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Potassium in PDB 4rdq: Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium

Protein crystallography data

The structure of Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium, PDB code: 4rdq was solved by V.K.Dickson, L.Pedi, S.B.Long, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 39.89 / 2.85
Space group P 1 21 1
Cell size a, b, c (Å), α, β, γ (°) 98.540, 242.904, 172.757, 90.00, 93.68, 90.00
R / Rfree (%) 21.7 / 23.4

Other elements in 4rdq:

The structure of Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium also contains other interesting chemical elements:

Chlorine (Cl) 15 atoms
Calcium (Ca) 5 atoms

Potassium Binding Sites:

The binding sites of Potassium atom in the Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium (pdb code 4rdq). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 5 binding sites of Potassium where determined in the Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium, PDB code: 4rdq:
Jump to Potassium binding site number: 1; 2; 3; 4; 5;

Potassium binding site 1 out of 5 in 4rdq

Go back to Potassium Binding Sites List in 4rdq
Potassium binding site 1 out of 5 in the Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K506

b:87.9
occ:1.00
 OH A:TYR245 2.8 96.3 1.0
O E:LEU14 2.9 90.1 1.0
OG E:SER18 3.2 94.4 1.0
OE2 A:GLU292 3.4 87.8 1.0
OE2 A:GLU35 3.4 85.2 1.0
C E:LEU14 4.0 82.6 1.0
CZ A:TYR245 4.1 95.3 1.0
CD A:GLU292 4.2 82.3 1.0
N E:SER18 4.3 78.4 1.0
OE1 A:GLU292 4.3 86.6 1.0
CA E:GLY15 4.4 61.8 1.0
N E:PHE17 4.4 71.1 1.0
CD A:GLU35 4.4 83.0 1.0
CG A:GLU35 4.4 73.4 1.0
NZ A:LYS289 4.5 58.8 1.0
CB E:SER18 4.5 82.3 1.0
N E:THR16 4.5 74.9 1.0
C E:GLY15 4.6 64.0 1.0
N E:GLY15 4.7 60.8 1.0
CB E:PHE17 4.7 65.1 1.0
O E:ARG13 4.7 81.0 1.0
CE A:LYS289 4.7 48.9 1.0
CE1 A:TYR245 4.8 92.3 1.0
CA E:PHE17 4.9 68.3 1.0
C31 E:C6N507 5.0 0.9 1.0

Potassium binding site 2 out of 5 in 4rdq

Go back to Potassium Binding Sites List in 4rdq
Potassium binding site 2 out of 5 in the Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium within 5.0Å range:
probe atom residue distance (Å) B Occ
B:K506

b:88.6
occ:1.00
 OH B:TYR245 2.9 0.2 1.0
O A:LEU14 2.9 89.2 1.0
OG A:SER18 3.2 87.6 1.0
OE2 B:GLU292 3.3 94.1 1.0
OE2 B:GLU35 3.4 91.6 1.0
C A:LEU14 4.0 79.6 1.0
CD B:GLU292 4.2 89.8 1.0
CZ B:TYR245 4.2 99.4 1.0
N A:SER18 4.3 75.8 1.0
OE1 B:GLU292 4.3 93.8 1.0
CA A:GLY15 4.3 71.0 1.0
N A:PHE17 4.4 71.6 1.0
CD B:GLU35 4.4 91.1 1.0
CG B:GLU35 4.4 82.5 1.0
CB A:SER18 4.5 76.4 1.0
N A:THR16 4.5 82.2 1.0
NZ B:LYS289 4.5 60.4 1.0
C A:GLY15 4.6 73.2 1.0
N A:GLY15 4.6 68.6 1.0
CB A:PHE17 4.7 64.6 1.0
O A:ARG13 4.7 74.4 1.0
CE B:LYS289 4.8 52.7 1.0
CE1 B:TYR245 4.8 95.7 1.0
CA A:PHE17 4.9 69.3 1.0
C31 A:C6N507 5.0 0.5 1.0
CA A:SER18 5.0 75.3 1.0

Potassium binding site 3 out of 5 in 4rdq

Go back to Potassium Binding Sites List in 4rdq
Potassium binding site 3 out of 5 in the Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K506

b:88.5
occ:1.00
 OH C:TYR245 2.8 0.7 1.0
O B:LEU14 2.9 83.7 1.0
OG B:SER18 3.2 99.2 1.0
OE2 C:GLU292 3.4 86.5 1.0
OE2 C:GLU35 3.5 89.7 1.0
C B:LEU14 4.0 76.2 1.0
CZ C:TYR245 4.2 0.1 1.0
CD C:GLU292 4.2 82.6 1.0
N B:SER18 4.2 84.6 1.0
OE1 C:GLU292 4.3 87.3 1.0
CA B:GLY15 4.3 72.5 1.0
N B:PHE17 4.3 71.4 1.0
CD C:GLU35 4.4 88.6 1.0
CB B:SER18 4.4 86.9 1.0
N B:THR16 4.5 86.2 1.0
CG C:GLU35 4.5 79.9 1.0
NZ C:LYS289 4.5 65.1 1.0
C B:GLY15 4.6 75.4 1.0
N B:GLY15 4.6 69.9 1.0
CB B:PHE17 4.6 65.3 1.0
O B:ARG13 4.7 66.5 1.0
CE C:LYS289 4.8 57.6 1.0
CE1 C:TYR245 4.8 1.0 1.0
CA B:PHE17 4.9 69.1 1.0
CA B:SER18 4.9 85.6 1.0
C31 B:C6N507 5.0 0.1 1.0

Potassium binding site 4 out of 5 in 4rdq

Go back to Potassium Binding Sites List in 4rdq
Potassium binding site 4 out of 5 in the Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 4 of Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K507

b:86.6
occ:1.00
 OH D:TYR245 2.9 96.0 1.0
O C:LEU14 2.9 80.0 1.0
OG C:SER18 3.1 93.9 1.0
OE2 D:GLU292 3.3 84.0 1.0
OE2 D:GLU35 3.5 87.0 1.0
C C:LEU14 4.0 72.9 1.0
CD D:GLU292 4.2 79.3 1.0
N C:SER18 4.2 79.8 1.0
CZ D:TYR245 4.2 95.2 1.0
N C:PHE17 4.2 64.5 1.0
CA C:GLY15 4.3 59.9 1.0
OE1 D:GLU292 4.3 85.5 1.0
N C:THR16 4.4 72.7 1.0
CB C:SER18 4.4 82.4 1.0
CD D:GLU35 4.5 85.5 1.0
C C:GLY15 4.5 63.5 1.0
NZ D:LYS289 4.5 54.9 1.0
CG D:GLU35 4.5 76.5 1.0
N C:GLY15 4.6 58.7 1.0
CB C:PHE17 4.6 57.7 1.0
O C:ARG13 4.7 70.2 1.0
CE D:LYS289 4.8 48.6 1.0
CA C:PHE17 4.8 61.4 1.0
CE1 D:TYR245 4.8 91.8 1.0
CA C:SER18 4.9 81.6 1.0
C C:PHE17 5.0 62.1 1.0

Potassium binding site 5 out of 5 in 4rdq

Go back to Potassium Binding Sites List in 4rdq
Potassium binding site 5 out of 5 in the Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 5 of Calcium-Activated Chloride Channel Bestrophin-1, From Chicken, in Complex with Fab Antibody Fragments, Chloride and Calcium within 5.0Å range:
probe atom residue distance (Å) B Occ
E:K506

b:79.4
occ:1.00
 O D:LEU14 2.8 81.1 1.0
OH E:TYR245 2.9 90.3 1.0
OG D:SER18 3.1 94.0 1.0
OE2 E:GLU292 3.4 78.5 1.0
OE2 E:GLU35 3.5 81.8 1.0
C D:LEU14 3.9 74.9 1.0
N D:SER18 4.2 79.9 1.0
CZ E:TYR245 4.2 90.2 1.0
CA D:GLY15 4.2 66.3 1.0
CD E:GLU292 4.2 74.2 1.0
N D:PHE17 4.3 64.5 1.0
OE1 E:GLU292 4.3 80.1 1.0
N D:THR16 4.4 73.1 1.0
CB D:SER18 4.4 81.4 1.0
CD E:GLU35 4.4 79.6 1.0
C D:GLY15 4.5 69.8 1.0
CG E:GLU35 4.5 70.8 1.0
N D:GLY15 4.5 64.7 1.0
NZ E:LYS289 4.6 56.4 1.0
CB D:PHE17 4.6 60.2 1.0
O D:ARG13 4.7 72.5 1.0
CE E:LYS289 4.8 50.1 1.0
CE1 E:TYR245 4.9 87.3 1.0
CA D:PHE17 4.9 62.4 1.0
CA D:SER18 4.9 80.6 1.0
C31 D:C6N506 4.9 0.2 1.0

Reference:

V.K.Dickson, L.Pedi, S.B.Long. Structure and Insights Into the Function of A CA2+ -Activated Cl- Channel Nature 2014.
ISSN: ESSN 1476-4687
DOI: 10.1038/NATURE13913
Page generated: Mon Aug 12 11:58:32 2024

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