Potassium in PDB 6m85: Crystal Structure of Inward Rectifier KIR2.2 in A Different Salt Condition

The structure of Crystal Structure of Inward Rectifier KIR2.2 in A Different Salt Condition, PDB code: 6m85 was solved by S.-J.Lee, C.G.Nichols, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	50.00 / 2.71
Space group	I 4
Cell size a, b, c (Å), α, β, γ (°)	82.989, 82.989, 191.794, 90.00, 90.00, 90.00
R / Rfree (%)	22.8 / 25.4

The binding sites of Potassium atom in the Crystal Structure of Inward Rectifier KIR2.2 in A Different Salt Condition (pdb code 6m85). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 6 binding sites of Potassium where determined in the Crystal Structure of Inward Rectifier KIR2.2 in A Different Salt Condition, PDB code: 6m85:
Jump to Potassium binding site number: 1; 2; 3; 4; 5; 6;

Potassium binding site 1 out of 6 in the Crystal Structure of Inward Rectifier KIR2.2 in A Different Salt Condition


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 in A Different Salt Condition within 5.0Å range:

Potassium binding site 2 out of 6 in the Crystal Structure of Inward Rectifier KIR2.2 in A Different Salt Condition


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 in A Different Salt Condition within 5.0Å range: probe atom residue distance (Å) B Occ A:K402 b:0.9 occ:0.25 K A:K403 3.3 97.1 0.2 O A:TYR146 3.4 81.2 1.0 C A:TYR146 4.5 79.5 1.0 CA A:GLY147 4.6 76.5 1.0 C A:GLY147 4.9 75.0 1.0

Potassium binding site 3 out of 6 in the Crystal Structure of Inward Rectifier KIR2.2 in A Different Salt Condition


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 in A Different Salt Condition within 5.0Å range: probe atom residue distance (Å) B Occ A:K403 b:97.1 occ:0.25 O A:TYR146 3.1 81.2 1.0 O A:GLY145 3.2 80.0 1.0 K A:K404 3.2 1.0 0.3 K A:K402 3.3 0.9 0.3 C A:TYR146 3.8 79.5 1.0 CA A:TYR146 4.3 78.4 1.0 C A:GLY145 4.3 80.8 1.0 N A:GLY147 4.5 77.9 1.0 CA A:GLY147 4.6 76.5 1.0 N A:TYR146 4.8 80.0 1.0

Potassium binding site 4 out of 6 in the Crystal Structure of Inward Rectifier KIR2.2 in A Different Salt Condition


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 in A Different Salt Condition within 5.0Å range: probe atom residue distance (Å) B Occ A:K404 b:1.0 occ:0.25 K A:K405 2.7 77.1 0.2 O A:ILE144 3.0 83.4 1.0 O A:GLY145 3.1 80.0 1.0 K A:K403 3.2 97.1 0.2 C A:GLY145 3.9 80.8 1.0 C A:ILE144 4.2 78.2 1.0 CA A:GLY145 4.4 81.0 1.0 N A:GLY145 4.8 81.0 1.0 N A:TYR146 4.9 80.0 1.0 O A:THR143 5.0 65.7 1.0

Potassium binding site 5 out of 6 in the Crystal Structure of Inward Rectifier KIR2.2 in A Different Salt Condition


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 in A Different Salt Condition within 5.0Å range: probe atom residue distance (Å) B Occ A:K405 b:77.1 occ:0.25 K A:K404 2.7 1.0 0.3 O A:THR143 3.0 65.7 1.0 O A:ILE144 3.0 83.4 1.0 K A:K406 3.4 82.0 0.2 C A:ILE144 3.8 78.2 1.0 C A:THR143 4.1 72.3 1.0 CA A:ILE144 4.3 74.7 1.0 N A:ILE144 4.7 76.0 1.0 OG1 A:THR143 4.8 69.3 1.0 N A:GLY145 4.8 81.0 1.0

Potassium binding site 6 out of 6 in the Crystal Structure of Inward Rectifier KIR2.2 in A Different Salt Condition


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 6 of Crystal Structure of Inward Rectifier KIR2.2 in A Different Salt Condition within 5.0Å range: probe atom residue distance (Å) B Occ A:K406 b:82.0 occ:0.25 OG1 A:THR143 2.7 69.3 1.0 O A:THR143 3.1 65.7 1.0 K A:K405 3.4 77.1 0.2 CB A:THR143 3.9 73.5 1.0 C A:THR143 4.0 72.3 1.0 CA A:THR143 4.6 72.8 1.0 O A:THR142 4.7 76.4 1.0 N A:ILE144 5.0 76.0 1.0

S.-J.Lee, C.G.Nichols. Inward Rectifier Gating By Allosteric Regulators To Be Published.