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Potassium in PDB 7ljb: Human Traak K+ Channel Mutant G158D in A K+ Bound Conductive Conformation

Protein crystallography data

The structure of Human Traak K+ Channel Mutant G158D in A K+ Bound Conductive Conformation, PDB code: 7ljb 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) 48.03 / 2.97
Space group P 1 21 1
Cell size a, b, c (Å), α, β, γ (°) 80.14, 137.31, 96.3, 90, 94.72, 90
R / Rfree (%) 19.6 / 24

Other elements in 7ljb:

The structure of Human Traak K+ Channel Mutant G158D 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 Mutant G158D in A K+ Bound Conductive Conformation (pdb code 7ljb). 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 Mutant G158D in A K+ Bound Conductive Conformation, PDB code: 7ljb:
Jump to Potassium binding site number: 1; 2; 3; 4; 5; 6;

Potassium binding site 1 out of 6 in 7ljb

Go back to Potassium Binding Sites List in 7ljb
Potassium binding site 1 out of 6 in the Human Traak K+ Channel Mutant G158D 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 Mutant G158D in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K301

b:103.8
occ:1.00
 O A:THR129 2.7 93.3 1.0
OG1 A:THR238 2.7 100.9 1.0
OG1 B:THR238 2.7 91.6 1.0
O B:THR129 2.8 109.4 1.0
OG1 A:THR129 2.8 87.3 1.0
O B:THR238 2.9 96.5 1.0
O A:THR238 3.0 107.8 1.0
OG1 B:THR129 3.0 102.7 1.0
CB A:THR238 3.5 103.7 1.0
CB B:THR238 3.6 95.5 1.0
CB A:THR129 3.6 88.4 1.0
K B:K302 3.7 103.7 1.0
CB B:THR129 3.8 105.7 1.0
C A:THR129 3.8 92.2 1.0
C B:THR238 3.9 96.2 1.0
C B:THR129 3.9 106.5 1.0
C A:THR238 4.0 107.8 1.0
CA A:THR129 4.3 90.4 1.0
CA B:THR238 4.4 96.7 1.0
CA A:THR238 4.4 105.8 1.0
K A:K306 4.5 113.8 1.0
CA B:THR129 4.5 106.1 1.0
CG2 A:THR238 4.7 102.7 1.0
CG2 B:THR238 4.8 98.5 1.0
O B:THR237 4.8 93.4 1.0
CG2 A:THR129 4.8 89.2 1.0
N A:ILE130 4.9 93.2 1.0
O A:THR237 4.9 101.9 1.0
N B:VAL239 4.9 96.3 1.0
O A:THR128 4.9 90.7 1.0
N B:ILE130 5.0 105.2 1.0

Potassium binding site 2 out of 6 in 7ljb

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Potassium binding site 2 out of 6 in the Human Traak K+ Channel Mutant G158D 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 Mutant G158D in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K302

b:111.3
occ:1.00
 O A:ILE130 2.6 95.5 1.0
O A:VAL239 2.7 110.1 1.0
O A:GLY240 2.7 107.3 1.0
O B:VAL239 2.7 92.6 1.0
O B:GLY240 2.8 92.4 1.0
O B:ILE130 2.8 98.3 1.0
O B:GLY131 2.9 108.6 1.0
O A:GLY131 2.9 93.4 1.0
K B:K302 3.0 103.7 1.0
K B:K301 3.2 92.8 1.0
C A:GLY240 3.5 109.0 1.0
C B:GLY240 3.6 93.5 1.0
C A:GLY131 3.6 97.4 1.0
C B:GLY131 3.6 105.3 1.0
C A:ILE130 3.8 94.6 1.0
C A:VAL239 3.8 111.3 1.0
C B:VAL239 3.9 94.2 1.0
C B:ILE130 3.9 100.2 1.0
CA A:GLY240 4.1 109.6 1.0
CA A:GLY131 4.1 98.8 1.0
CA B:GLY131 4.1 107.2 1.0
CA B:GLY240 4.2 96.2 1.0
N A:GLY131 4.4 97.8 1.0
N A:GLY240 4.4 111.2 1.0
N A:PHE241 4.4 108.2 1.0
N B:PHE241 4.4 92.2 1.0
N B:GLY240 4.5 95.0 1.0
N B:GLY131 4.5 105.9 1.0
N A:TYR132 4.5 97.4 1.0
N B:TYR132 4.6 103.3 1.0
CA B:PHE241 4.8 89.3 1.0
O B:PHE241 4.8 90.0 1.0
CA A:PHE241 4.8 107.7 1.0
CA A:TYR132 4.9 94.7 1.0
CA B:TYR132 4.9 99.6 1.0
O B:TYR132 4.9 94.7 1.0
O A:TYR132 4.9 92.7 1.0
O A:PHE241 5.0 107.2 1.0
CA A:ILE130 5.0 93.2 1.0
CA A:VAL239 5.0 110.3 1.0

Potassium binding site 3 out of 6 in 7ljb

Go back to Potassium Binding Sites List in 7ljb
Potassium binding site 3 out of 6 in the Human Traak K+ Channel Mutant G158D 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 Mutant G158D in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K303

b:99.1
occ:1.00
 O B:HOH427 2.0 93.7 1.0
O A:HOH428 2.3 91.3 1.0
O B:HOH430 3.1 65.3 1.0
O B:HOH433 3.3 95.0 1.0
O B:HOH434 3.3 93.2 1.0
O A:HOH433 3.6 80.9 1.0
O A:GLY133 4.1 85.4 1.0
O B:GLY133 4.6 107.6 1.0
C A:GLY133 4.8 86.5 1.0

Potassium binding site 4 out of 6 in 7ljb

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Potassium binding site 4 out of 6 in the Human Traak K+ Channel Mutant G158D 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 Mutant G158D in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K306

b:113.8
occ:1.00
 K A:K301 4.5 103.8 1.0
OG1 B:THR129 4.6 102.7 1.0
OG1 A:THR238 4.7 100.9 1.0
OG1 A:THR129 4.7 87.3 1.0
OG1 B:THR238 4.9 91.6 1.0

Potassium binding site 5 out of 6 in 7ljb

Go back to Potassium Binding Sites List in 7ljb
Potassium binding site 5 out of 6 in the Human Traak K+ Channel Mutant G158D 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 Mutant G158D in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
B:K301

b:92.8
occ:1.00
 O B:TYR132 2.5 94.7 1.0
O B:PHE241 2.5 90.0 1.0
O A:PHE241 2.6 107.2 1.0
O A:TYR132 2.8 92.7 1.0
O B:GLY131 2.9 108.6 1.0
O B:GLY240 3.1 92.4 1.0
O A:GLY240 3.1 107.3 1.0
O A:GLY131 3.1 93.4 1.0
K A:K302 3.2 111.3 1.0
C B:TYR132 3.3 97.0 1.0
C B:PHE241 3.4 90.0 1.0
C A:PHE241 3.5 106.2 1.0
C A:TYR132 3.6 91.4 1.0
CA A:PHE241 3.9 107.7 1.0
CA B:TYR132 4.0 99.6 1.0
C B:GLY131 4.0 105.3 1.0
CA B:PHE241 4.0 89.3 1.0
C A:GLY240 4.1 109.0 1.0
C B:GLY240 4.1 93.5 1.0
N B:GLY133 4.2 100.9 1.0
C A:GLY131 4.2 97.4 1.0
CA A:TYR132 4.2 94.7 1.0
N B:GLY242 4.3 92.6 1.0
N B:TYR132 4.4 103.3 1.0
N A:GLY242 4.5 103.5 1.0
N A:PHE241 4.5 108.2 1.0
N A:GLY133 4.5 90.5 1.0
N B:PHE241 4.5 92.2 1.0
CA B:GLY133 4.5 105.7 1.0
N A:TYR132 4.7 97.4 1.0
CA B:GLY242 4.7 95.5 1.0
CA A:GLY133 4.8 87.6 1.0
CA A:GLY242 4.9 104.1 1.0
O A:VAL239 5.0 110.1 1.0

Potassium binding site 6 out of 6 in 7ljb

Go back to Potassium Binding Sites List in 7ljb
Potassium binding site 6 out of 6 in the Human Traak K+ Channel Mutant G158D 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 Mutant G158D in A K+ Bound Conductive Conformation within 5.0Å range:
probe atom residue distance (Å) B Occ
B:K302

b:103.7
occ:1.00
 O A:THR238 2.6 107.8 1.0
O B:THR238 2.6 96.5 1.0
O B:ILE130 2.8 98.3 1.0
O A:ILE130 2.9 95.5 1.0
O B:THR129 2.9 109.4 1.0
O B:VAL239 2.9 92.6 1.0
O A:THR129 2.9 93.3 1.0
O A:VAL239 3.0 110.1 1.0
K A:K302 3.0 111.3 1.0
C B:ILE130 3.5 100.2 1.0
C B:VAL239 3.6 94.2 1.0
C A:ILE130 3.6 94.6 1.0
C A:VAL239 3.6 111.3 1.0
K A:K301 3.7 103.8 1.0
C A:THR238 3.7 107.8 1.0
C B:THR238 3.7 96.2 1.0
C B:THR129 3.9 106.5 1.0
C A:THR129 3.9 92.2 1.0
CA B:ILE130 3.9 100.5 1.0
CA A:ILE130 4.0 93.2 1.0
CA A:VAL239 4.0 110.3 1.0
CA B:VAL239 4.0 95.6 1.0
N B:VAL239 4.3 96.3 1.0
N A:VAL239 4.3 108.5 1.0
N B:ILE130 4.3 105.2 1.0
N A:ILE130 4.4 93.2 1.0
N B:GLY131 4.4 105.9 1.0
N B:GLY240 4.5 95.0 1.0
N A:GLY240 4.5 111.2 1.0
N A:GLY131 4.6 97.8 1.0
CA B:GLY240 4.9 96.2 1.0
CA B:THR238 4.9 96.7 1.0
CA B:GLY131 4.9 107.2 1.0
CA A:THR238 4.9 105.8 1.0
O B:GLY240 4.9 92.4 1.0
OG1 A:THR238 4.9 100.9 1.0
CA A:GLY240 5.0 109.6 1.0
OG1 B:THR238 5.0 91.6 1.0
O A:GLY240 5.0 107.3 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 13:35:57 2025

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