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Potassium in PDB 4wfe: Human Traak K+ Channel in A K+ Bound Conductive Conformation

Protein crystallography data

The structure of Human Traak K+ Channel in A K+ Bound Conductive Conformation, PDB code: 4wfe was solved by S.G.Brohawn, R.Mackinnon, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 48.20 / 2.50
Space group P 1 21 1
Cell size a, b, c (Å), α, β, γ (°) 80.795, 138.522, 96.843, 90.00, 95.08, 90.00
R / Rfree (%) 19.9 / 23.4

Other elements in 4wfe:

The structure of Human Traak K+ Channel in A K+ Bound Conductive Conformation also contains other interesting chemical elements:

Calcium (Ca) 3 atoms

Potassium Binding Sites:

The binding sites of Potassium atom in the Human Traak K+ Channel in A K+ Bound Conductive Conformation (pdb code 4wfe). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 6 binding sites of Potassium where determined in the Human Traak K+ Channel in A K+ Bound Conductive Conformation, PDB code: 4wfe:
Jump to Potassium binding site number: 1; 2; 3; 4; 5; 6;

Potassium binding site 1 out of 6 in 4wfe

Go back to Potassium Binding Sites List in 4wfe
Potassium binding site 1 out of 6 in the Human Traak K+ Channel in A K+ Bound Conductive Conformation


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Human Traak K+ Channel in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K301

b:71.0
occ:1.00
 O B:TYR132 2.6 68.6 1.0
O A:TYR132 2.7 70.3 1.0
O A:PHE241 2.7 69.8 1.0
O B:PHE241 2.8 76.3 1.0
O B:GLY131 3.0 65.0 1.0
O A:GLY240 3.0 67.5 1.0
O A:GLY131 3.1 76.6 1.0
O B:GLY240 3.1 74.8 1.0
C A:PHE241 3.4 76.0 1.0
K A:K307 3.4 76.1 1.0
C B:TYR132 3.5 74.5 1.0
C A:TYR132 3.5 75.3 1.0
C B:PHE241 3.6 75.3 1.0
CA A:PHE241 4.0 74.0 1.0
C A:GLY240 4.1 73.4 1.0
C B:GLY131 4.1 75.1 1.0
CA B:TYR132 4.2 73.0 1.0
CA B:PHE241 4.2 74.0 1.0
CA A:TYR132 4.2 75.2 1.0
C A:GLY131 4.2 78.2 1.0
C B:GLY240 4.3 76.4 1.0
N B:GLY133 4.3 77.9 1.0
N A:GLY242 4.4 76.5 1.0
N A:GLY133 4.4 73.8 1.0
CA B:GLY133 4.5 78.5 1.0
N B:GLY242 4.5 76.1 1.0
N A:PHE241 4.5 69.2 1.0
CA A:GLY133 4.6 69.8 1.0
N B:TYR132 4.6 73.6 1.0
N A:TYR132 4.7 76.3 1.0
N B:PHE241 4.7 73.2 1.0
CA A:GLY242 4.8 80.2 1.0
CA B:GLY242 4.8 78.2 1.0

Potassium binding site 2 out of 6 in 4wfe

Go back to Potassium Binding Sites List in 4wfe
Potassium binding site 2 out of 6 in the Human Traak K+ Channel in A K+ Bound Conductive Conformation


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Human Traak K+ Channel in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K302

b:75.5
occ:1.00
 O B:THR238 2.7 73.2 1.0
O A:ILE130 2.7 70.0 1.0
O B:ILE130 2.7 74.6 1.0
O A:THR129 2.7 71.9 1.0
O A:THR238 2.8 80.8 1.0
O B:THR129 2.8 83.2 1.0
O B:VAL239 3.0 73.8 1.0
K A:K307 3.0 76.1 1.0
O A:VAL239 3.1 69.8 1.0
C A:ILE130 3.5 74.1 1.0
K A:K303 3.5 86.8 1.0
C B:ILE130 3.5 77.6 1.0
C B:VAL239 3.5 76.0 1.0
C A:VAL239 3.7 74.2 1.0
C B:THR238 3.8 71.7 1.0
C A:THR129 3.9 68.8 1.0
C A:THR238 3.9 78.7 1.0
C B:THR129 3.9 83.2 1.0
CA B:VAL239 4.0 73.1 1.0
CA B:ILE130 4.0 80.1 1.0
CA A:ILE130 4.0 69.8 1.0
CA A:VAL239 4.1 78.8 1.0
N B:GLY240 4.4 78.1 1.0
N B:VAL239 4.4 72.1 1.0
N A:ILE130 4.4 69.8 1.0
N A:GLY131 4.5 72.8 1.0
N B:ILE130 4.5 82.3 1.0
N A:VAL239 4.5 75.8 1.0
N B:GLY131 4.5 76.2 1.0
N A:GLY240 4.5 73.4 1.0
CA A:GLY131 4.8 75.4 1.0
CA B:GLY240 4.8 77.6 1.0
CA B:GLY131 4.8 75.6 1.0
OG1 B:THR238 4.9 72.5 1.0
CA A:GLY240 4.9 74.1 1.0
O B:GLY240 4.9 74.8 1.0
OG1 A:THR238 4.9 76.2 1.0
O A:GLY240 4.9 67.5 1.0

Potassium binding site 3 out of 6 in 4wfe

Go back to Potassium Binding Sites List in 4wfe
Potassium binding site 3 out of 6 in the Human Traak K+ Channel in A K+ Bound Conductive Conformation


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Human Traak K+ Channel in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K303

b:86.8
occ:1.00
 OG1 A:THR238 2.5 76.2 1.0
OG1 B:THR238 2.6 72.5 1.0
OG1 A:THR129 2.7 71.5 1.0
OG1 B:THR129 2.7 88.0 1.0
O A:THR238 2.9 80.8 1.0
O B:THR238 3.0 73.2 1.0
O A:THR129 3.0 71.9 1.0
O B:THR129 3.1 83.2 1.0
CB A:THR238 3.5 83.1 1.0
K A:K302 3.5 75.5 1.0
CB A:THR129 3.5 74.5 1.0
CB B:THR238 3.5 74.0 1.0
CB B:THR129 3.6 85.1 1.0
C A:THR129 3.8 68.8 1.0
C A:THR238 3.8 78.7 1.0
C B:THR129 3.9 83.2 1.0
C B:THR238 3.9 71.7 1.0
CA A:THR238 4.3 79.0 1.0
CA A:THR129 4.3 71.2 1.0
CA B:THR238 4.4 72.9 1.0
CA B:THR129 4.4 83.9 1.0
K A:K304 4.5 0.7 1.0
CG2 A:THR238 4.7 83.2 1.0
CG2 B:THR238 4.7 75.8 1.0
CG2 A:THR129 4.7 75.4 1.0
N A:ILE130 4.7 69.8 1.0
CG2 B:THR129 4.8 88.8 1.0
O A:THR237 4.8 85.9 1.0
N B:ILE130 4.8 82.3 1.0
O B:THR237 4.9 80.3 1.0
N A:VAL239 4.9 75.8 1.0
N B:VAL239 4.9 72.1 1.0
O A:THR128 5.0 70.3 1.0
O B:THR128 5.0 83.6 1.0

Potassium binding site 4 out of 6 in 4wfe

Go back to Potassium Binding Sites List in 4wfe
Potassium binding site 4 out of 6 in the Human Traak K+ Channel in A K+ Bound Conductive Conformation


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 4 of Human Traak K+ Channel in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K304

b:0.7
occ:1.00
 OG1 B:THR238 4.3 72.5 1.0
OG1 B:THR129 4.4 88.0 1.0
K A:K303 4.5 86.8 1.0
OG1 A:THR129 4.5 71.5 1.0
OG1 A:THR238 4.7 76.2 1.0

Potassium binding site 5 out of 6 in 4wfe

Go back to Potassium Binding Sites List in 4wfe
Potassium binding site 5 out of 6 in the Human Traak K+ Channel in A K+ Bound Conductive Conformation


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 5 of Human Traak K+ Channel in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K307

b:76.1
occ:1.00
 O B:GLY240 2.6 74.8 1.0
O A:GLY240 2.7 67.5 1.0
O B:GLY131 2.7 65.0 1.0
O B:ILE130 2.8 74.6 1.0
O A:VAL239 2.8 69.8 1.0
O A:GLY131 2.8 76.6 1.0
O B:VAL239 2.9 73.8 1.0
O A:ILE130 2.9 70.0 1.0
K A:K302 3.0 75.5 1.0
C B:GLY131 3.4 75.1 1.0
K A:K301 3.4 71.0 1.0
C B:GLY240 3.5 76.4 1.0
C A:GLY240 3.5 73.4 1.0
C A:GLY131 3.6 78.2 1.0
C B:ILE130 3.9 77.6 1.0
CA B:GLY131 3.9 75.6 1.0
C A:VAL239 3.9 74.2 1.0
C B:VAL239 3.9 76.0 1.0
CA B:GLY240 4.0 77.6 1.0
CA A:GLY131 4.0 75.4 1.0
C A:ILE130 4.0 74.1 1.0
CA A:GLY240 4.0 74.1 1.0
N B:GLY131 4.4 76.2 1.0
N B:TYR132 4.4 73.6 1.0
N B:GLY240 4.4 78.1 1.0
N A:GLY240 4.4 73.4 1.0
N B:PHE241 4.5 73.2 1.0
N A:PHE241 4.5 69.2 1.0
N A:GLY131 4.5 72.8 1.0
N A:TYR132 4.5 76.3 1.0
CA B:TYR132 4.8 73.0 1.0
CA A:PHE241 4.9 74.0 1.0
CA B:PHE241 4.9 74.0 1.0
O B:TYR132 4.9 68.6 1.0
CA A:TYR132 5.0 75.2 1.0

Potassium binding site 6 out of 6 in 4wfe

Go back to Potassium Binding Sites List in 4wfe
Potassium binding site 6 out of 6 in the Human Traak K+ Channel in A K+ Bound Conductive Conformation


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 6 of Human Traak K+ Channel in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
B:K301

b:0.3
occ:1.00
 O B:GLY96 5.0 74.9 1.0

Reference:

S.G.Brohawn, E.B.Campbell, R.Mackinnon. Physical Mechanism For Gating and Mechanosensitivity of the Human Traak K+ Channel Nature 2014.
ISSN: ESSN 1476-4687
Page generated: Sat Aug 9 08:02:12 2025

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