Potassium in PDB 4xdj: Crystal Structure of Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2)
Protein crystallography data
The structure of Crystal Structure of Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2), PDB code: 4xdj
was solved by
A.C.W.Pike,
Y.Y.Dong,
A.Mackenzie,
S.Mukhopadhyay,
C.H.Arrowsmith,
A.M.Edwards,
C.Bountra,
N.A.Burgess-Brown,
E.P.Carpenter,
Structuralgenomics Consortium (Sgc),
with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:
Resolution Low / High (Å)
|
37.26 /
3.80
|
Space group
|
P 1 21 1
|
Cell size a, b, c (Å), α, β, γ (°)
|
76.745,
113.871,
111.782,
90.00,
90.97,
90.00
|
R / Rfree (%)
|
26.3 /
27.7
|
Potassium Binding Sites:
The binding sites of Potassium atom in the Crystal Structure of Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2)
(pdb code 4xdj). This binding sites where shown within
5.0 Angstroms radius around Potassium atom.
In total 6 binding sites of Potassium where determined in the
Crystal Structure of Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2), PDB code: 4xdj:
Jump to Potassium binding site number:
1;
2;
3;
4;
5;
6;
Potassium binding site 1 out
of 6 in 4xdj
Go back to
Potassium Binding Sites List in 4xdj
Potassium binding site 1 out
of 6 in the Crystal Structure of Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2)
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 Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2) within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:K601
b:0.5
occ:1.00
|
O
|
A:GLY283
|
2.3
|
0.5
|
1.0
|
O
|
B:GLY174
|
2.3
|
0.5
|
1.0
|
O
|
A:GLY174
|
2.4
|
0.1
|
1.0
|
O
|
B:GLY283
|
2.5
|
0.6
|
1.0
|
O
|
A:ILE173
|
2.8
|
0.6
|
1.0
|
O
|
A:VAL282
|
2.9
|
0.9
|
1.0
|
O
|
B:ILE173
|
2.9
|
0.1
|
1.0
|
O
|
B:VAL282
|
3.0
|
0.2
|
1.0
|
K
|
A:K602
|
3.3
|
0.7
|
1.0
|
C
|
B:GLY174
|
3.3
|
0.3
|
1.0
|
C
|
A:GLY174
|
3.3
|
0.1
|
1.0
|
C
|
A:GLY283
|
3.3
|
0.8
|
1.0
|
C
|
B:GLY283
|
3.5
|
0.7
|
1.0
|
C
|
A:ILE173
|
3.9
|
0.2
|
1.0
|
C
|
B:ILE173
|
4.0
|
0.1
|
1.0
|
C
|
A:VAL282
|
4.0
|
0.6
|
1.0
|
CA
|
B:GLY174
|
4.0
|
0.1
|
1.0
|
CA
|
A:GLY283
|
4.0
|
0.2
|
1.0
|
CA
|
A:GLY174
|
4.1
|
0.8
|
1.0
|
C
|
B:VAL282
|
4.1
|
0.9
|
1.0
|
CA
|
B:GLY283
|
4.2
|
0.4
|
1.0
|
O
|
A:TYR175
|
4.2
|
0.2
|
1.0
|
N
|
A:TYR175
|
4.2
|
0.5
|
1.0
|
N
|
B:TYR175
|
4.3
|
0.0
|
1.0
|
O
|
B:TYR175
|
4.3
|
0.9
|
1.0
|
N
|
A:PHE284
|
4.3
|
0.6
|
1.0
|
N
|
B:GLY174
|
4.4
|
0.8
|
1.0
|
N
|
A:GLY174
|
4.4
|
0.7
|
1.0
|
N
|
A:GLY283
|
4.4
|
0.8
|
1.0
|
CA
|
A:TYR175
|
4.5
|
0.7
|
1.0
|
N
|
B:PHE284
|
4.5
|
0.6
|
1.0
|
CA
|
B:TYR175
|
4.5
|
0.9
|
1.0
|
N
|
B:GLY283
|
4.6
|
0.9
|
1.0
|
C
|
A:TYR175
|
4.6
|
0.6
|
1.0
|
CA
|
A:PHE284
|
4.6
|
1.0
|
1.0
|
C
|
B:TYR175
|
4.7
|
0.1
|
1.0
|
CA
|
B:PHE284
|
4.8
|
0.8
|
1.0
|
C
|
A:PHE284
|
5.0
|
0.5
|
1.0
|
|
Potassium binding site 2 out
of 6 in 4xdj
Go back to
Potassium Binding Sites List in 4xdj
Potassium binding site 2 out
of 6 in the Crystal Structure of Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2)
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 Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2) within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:K602
b:0.7
occ:1.00
|
O
|
A:ILE173
|
2.5
|
0.6
|
1.0
|
O
|
A:THR281
|
2.6
|
99.3
|
1.0
|
O
|
A:THR172
|
2.6
|
0.7
|
1.0
|
O
|
A:VAL282
|
2.7
|
0.9
|
1.0
|
O
|
B:THR172
|
2.7
|
0.6
|
1.0
|
O
|
B:THR281
|
2.7
|
98.9
|
1.0
|
O
|
B:VAL282
|
2.7
|
0.2
|
1.0
|
O
|
B:ILE173
|
2.8
|
0.1
|
1.0
|
C
|
A:ILE173
|
3.3
|
0.2
|
1.0
|
K
|
A:K601
|
3.3
|
0.5
|
1.0
|
C
|
A:VAL282
|
3.4
|
0.6
|
1.0
|
K
|
A:K603
|
3.5
|
88.6
|
1.0
|
C
|
B:ILE173
|
3.5
|
0.1
|
1.0
|
C
|
B:VAL282
|
3.5
|
0.9
|
1.0
|
C
|
A:THR172
|
3.7
|
0.9
|
1.0
|
C
|
A:THR281
|
3.7
|
0.3
|
1.0
|
CA
|
A:ILE173
|
3.7
|
0.6
|
1.0
|
C
|
B:THR172
|
3.8
|
0.6
|
1.0
|
C
|
B:THR281
|
3.9
|
98.6
|
1.0
|
CA
|
A:VAL282
|
3.9
|
98.7
|
1.0
|
CA
|
B:ILE173
|
4.0
|
0.7
|
1.0
|
CA
|
B:VAL282
|
4.0
|
96.0
|
1.0
|
N
|
A:ILE173
|
4.2
|
0.8
|
1.0
|
N
|
A:GLY174
|
4.2
|
0.7
|
1.0
|
N
|
A:VAL282
|
4.3
|
98.4
|
1.0
|
N
|
B:ILE173
|
4.4
|
0.9
|
1.0
|
N
|
B:VAL282
|
4.4
|
95.8
|
1.0
|
N
|
A:GLY283
|
4.4
|
0.8
|
1.0
|
N
|
B:GLY174
|
4.4
|
0.8
|
1.0
|
N
|
B:GLY283
|
4.5
|
0.9
|
1.0
|
O
|
A:GLY174
|
4.7
|
0.1
|
1.0
|
O
|
A:GLY283
|
4.7
|
0.5
|
1.0
|
CA
|
A:GLY174
|
4.8
|
0.8
|
1.0
|
O
|
B:GLY174
|
4.8
|
0.5
|
1.0
|
CA
|
A:GLY283
|
4.8
|
0.2
|
1.0
|
O
|
B:GLY283
|
4.8
|
0.6
|
1.0
|
CA
|
B:GLY174
|
4.9
|
0.1
|
1.0
|
CA
|
A:THR281
|
5.0
|
95.1
|
1.0
|
C
|
A:GLY174
|
5.0
|
0.1
|
1.0
|
|
Potassium binding site 3 out
of 6 in 4xdj
Go back to
Potassium Binding Sites List in 4xdj
Potassium binding site 3 out
of 6 in the Crystal Structure of Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2)
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 Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2) within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:K603
b:88.6
occ:1.00
|
OG1
|
A:THR172
|
2.6
|
0.8
|
1.0
|
O
|
A:THR172
|
2.7
|
0.7
|
1.0
|
O
|
A:THR281
|
2.8
|
99.3
|
1.0
|
O
|
B:THR281
|
2.8
|
98.9
|
1.0
|
OG1
|
B:THR172
|
2.9
|
0.9
|
1.0
|
O
|
B:THR172
|
2.9
|
0.6
|
1.0
|
OG1
|
B:THR281
|
3.0
|
90.1
|
1.0
|
OG1
|
A:THR281
|
3.1
|
94.8
|
1.0
|
CB
|
A:THR172
|
3.3
|
0.3
|
1.0
|
K
|
A:K602
|
3.5
|
0.7
|
1.0
|
CB
|
A:THR281
|
3.5
|
96.3
|
1.0
|
C
|
A:THR172
|
3.5
|
0.9
|
1.0
|
CB
|
B:THR281
|
3.5
|
93.8
|
1.0
|
CB
|
B:THR172
|
3.6
|
0.7
|
1.0
|
C
|
B:THR281
|
3.7
|
98.6
|
1.0
|
C
|
A:THR281
|
3.7
|
0.3
|
1.0
|
C
|
B:THR172
|
3.8
|
0.6
|
1.0
|
CA
|
A:THR172
|
4.0
|
0.9
|
1.0
|
CA
|
A:THR281
|
4.2
|
95.1
|
1.0
|
CA
|
B:THR281
|
4.2
|
92.7
|
1.0
|
CA
|
B:THR172
|
4.4
|
0.9
|
1.0
|
N
|
A:ILE173
|
4.5
|
0.8
|
1.0
|
CG2
|
A:THR172
|
4.6
|
0.2
|
1.0
|
N
|
B:VAL282
|
4.7
|
95.8
|
1.0
|
CG2
|
A:THR281
|
4.7
|
93.8
|
1.0
|
N
|
A:VAL282
|
4.7
|
98.4
|
1.0
|
N
|
B:ILE173
|
4.8
|
0.9
|
1.0
|
O
|
A:THR171
|
4.8
|
0.8
|
1.0
|
CG2
|
B:THR281
|
4.8
|
91.4
|
1.0
|
CG2
|
B:THR172
|
4.9
|
0.1
|
1.0
|
CA
|
A:ILE173
|
4.9
|
0.6
|
1.0
|
O
|
B:THR280
|
4.9
|
95.6
|
1.0
|
|
Potassium binding site 4 out
of 6 in 4xdj
Go back to
Potassium Binding Sites List in 4xdj
Potassium binding site 4 out
of 6 in the Crystal Structure of Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2)
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 Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2) within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
C:K601
b:0.5
occ:1.00
|
O
|
C:GLY283
|
2.4
|
0.2
|
1.0
|
O
|
D:GLY174
|
2.4
|
0.6
|
1.0
|
O
|
C:GLY174
|
2.4
|
0.2
|
1.0
|
O
|
D:GLY283
|
2.5
|
0.2
|
1.0
|
O
|
D:ILE173
|
2.9
|
0.4
|
1.0
|
O
|
C:VAL282
|
2.9
|
0.8
|
1.0
|
O
|
C:ILE173
|
2.9
|
0.4
|
1.0
|
O
|
D:VAL282
|
2.9
|
0.1
|
1.0
|
K
|
C:K602
|
3.3
|
0.6
|
1.0
|
C
|
D:GLY174
|
3.3
|
0.0
|
1.0
|
C
|
C:GLY174
|
3.3
|
0.8
|
1.0
|
C
|
C:GLY283
|
3.4
|
0.6
|
1.0
|
C
|
D:GLY283
|
3.6
|
0.9
|
1.0
|
C
|
D:ILE173
|
4.0
|
0.6
|
1.0
|
C
|
C:VAL282
|
4.0
|
0.5
|
1.0
|
C
|
C:ILE173
|
4.0
|
0.7
|
1.0
|
CA
|
D:GLY174
|
4.0
|
0.5
|
1.0
|
CA
|
C:GLY283
|
4.1
|
0.7
|
1.0
|
C
|
D:VAL282
|
4.1
|
0.7
|
1.0
|
CA
|
C:GLY174
|
4.1
|
0.6
|
1.0
|
CA
|
D:GLY283
|
4.2
|
0.5
|
1.0
|
O
|
C:TYR175
|
4.2
|
0.7
|
1.0
|
N
|
C:TYR175
|
4.2
|
0.7
|
1.0
|
N
|
D:TYR175
|
4.3
|
0.7
|
1.0
|
O
|
D:TYR175
|
4.3
|
0.3
|
1.0
|
N
|
C:PHE284
|
4.4
|
0.2
|
1.0
|
N
|
D:GLY174
|
4.4
|
0.3
|
1.0
|
N
|
C:GLY283
|
4.5
|
0.3
|
1.0
|
N
|
C:GLY174
|
4.5
|
0.4
|
1.0
|
CA
|
C:TYR175
|
4.5
|
0.5
|
1.0
|
N
|
D:PHE284
|
4.5
|
0.2
|
1.0
|
CA
|
D:TYR175
|
4.6
|
0.3
|
1.0
|
N
|
D:GLY283
|
4.6
|
1.0
|
1.0
|
C
|
C:TYR175
|
4.6
|
0.3
|
1.0
|
CA
|
C:PHE284
|
4.6
|
0.5
|
1.0
|
C
|
D:TYR175
|
4.7
|
0.8
|
1.0
|
CA
|
D:PHE284
|
4.8
|
0.9
|
1.0
|
|
Potassium binding site 5 out
of 6 in 4xdj
Go back to
Potassium Binding Sites List in 4xdj
Potassium binding site 5 out
of 6 in the Crystal Structure of Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2)
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 Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2) within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
C:K602
b:0.6
occ:1.00
|
O
|
C:ILE173
|
2.5
|
0.4
|
1.0
|
O
|
C:THR172
|
2.6
|
0.8
|
1.0
|
O
|
C:THR281
|
2.6
|
0.5
|
1.0
|
O
|
C:VAL282
|
2.7
|
0.8
|
1.0
|
O
|
D:THR172
|
2.8
|
0.6
|
1.0
|
O
|
D:THR281
|
2.8
|
0.2
|
1.0
|
O
|
D:VAL282
|
2.8
|
0.1
|
1.0
|
O
|
D:ILE173
|
2.9
|
0.4
|
1.0
|
C
|
C:ILE173
|
3.2
|
0.7
|
1.0
|
K
|
C:K601
|
3.3
|
0.5
|
1.0
|
K
|
C:K603
|
3.4
|
0.5
|
1.0
|
C
|
C:VAL282
|
3.4
|
0.5
|
1.0
|
C
|
D:VAL282
|
3.6
|
0.7
|
1.0
|
C
|
D:ILE173
|
3.6
|
0.6
|
1.0
|
C
|
C:THR172
|
3.7
|
0.9
|
1.0
|
CA
|
C:ILE173
|
3.7
|
0.7
|
1.0
|
C
|
C:THR281
|
3.7
|
1.0
|
1.0
|
C
|
D:THR281
|
3.9
|
0.2
|
1.0
|
C
|
D:THR172
|
3.9
|
0.2
|
1.0
|
CA
|
C:VAL282
|
3.9
|
0.1
|
1.0
|
CA
|
D:VAL282
|
4.0
|
0.0
|
1.0
|
CA
|
D:ILE173
|
4.1
|
0.3
|
1.0
|
N
|
C:ILE173
|
4.1
|
0.8
|
1.0
|
N
|
C:GLY174
|
4.2
|
0.4
|
1.0
|
N
|
C:VAL282
|
4.3
|
0.0
|
1.0
|
N
|
C:GLY283
|
4.4
|
0.3
|
1.0
|
N
|
D:VAL282
|
4.4
|
0.7
|
1.0
|
N
|
D:ILE173
|
4.5
|
0.2
|
1.0
|
N
|
D:GLY174
|
4.5
|
0.3
|
1.0
|
N
|
D:GLY283
|
4.6
|
1.0
|
1.0
|
O
|
C:GLY174
|
4.7
|
0.2
|
1.0
|
O
|
C:GLY283
|
4.7
|
0.2
|
1.0
|
CA
|
C:GLY174
|
4.7
|
0.6
|
1.0
|
CA
|
C:GLY283
|
4.8
|
0.7
|
1.0
|
O
|
D:GLY174
|
4.8
|
0.6
|
1.0
|
O
|
D:GLY283
|
4.9
|
0.2
|
1.0
|
C
|
C:GLY174
|
5.0
|
0.8
|
1.0
|
CA
|
C:THR281
|
5.0
|
0.3
|
1.0
|
CA
|
D:GLY174
|
5.0
|
0.5
|
1.0
|
CA
|
C:THR172
|
5.0
|
0.7
|
1.0
|
|
Potassium binding site 6 out
of 6 in 4xdj
Go back to
Potassium Binding Sites List in 4xdj
Potassium binding site 6 out
of 6 in the Crystal Structure of Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2)
Mono view
Stereo pair view
|
A full contact list of Potassium with other atoms in the K binding
site number 6 of Crystal Structure of Human Two Pore Domain Potassium Ion Channel TREK2 (K2P10.1) in An Alternate Conformation (Form 2) within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
C:K603
b:0.5
occ:1.00
|
OG1
|
C:THR172
|
2.6
|
0.6
|
1.0
|
O
|
C:THR172
|
2.6
|
0.8
|
1.0
|
O
|
C:THR281
|
2.8
|
0.5
|
1.0
|
O
|
D:THR281
|
2.9
|
0.2
|
1.0
|
OG1
|
D:THR172
|
3.0
|
0.1
|
1.0
|
O
|
D:THR172
|
3.0
|
0.6
|
1.0
|
OG1
|
D:THR281
|
3.0
|
0.6
|
1.0
|
OG1
|
C:THR281
|
3.1
|
0.7
|
1.0
|
CB
|
C:THR172
|
3.3
|
0.1
|
1.0
|
K
|
C:K602
|
3.4
|
0.6
|
1.0
|
C
|
C:THR172
|
3.5
|
0.9
|
1.0
|
CB
|
C:THR281
|
3.5
|
0.3
|
1.0
|
CB
|
D:THR281
|
3.6
|
0.9
|
1.0
|
CB
|
D:THR172
|
3.7
|
0.7
|
1.0
|
C
|
D:THR281
|
3.7
|
0.2
|
1.0
|
C
|
C:THR281
|
3.7
|
1.0
|
1.0
|
C
|
D:THR172
|
3.9
|
0.2
|
1.0
|
CA
|
C:THR172
|
4.0
|
0.7
|
1.0
|
CA
|
C:THR281
|
4.2
|
0.3
|
1.0
|
CA
|
D:THR281
|
4.3
|
1.0
|
1.0
|
CA
|
D:THR172
|
4.4
|
0.3
|
1.0
|
N
|
C:ILE173
|
4.5
|
0.8
|
1.0
|
CG2
|
C:THR172
|
4.6
|
1.0
|
1.0
|
N
|
D:VAL282
|
4.7
|
0.7
|
1.0
|
CG2
|
C:THR281
|
4.7
|
0.6
|
1.0
|
N
|
C:VAL282
|
4.8
|
0.0
|
1.0
|
C4
|
C:TRD604
|
4.8
|
0.8
|
1.0
|
O
|
C:THR171
|
4.8
|
0.7
|
1.0
|
N
|
D:ILE173
|
4.9
|
0.2
|
1.0
|
CG2
|
D:THR281
|
4.9
|
0.0
|
1.0
|
CA
|
C:ILE173
|
4.9
|
0.7
|
1.0
|
CG2
|
D:THR172
|
4.9
|
0.0
|
1.0
|
O
|
D:THR280
|
4.9
|
0.9
|
1.0
|
|
Reference:
A.C.W.Pike,
A.Mackenzie,
C.Mcclenaghan,
P.Aryal,
L.Dong,
A.Quigley,
M.Grieben,
S.Goubin,
S.Mukhopadhyay,
G.F.Ruda,
M.V.Clausen,
L.Cao,
P.E.Brennan,
N.A.Burgess-Brown,
M.S.P.Sansom,
S.J.Tucker,
E.P.Carpenter.
K2P Channel Gating Mechanisms Revealed By Structures of Trek-2 and A Complex with Prozac Science V. 347 2015.
ISSN: ESSN 1095-9203
DOI: 10.1126/SCIENCE.1261512
Page generated: Mon Aug 12 12:28:20 2024
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