Potassium in PDB 3jyc: Crystal Structure of the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution

The structure of Crystal Structure of the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution, PDB code: 3jyc was solved by X.Tao, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	49.03 / 3.11
Space group	I 4
Cell size a, b, c (Å), α, β, γ (°)	84.018, 84.018, 196.121, 90.00, 90.00, 90.00
R / Rfree (%)	24.2 / 27

The binding sites of Potassium atom in the Crystal Structure of the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution (pdb code 3jyc). 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 the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution, PDB code: 3jyc:
Jump to Potassium binding site number: 1; 2; 3; 4; 5;

Potassium binding site 1 out of 5 in the Crystal Structure of the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution


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 the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution within 5.0Å range: probe atom residue distance (Å) B Occ A:K501 b:88.2 occ:0.50 O A:GLY145 2.9 85.3 1.0 K A:K502 2.9 88.2 0.5 O A:TYR146 3.1 89.1 1.0 C A:TYR146 3.6 88.5 1.0 C A:GLY145 4.0 87.4 1.0 CA A:TYR146 4.2 87.5 1.0 N A:GLY147 4.3 89.0 1.0 CA A:GLY147 4.5 87.7 1.0 N A:TYR146 4.6 87.1 1.0 O A:ILE144 4.7 88.9 1.0

Potassium binding site 2 out of 5 in the Crystal Structure of the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution


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 the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution within 5.0Å range: probe atom residue distance (Å) B Occ A:K502 b:88.2 occ:0.50 O A:ILE144 2.6 88.9 1.0 K A:K501 2.9 88.2 0.5 K A:K503 2.9 88.2 0.5 O A:GLY145 3.0 85.3 1.0 C A:ILE144 3.8 87.8 1.0 C A:GLY145 3.8 87.4 1.0 CA A:GLY145 4.4 86.9 1.0 N A:GLY145 4.6 86.4 1.0 N A:TYR146 4.7 87.1 1.0 O A:THR143 4.8 89.5 1.0 CA A:ILE144 4.9 86.9 1.0

Potassium binding site 3 out of 5 in the Crystal Structure of the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution


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 the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution within 5.0Å range: probe atom residue distance (Å) B Occ A:K503 b:88.2 occ:0.50 O A:THR143 2.6 89.5 1.0 K A:K504 2.8 88.2 0.5 O A:ILE144 2.9 88.9 1.0 K A:K502 2.9 88.2 0.5 C A:ILE144 3.6 87.8 1.0 C A:THR143 3.7 89.5 1.0 CA A:ILE144 3.9 86.9 1.0 N A:ILE144 4.3 89.1 1.0 OG1 A:THR143 4.6 89.3 1.0 N A:GLY145 4.7 86.4 1.0 CA A:THR143 5.0 89.7 1.0 CB A:THR143 5.0 88.2 1.0

Potassium binding site 4 out of 5 in the Crystal Structure of the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution


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 the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution within 5.0Å range: probe atom residue distance (Å) B Occ A:K504 b:88.2 occ:0.50 OG1 A:THR143 2.6 89.3 1.0 O A:THR143 2.8 89.5 1.0 K A:K503 2.8 88.2 0.5 CB A:THR143 3.6 88.2 1.0 C A:THR143 3.7 89.5 1.0 CA A:THR143 4.3 89.7 1.0 N A:ILE144 4.6 89.1 1.0 O A:THR142 4.7 92.1 1.0 CA A:ILE144 4.8 86.9 1.0 CG2 A:THR143 4.8 87.0 1.0

Potassium binding site 5 out of 5 in the Crystal Structure of the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution


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 the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 Angstrom Resolution within 5.0Å range: probe atom residue distance (Å) B Occ A:K505 b:88.2 occ:0.50 OD1 A:ASP256 4.7 0.8 1.0 O A:ASP256 4.9 85.5 1.0

X.Tao, J.L.Avalos, J.Chen, R.Mackinnon. Crystal Structure of the Eukaryotic Strong Inward-Rectifier K+ Channel KIR2.2 at 3.1 A Resolution. Science V. 326 1668 2009.
ISSN: ISSN 0036-8075
PubMed: 20019282
DOI: 10.1126/SCIENCE.1180310