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Potassium in PDB 4gx5: Gsuk Channel

Protein crystallography data

The structure of Gsuk Channel, PDB code: 4gx5 was solved by C.Kong, W.Zeng, S.Ye, L.Chen, D.B.Sauer, Y.Lam, M.G.Derebe, Y.Jiang, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 45.39 / 3.70
Space group C 1 2 1
Cell size a, b, c (Å), α, β, γ (°) 234.976, 108.364, 165.787, 90.00, 134.96, 90.00
R / Rfree (%) 26.1 / 29.3

Other elements in 4gx5:

The structure of Gsuk Channel also contains other interesting chemical elements:

Calcium (Ca) 4 atoms
Zinc (Zn) 4 atoms

Potassium Binding Sites:

Pages:

>>> Page 1 <<< Page 2, Binding sites: 11 - 12;

Binding sites:

The binding sites of Potassium atom in the Gsuk Channel (pdb code 4gx5). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 12 binding sites of Potassium where determined in the Gsuk Channel, PDB code: 4gx5:
Jump to Potassium binding site number: 1; 2; 3; 4; 5; 6; 7; 8; 9; 10;

Potassium binding site 1 out of 12 in 4gx5

Go back to Potassium Binding Sites List in 4gx5
Potassium binding site 1 out of 12 in the Gsuk Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Gsuk Channel within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K601

b:0.7
occ:0.50
 O B:PHE71 3.1 0.0 1.0
O A:PHE71 3.2 0.0 1.0
O A:GLY70 3.2 0.7 1.0
O B:GLY70 3.3 0.3 1.0
C B:PHE71 3.7 0.4 1.0
C A:PHE71 3.7 0.6 1.0
K A:K602 3.7 0.5 0.5
CA B:PHE71 4.3 0.4 1.0
N A:GLY72 4.3 0.7 1.0
N B:GLY72 4.3 0.9 1.0
C A:GLY70 4.4 0.1 1.0
CA A:PHE71 4.4 0.5 1.0
C B:GLY70 4.4 0.5 1.0
CA A:GLY72 4.5 0.2 1.0
CA B:GLY72 4.5 0.5 1.0
N B:PHE71 4.9 0.9 1.0
N A:PHE71 4.9 0.9 1.0

Potassium binding site 2 out of 12 in 4gx5

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Potassium binding site 2 out of 12 in the Gsuk Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Gsuk Channel within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K602

b:0.5
occ:0.50
 K A:K603 2.6 0.8 0.5
O B:GLY70 3.0 0.3 1.0
O B:LEU69 3.0 0.4 1.0
O A:LEU69 3.0 0.7 1.0
O A:GLY70 3.1 0.7 1.0
C A:GLY70 3.7 0.1 1.0
K A:K601 3.7 0.7 0.5
C B:GLY70 3.7 0.5 1.0
CA A:GLY70 4.0 0.4 1.0
C A:LEU69 4.1 0.9 1.0
C B:LEU69 4.1 0.4 1.0
CA B:GLY70 4.2 0.6 1.0
N A:GLY70 4.5 0.5 1.0
N B:GLY70 4.7 0.7 1.0
N A:PHE71 4.7 0.9 1.0
N B:PHE71 4.7 0.9 1.0

Potassium binding site 3 out of 12 in 4gx5

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Potassium binding site 3 out of 12 in the Gsuk Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Gsuk Channel within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K603

b:0.8
occ:0.50
 K A:K602 2.6 0.5 0.5
O A:LEU69 2.7 0.7 1.0
O B:LEU69 2.8 0.4 1.0
O A:THR68 3.3 0.2 1.0
O B:THR68 3.3 0.9 1.0
K A:K604 3.3 0.4 0.5
C A:LEU69 3.6 0.9 1.0
C B:LEU69 3.7 0.4 1.0
CA A:LEU69 4.3 0.2 1.0
C A:THR68 4.4 0.1 1.0
CA B:LEU69 4.4 0.1 1.0
C B:THR68 4.4 0.4 1.0
N A:GLY70 4.5 0.5 1.0
CA A:GLY70 4.7 0.4 1.0
N B:GLY70 4.7 0.7 1.0
N A:LEU69 4.9 0.2 1.0
N B:LEU69 4.9 0.0 1.0
CA B:GLY70 4.9 0.6 1.0
O B:GLY70 4.9 0.3 1.0

Potassium binding site 4 out of 12 in 4gx5

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Potassium binding site 4 out of 12 in the Gsuk Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 4 of Gsuk Channel within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K604

b:0.4
occ:0.50
 O B:THR68 3.1 0.9 1.0
O A:THR68 3.1 0.2 1.0
K A:K603 3.3 0.8 0.5
OG1 A:THR68 3.6 0.1 1.0
OG1 B:THR68 3.8 0.8 1.0
CB B:THR68 4.0 0.6 1.0
C A:THR68 4.1 0.1 1.0
C B:THR68 4.1 0.4 1.0
CB A:THR68 4.1 0.1 1.0
CA B:THR68 4.8 0.7 1.0
CA A:THR68 4.8 0.8 1.0
N A:LEU69 4.9 0.2 1.0
O A:LEU69 5.0 0.7 1.0

Potassium binding site 5 out of 12 in 4gx5

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Potassium binding site 5 out of 12 in the Gsuk Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 5 of Gsuk Channel within 5.0Å range:

Potassium binding site 6 out of 12 in 4gx5

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Potassium binding site 6 out of 12 in the Gsuk Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 6 of Gsuk Channel within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K608

b:0.1
occ:0.50
 CD2 B:LEU97 3.9 0.7 1.0
CD2 A:LEU97 4.0 0.6 1.0
CG A:LEU97 4.9 0.5 1.0
CG B:LEU97 4.9 0.2 1.0

Potassium binding site 7 out of 12 in 4gx5

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Potassium binding site 7 out of 12 in the Gsuk Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 7 of Gsuk Channel within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K601

b:0.5
occ:0.50
 O D:THR68 2.9 0.4 1.0
O C:THR68 3.0 0.2 1.0
K C:K602 3.1 0.3 0.5
OG1 D:THR68 3.6 0.8 1.0
C D:THR68 3.9 1.0 1.0
CB D:THR68 3.9 0.7 1.0
C C:THR68 4.0 0.1 1.0
CB C:THR68 4.0 0.3 1.0
OG1 C:THR68 4.1 0.6 1.0
CA D:THR68 4.6 0.6 1.0
CA C:THR68 4.8 0.1 1.0
N D:LEU69 4.9 0.5 1.0
N C:LEU69 4.9 0.5 1.0

Potassium binding site 8 out of 12 in 4gx5

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Potassium binding site 8 out of 12 in the Gsuk Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 8 of Gsuk Channel within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K602

b:0.3
occ:0.50
 O D:LEU69 2.8 0.6 1.0
O C:LEU69 3.0 0.7 1.0
O D:THR68 3.1 0.4 1.0
K C:K601 3.1 0.5 0.5
O C:THR68 3.2 0.2 1.0
K C:K603 3.5 0.9 0.5
C C:LEU69 3.7 0.7 1.0
C D:LEU69 3.7 0.5 1.0
C D:THR68 4.2 1.0 1.0
C C:THR68 4.3 0.1 1.0
CA D:LEU69 4.3 0.6 1.0
CA C:LEU69 4.3 0.5 1.0
N C:GLY70 4.5 0.1 1.0
N D:GLY70 4.7 0.7 1.0
N D:LEU69 4.7 0.5 1.0
N C:LEU69 4.8 0.5 1.0
CA C:GLY70 4.8 0.5 1.0
CA D:GLY70 4.9 0.9 1.0

Potassium binding site 9 out of 12 in 4gx5

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Potassium binding site 9 out of 12 in the Gsuk Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 9 of Gsuk Channel within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K603

b:0.9
occ:0.50
 O D:GLY70 2.6 0.8 1.0
O C:GLY70 2.7 0.8 1.0
K C:K604 2.9 0.9 0.5
O D:LEU69 3.4 0.6 1.0
O C:LEU69 3.5 0.7 1.0
K C:K602 3.5 0.3 0.5
C C:GLY70 3.5 0.8 1.0
C D:GLY70 3.6 1.0 1.0
CA C:GLY70 4.1 0.5 1.0
CA D:GLY70 4.2 0.9 1.0
C D:LEU69 4.5 0.5 1.0
C C:LEU69 4.5 0.7 1.0
N D:PHE71 4.5 0.6 1.0
N C:PHE71 4.5 0.7 1.0
N C:GLY70 4.7 0.1 1.0
CA D:PHE71 4.7 0.4 1.0
CA C:PHE71 4.8 0.4 1.0
N D:GLY70 4.9 0.7 1.0
C D:PHE71 4.9 0.9 1.0
C C:PHE71 4.9 0.2 1.0

Potassium binding site 10 out of 12 in 4gx5

Go back to Potassium Binding Sites List in 4gx5
Potassium binding site 10 out of 12 in the Gsuk Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 10 of Gsuk Channel within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K604

b:0.9
occ:0.50
 K C:K603 2.9 0.9 0.5
O D:PHE71 3.1 0.5 1.0
O C:PHE71 3.1 0.0 1.0
O C:GLY70 3.2 0.8 1.0
O D:GLY70 3.2 0.8 1.0
C D:PHE71 3.6 0.9 1.0
C C:PHE71 3.6 0.2 1.0
N D:GLY72 4.2 0.0 1.0
CA D:PHE71 4.2 0.4 1.0
N C:GLY72 4.2 0.6 1.0
C C:GLY70 4.3 0.8 1.0
C D:GLY70 4.3 1.0 1.0
CA C:PHE71 4.4 0.4 1.0
CA C:GLY72 4.4 0.3 1.0
CA D:GLY72 4.4 1.0 1.0
N D:PHE71 4.8 0.6 1.0
N C:PHE71 4.9 0.7 1.0

Reference:

C.Kong, W.Zeng, S.Ye, L.Chen, D.B.Sauer, Y.Lam, M.G.Derebe, Y.Jiang. Distinct Gating Mechanisms Revealed By the Structures of A Multi-Ligand Gated K(+) Channel. Elife V. 1 00184 2012.
PubMed: 23240087
DOI: 10.7554/ELIFE.00184
Page generated: Sat Aug 9 06:53:53 2025

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