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Potassium in PDB 7pxe: CA2+ Bound Drosophila Slo Channel

Other elements in 7pxe:

The structure of CA2+ Bound Drosophila Slo Channel also contains other interesting chemical elements:

Magnesium (Mg) 4 atoms
Calcium (Ca) 8 atoms

Potassium Binding Sites:

The binding sites of Potassium atom in the CA2+ Bound Drosophila Slo Channel (pdb code 7pxe). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 4 binding sites of Potassium where determined in the CA2+ Bound Drosophila Slo Channel, PDB code: 7pxe:
Jump to Potassium binding site number: 1; 2; 3; 4;

Potassium binding site 1 out of 4 in 7pxe

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Potassium binding site 1 out of 4 in the CA2+ Bound Drosophila Slo Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of CA2+ Bound Drosophila Slo Channel within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K1209

b:49.5
occ:0.25
 O C:TYR304 2.9 55.9 1.0
O A:GLY303 2.9 52.2 1.0
O D:GLY303 2.9 53.0 1.0
O A:TYR304 3.0 56.1 1.0
O B:GLY303 3.0 53.4 1.0
O C:GLY303 3.1 52.5 1.0
O B:TYR304 3.1 56.8 1.0
O D:TYR304 3.1 56.9 1.0
K A:K1210 3.5 48.9 0.2
C C:TYR304 3.6 55.9 1.0
C A:TYR304 3.6 56.1 1.0
C D:TYR304 3.7 56.9 1.0
C B:TYR304 3.7 56.8 1.0
C A:GLY303 4.1 52.2 1.0
C D:GLY303 4.1 53.0 1.0
C B:GLY303 4.2 53.4 1.0
CA C:TYR304 4.2 55.9 1.0
C C:GLY303 4.2 52.5 1.0
CA A:TYR304 4.2 56.1 1.0
N A:GLY305 4.3 60.1 1.0
CA B:TYR304 4.3 56.8 1.0
N C:GLY305 4.3 60.5 1.0
CA D:TYR304 4.3 56.9 1.0
N D:GLY305 4.4 60.5 1.0
N B:GLY305 4.5 60.6 1.0
CA A:GLY305 4.5 60.1 1.0
CA C:GLY305 4.6 60.5 1.0
CA D:GLY305 4.7 60.5 1.0
N A:TYR304 4.7 56.1 1.0
N C:TYR304 4.7 55.9 1.0
O C:HOH1332 4.7 65.4 1.0
N D:TYR304 4.7 56.9 1.0
CA B:GLY305 4.8 60.6 1.0
N B:TYR304 4.8 56.8 1.0
O A:HOH1328 4.9 64.8 1.0
O B:HOH1332 5.0 66.3 1.0

Potassium binding site 2 out of 4 in 7pxe

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Potassium binding site 2 out of 4 in the CA2+ Bound Drosophila Slo Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of CA2+ Bound Drosophila Slo Channel within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K1210

b:48.9
occ:0.25
 O B:VAL302 2.7 53.1 1.0
O A:GLY303 2.7 52.2 1.0
O C:GLY303 2.7 52.5 1.0
O D:VAL302 2.8 52.8 1.0
O C:VAL302 2.8 52.2 1.0
O D:GLY303 2.8 53.0 1.0
O A:VAL302 2.8 51.9 1.0
O B:GLY303 2.8 53.4 1.0
K A:K1211 3.2 44.8 0.5
K A:K1209 3.5 49.5 0.2
C A:GLY303 3.6 52.2 1.0
C C:GLY303 3.6 52.5 1.0
C D:GLY303 3.6 53.0 1.0
C B:GLY303 3.7 53.4 1.0
C B:VAL302 3.8 53.1 1.0
C D:VAL302 3.8 52.8 1.0
C A:VAL302 3.9 51.9 1.0
C C:VAL302 3.9 52.2 1.0
CA D:GLY303 3.9 53.0 1.0
CA A:GLY303 3.9 52.2 1.0
CA B:GLY303 4.0 53.4 1.0
CA C:GLY303 4.1 52.5 1.0
N D:GLY303 4.3 53.0 1.0
N B:GLY303 4.4 53.4 1.0
N A:GLY303 4.4 52.2 1.0
N C:GLY303 4.5 52.5 1.0
N C:TYR304 4.7 55.9 1.0
N A:TYR304 4.7 56.1 1.0
N B:TYR304 4.8 56.8 1.0
N D:TYR304 4.8 56.9 1.0

Potassium binding site 3 out of 4 in 7pxe

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Potassium binding site 3 out of 4 in the CA2+ Bound Drosophila Slo Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of CA2+ Bound Drosophila Slo Channel within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K1211

b:44.8
occ:0.50
 O A:THR301 2.8 56.2 1.0
O C:VAL302 2.8 52.2 1.0
O D:THR301 2.8 56.7 1.0
O B:THR301 2.9 56.7 1.0
O C:THR301 2.9 56.4 1.0
O A:VAL302 3.0 51.9 1.0
O B:VAL302 3.1 53.1 1.0
O D:VAL302 3.2 52.8 1.0
K A:K1210 3.2 48.9 0.2
C C:VAL302 3.5 52.2 1.0
C A:VAL302 3.6 51.9 1.0
K A:K1212 3.6 51.5 0.5
C B:VAL302 3.8 53.1 1.0
C D:VAL302 3.8 52.8 1.0
C A:THR301 3.8 56.2 1.0
C D:THR301 3.9 56.7 1.0
CA C:VAL302 3.9 52.2 1.0
C B:THR301 3.9 56.7 1.0
C C:THR301 3.9 56.4 1.0
CA A:VAL302 4.0 51.9 1.0
CA B:VAL302 4.1 53.1 1.0
CA D:VAL302 4.1 52.8 1.0
N A:VAL302 4.3 51.9 1.0
N C:VAL302 4.3 52.2 1.0
N D:VAL302 4.4 52.8 1.0
N B:VAL302 4.4 53.1 1.0
N C:GLY303 4.5 52.5 1.0
N A:GLY303 4.6 52.2 1.0
N D:GLY303 4.7 53.0 1.0
N B:GLY303 4.7 53.4 1.0
CA D:THR301 5.0 56.7 1.0
CA C:GLY303 5.0 52.5 1.0
CA A:THR301 5.0 56.2 1.0
CA A:GLY303 5.0 52.2 1.0

Potassium binding site 4 out of 4 in 7pxe

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Potassium binding site 4 out of 4 in the CA2+ Bound Drosophila Slo Channel


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 4 of CA2+ Bound Drosophila Slo Channel within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K1212

b:51.5
occ:0.50
 O C:THR301 2.9 56.4 1.0
O A:THR301 2.9 56.2 1.0
O D:THR301 3.0 56.7 1.0
O B:THR301 3.0 56.7 1.0
OG1 D:THR301 3.0 56.7 1.0
OG1 A:THR301 3.1 56.2 1.0
OG1 B:THR301 3.1 56.7 1.0
OG1 C:THR301 3.2 56.4 1.0
CB D:THR301 3.5 56.7 1.0
CB A:THR301 3.6 56.2 1.0
K A:K1211 3.6 44.8 0.5
CB B:THR301 3.7 56.7 1.0
CB C:THR301 3.8 56.4 1.0
C A:THR301 4.0 56.2 1.0
C C:THR301 4.0 56.4 1.0
C D:THR301 4.0 56.7 1.0
C B:THR301 4.0 56.7 1.0
CA D:THR301 4.4 56.7 1.0
CA A:THR301 4.4 56.2 1.0
CA B:THR301 4.5 56.7 1.0
CA C:THR301 4.5 56.4 1.0
CG2 D:THR301 4.7 56.7 1.0
CG2 A:THR301 4.8 56.2 1.0
CG2 B:THR301 4.9 56.7 1.0

Reference:

T.Raisch, A.Brockmann, U.Ebbinghaus-Kintscher, J.Freigang, O.Gutbrod, J.Kubicek, B.Maertens, O.Hofnagel, S.Raunser. Small Molecule Modulation of the Drosophila Slo Channel Elucidated By Cryo-Em To Be Published.
DOI: 10.1038/S41467-021-27435-W
Page generated: Sat Aug 9 14:05:05 2025

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