Force Open Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 5 of Crystal Structure of Inward Rectifier KIR2.2 Force Open Mutant within 5.0Å range: probe atom residue distance (Å) B Occ A:K405 b:1.0 occ:0.25 O A:THR143 3.1 0.1 1.0 OG1 A:THR143 3.1 0.9 1.0 C A:THR143 4.1 0.6 1.0 CB A:THR143 4.1 0.4 1.0 K A:K404 4.1 0.2 0.3 CA A:THR143 4.7 0.3 1.0 O A:THR142 4.8 0.2 1.0 N A:ILE144 5.0 0.3 1.0

S.-J.Lee, C.G.Nichols. Potassium Conduction Through An Eukarytoic Inwardly Rectifying Potassium Channel To Be Published.