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Potassium in PDB 7lj4: Human Traak K+ Channel Fheig Mutant A270P in A K+ Bound Conductive Conformation

Protein crystallography data

The structure of Human Traak K+ Channel Fheig Mutant A270P in A K+ Bound Conductive Conformation, PDB code: 7lj4 was solved by R.A.Rietmeijer, S.G.Brohawn, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 47.66 / 2.78
Space group P 1 21 1
Cell size a, b, c (Å), α, β, γ (°) 80.28, 136.88, 95.58, 90, 94.24, 90
R / Rfree (%) 21.5 / 25.8

Other elements in 7lj4:

The structure of Human Traak K+ Channel Fheig Mutant A270P 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 Fheig Mutant A270P in A K+ Bound Conductive Conformation (pdb code 7lj4). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 7 binding sites of Potassium where determined in the Human Traak K+ Channel Fheig Mutant A270P in A K+ Bound Conductive Conformation, PDB code: 7lj4:
Jump to Potassium binding site number: 1; 2; 3; 4; 5; 6; 7;

Potassium binding site 1 out of 7 in 7lj4

Go back to Potassium Binding Sites List in 7lj4
Potassium binding site 1 out of 7 in the Human Traak K+ Channel Fheig Mutant A270P 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 Fheig Mutant A270P in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K301

b:29.3
occ:1.00
 O B:PHE241 2.3 77.0 1.0
O A:PHE241 2.3 80.5 1.0
O A:TYR132 2.4 72.7 1.0
O B:TYR132 2.4 72.4 1.0
O A:GLY240 3.0 80.0 1.0
O B:GLY240 3.1 74.1 1.0
O A:GLY131 3.1 74.0 1.0
O B:GLY131 3.2 74.2 1.0
K A:K307 3.3 37.1 1.0
C A:PHE241 3.3 80.2 1.0
C B:PHE241 3.3 76.1 1.0
C A:TYR132 3.4 72.8 1.0
C B:TYR132 3.5 74.2 1.0
CA A:PHE241 4.0 79.6 1.0
CA B:PHE241 4.0 73.8 1.0
C A:GLY240 4.0 79.8 1.0
CA A:TYR132 4.1 73.1 1.0
C B:GLY240 4.1 73.6 1.0
CA B:TYR132 4.2 75.0 1.0
C A:GLY131 4.2 74.4 1.0
N A:GLY242 4.3 80.8 1.0
N A:GLY133 4.3 72.7 1.0
C B:GLY131 4.3 74.6 1.0
N B:GLY242 4.3 77.5 1.0
N B:GLY133 4.4 75.8 1.0
N A:PHE241 4.5 79.4 1.0
CA A:GLY133 4.5 71.5 1.0
N B:PHE241 4.5 72.9 1.0
CA B:GLY133 4.6 75.7 1.0
CA A:GLY242 4.6 82.2 1.0
N A:TYR132 4.6 74.0 1.0
CA B:GLY242 4.7 80.4 1.0
N B:TYR132 4.7 75.8 1.0

Potassium binding site 2 out of 7 in 7lj4

Go back to Potassium Binding Sites List in 7lj4
Potassium binding site 2 out of 7 in the Human Traak K+ Channel Fheig Mutant A270P 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 Fheig Mutant A270P in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K302

b:27.6
occ:1.00
 O A:ILE130 2.3 73.4 1.0
O A:VAL239 2.4 80.6 1.0
O B:ILE130 2.5 70.1 1.0
O B:VAL239 2.5 72.2 1.0
O A:THR238 2.7 82.4 1.0
O A:THR129 2.8 76.5 1.0
O B:THR129 2.9 74.4 1.0
O B:THR238 2.9 74.6 1.0
K A:K307 3.2 37.1 1.0
C A:VAL239 3.3 80.6 1.0
C A:ILE130 3.3 74.8 1.0
C B:VAL239 3.4 72.1 1.0
K A:K303 3.4 36.8 1.0
C B:ILE130 3.5 72.0 1.0
C A:THR238 3.7 82.6 1.0
CA A:VAL239 3.8 81.0 1.0
CA A:ILE130 3.9 75.8 1.0
C A:THR129 3.9 76.3 1.0
C B:THR238 3.9 73.7 1.0
C B:THR129 4.0 74.9 1.0
CA B:VAL239 4.0 71.8 1.0
CA B:ILE130 4.1 72.9 1.0
N A:GLY240 4.2 80.5 1.0
N A:VAL239 4.2 81.9 1.0
N B:GLY240 4.3 72.5 1.0
N A:ILE130 4.3 76.8 1.0
N A:GLY131 4.4 75.4 1.0
N B:VAL239 4.4 72.5 1.0
N B:ILE130 4.5 74.7 1.0
N B:GLY131 4.5 73.8 1.0
CA A:GLY240 4.5 80.5 1.0
O A:GLY240 4.6 80.0 1.0
O B:GLY240 4.6 74.1 1.0
CA B:GLY240 4.7 74.0 1.0
O A:GLY131 4.8 74.0 1.0
OG1 A:THR238 4.8 84.2 1.0
CA A:GLY131 4.8 75.2 1.0
O B:GLY131 4.8 74.2 1.0
CA B:GLY131 4.8 74.7 1.0
C A:GLY240 4.9 79.8 1.0
CA A:THR238 4.9 83.8 1.0
OG1 B:THR238 4.9 74.1 1.0
C B:GLY240 5.0 73.6 1.0

Potassium binding site 3 out of 7 in 7lj4

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Potassium binding site 3 out of 7 in the Human Traak K+ Channel Fheig Mutant A270P 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 Fheig Mutant A270P in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K303

b:36.8
occ:1.00
 OG1 A:THR238 2.4 84.2 1.0
OG1 B:THR238 2.5 74.1 1.0
O B:THR238 2.6 74.6 1.0
O A:THR238 2.6 82.4 1.0
O A:THR129 2.6 76.5 1.0
OG1 A:THR129 2.7 76.5 1.0
O B:THR129 2.7 74.4 1.0
OG1 B:THR129 2.8 75.2 1.0
CB A:THR238 3.4 84.9 1.0
K A:K302 3.4 27.6 1.0
CB B:THR238 3.5 75.6 1.0
CB A:THR129 3.6 76.8 1.0
C A:THR129 3.6 76.3 1.0
C A:THR238 3.6 82.6 1.0
C B:THR238 3.6 73.7 1.0
CB B:THR129 3.6 76.2 1.0
C B:THR129 3.7 74.9 1.0
CA A:THR238 4.2 83.8 1.0
CA A:THR129 4.2 76.4 1.0
CA B:THR238 4.2 74.5 1.0
CA B:THR129 4.3 75.8 1.0
N A:ILE130 4.6 76.8 1.0
CG2 A:THR238 4.6 86.4 1.0
N B:VAL239 4.7 72.5 1.0
N A:VAL239 4.7 81.9 1.0
N B:ILE130 4.7 74.7 1.0
CG2 B:THR238 4.7 76.9 1.0
CG2 A:THR129 4.8 78.1 1.0
O A:THR237 4.9 83.8 1.0
O B:THR237 4.9 72.6 1.0
CG2 B:THR129 4.9 78.3 1.0
CA A:ILE130 4.9 75.8 1.0
O A:THR128 5.0 76.0 1.0
CA B:VAL239 5.0 71.8 1.0

Potassium binding site 4 out of 7 in 7lj4

Go back to Potassium Binding Sites List in 7lj4
Potassium binding site 4 out of 7 in the Human Traak K+ Channel Fheig Mutant A270P 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 Fheig Mutant A270P in A K+ Bound Conductive Conformation within 5.0Å range:

Potassium binding site 5 out of 7 in 7lj4

Go back to Potassium Binding Sites List in 7lj4
Potassium binding site 5 out of 7 in the Human Traak K+ Channel Fheig Mutant A270P 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 Fheig Mutant A270P in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K307

b:37.1
occ:1.00
 O A:GLY240 2.2 80.0 1.0
O B:GLY240 2.2 74.1 1.0
O A:GLY131 2.3 74.0 1.0
O B:GLY131 2.7 74.2 1.0
O B:VAL239 2.8 72.2 1.0
O A:ILE130 2.8 73.4 1.0
O A:VAL239 2.8 80.6 1.0
O B:ILE130 3.1 70.1 1.0
K A:K302 3.2 27.6 1.0
C A:GLY240 3.2 79.8 1.0
C B:GLY240 3.2 73.6 1.0
C A:GLY131 3.2 74.4 1.0
K A:K301 3.3 29.3 1.0
C B:GLY131 3.6 74.6 1.0
CA A:GLY240 3.8 80.5 1.0
C A:ILE130 3.9 74.8 1.0
C B:VAL239 3.9 72.1 1.0
C A:VAL239 3.9 80.6 1.0
CA A:GLY131 3.9 75.2 1.0
CA B:GLY240 3.9 74.0 1.0
N B:PHE241 4.2 72.9 1.0
C B:ILE130 4.2 72.0 1.0
N A:TYR132 4.2 74.0 1.0
N A:PHE241 4.2 79.4 1.0
CA B:GLY131 4.3 74.7 1.0
N A:GLY240 4.3 80.5 1.0
N A:GLY131 4.3 75.4 1.0
N B:GLY240 4.3 72.5 1.0
O A:TYR132 4.5 72.7 1.0
CA B:PHE241 4.6 73.8 1.0
N B:TYR132 4.6 75.8 1.0
O B:PHE241 4.6 77.0 1.0
CA A:TYR132 4.6 73.1 1.0
N B:GLY131 4.7 73.8 1.0
O B:TYR132 4.7 72.4 1.0
O A:PHE241 4.7 80.5 1.0
CA A:PHE241 4.7 79.6 1.0
C A:TYR132 4.8 72.8 1.0
C B:PHE241 4.8 76.1 1.0
CA B:TYR132 4.9 75.0 1.0
C A:PHE241 4.9 80.2 1.0

Potassium binding site 6 out of 7 in 7lj4

Go back to Potassium Binding Sites List in 7lj4
Potassium binding site 6 out of 7 in the Human Traak K+ Channel Fheig Mutant A270P 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 Fheig Mutant A270P in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
B:K301

b:70.7
occ:1.00
 O A:HOH430 2.6 64.9 1.0
K B:K302 2.8 86.9 1.0
O B:HOH427 3.0 46.6 1.0
O B:HOH431 3.0 68.3 1.0
O A:HOH428 3.4 42.3 1.0
O B:HOH429 3.8 42.5 1.0
O A:HOH431 4.3 47.5 1.0

Potassium binding site 7 out of 7 in 7lj4

Go back to Potassium Binding Sites List in 7lj4
Potassium binding site 7 out of 7 in the Human Traak K+ Channel Fheig Mutant A270P 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 7 of Human Traak K+ Channel Fheig Mutant A270P in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
B:K302

b:86.9
occ:1.00
 K B:K301 2.8 70.7 1.0
O B:HOH427 3.2 46.6 1.0
O B:HOH429 3.4 42.5 1.0
O A:HOH430 3.9 64.9 1.0
O B:GLY133 4.1 74.8 1.0
C B:GLY133 4.4 75.3 1.0
O A:HOH428 4.5 42.3 1.0
CA B:ASN134 4.5 73.9 1.0
N B:ASN134 4.6 75.4 1.0
O A:GLY133 4.6 69.7 1.0
O B:TYR132 4.7 72.4 1.0
O B:HOH431 4.7 68.3 1.0
O B:PHE241 4.7 77.0 1.0
O B:GLY242 4.7 84.3 1.0
C B:GLY242 5.0 81.8 1.0

Reference:

R.A.Rietmeijer, B.Sorum, B.Li, S.G.Brohawn. Physical Basis For Distinct Basal and Mechanically-Gated Activity of the Human K + Channel Traak Biorxiv 2021.
DOI: 10.1101/2021.06.04.447000
Page generated: Sat Aug 9 13:35:12 2025

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