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Potassium in PDB 9dic: Apo Aplysia SLO1 - R196Q

Potassium Binding Sites:

The binding sites of Potassium atom in the Apo Aplysia SLO1 - R196Q (pdb code 9dic). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 5 binding sites of Potassium where determined in the Apo Aplysia SLO1 - R196Q, PDB code: 9dic:
Jump to Potassium binding site number: 1; 2; 3; 4; 5;

Potassium binding site 1 out of 5 in 9dic

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Potassium binding site 1 out of 5 in the Apo Aplysia SLO1 - R196Q


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Apo Aplysia SLO1 - R196Q within 5.0Å range:
probe atom residue distance (Å) B Occ
B:K1101

b:50.4
occ:1.00
 O C:THR276 2.4 89.8 1.0
O B:THR276 2.7 89.8 1.0
O D:THR276 2.8 89.8 1.0
O A:THR276 3.0 89.8 1.0
O C:VAL277 3.1 91.9 1.0
O D:VAL277 3.2 91.9 1.0
K C:K1103 3.4 58.9 1.0
O B:VAL277 3.4 91.9 1.0
K C:K1104 3.5 49.4 1.0
C C:THR276 3.6 78.9 1.0
C C:VAL277 3.6 76.5 1.0
O A:VAL277 3.6 91.9 1.0
C B:THR276 3.8 78.9 1.0
C D:VAL277 3.8 76.5 1.0
CA C:VAL277 3.9 68.8 1.0
C D:THR276 3.9 78.9 1.0
C B:VAL277 3.9 76.5 1.0
CA D:VAL277 4.1 68.8 1.0
N C:VAL277 4.2 66.7 1.0
C A:THR276 4.2 78.9 1.0
C A:VAL277 4.2 76.5 1.0
CA B:VAL277 4.3 68.8 1.0
N C:GLY278 4.4 63.5 1.0
N D:VAL277 4.5 66.7 1.0
N B:VAL277 4.5 66.7 1.0
CA A:VAL277 4.5 68.8 1.0
CA C:THR276 4.7 74.2 1.0
N B:GLY278 4.7 63.5 1.0
N D:GLY278 4.8 63.5 1.0
N A:VAL277 4.8 66.7 1.0
CA C:GLY278 4.9 66.6 1.0
CA B:THR276 4.9 74.2 1.0
CB C:THR276 4.9 74.6 1.0
CB B:THR276 4.9 74.6 1.0

Potassium binding site 2 out of 5 in 9dic

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Potassium binding site 2 out of 5 in the Apo Aplysia SLO1 - R196Q


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Apo Aplysia SLO1 - R196Q within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K1101

b:90.6
occ:1.00
 O C:GLY280 4.3 103.2 1.0
O D:GLY280 4.5 103.2 1.0
O D:PHE279 4.6 94.6 1.0
O C:PHE279 4.6 94.6 1.0
O B:GLY280 4.7 103.2 1.0
K C:K1102 4.7 56.0 1.0
O A:PHE279 4.9 94.6 1.0
C C:GLY280 4.9 97.4 1.0
O B:PHE279 4.9 94.6 1.0
O A:GLY280 4.9 103.2 1.0
C D:GLY280 5.0 97.4 1.0

Potassium binding site 3 out of 5 in 9dic

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Potassium binding site 3 out of 5 in the Apo Aplysia SLO1 - R196Q


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Apo Aplysia SLO1 - R196Q within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K1102

b:56.0
occ:1.00
 O C:PHE279 2.8 94.6 1.0
O D:PHE279 2.9 94.6 1.0
O B:PHE279 3.0 94.6 1.0
O A:PHE279 3.2 94.6 1.0
O C:GLY278 3.3 84.7 1.0
O B:GLY278 3.4 84.7 1.0
C C:PHE279 3.4 84.3 1.0
O D:GLY278 3.5 84.7 1.0
O A:GLY278 3.6 84.7 1.0
C B:PHE279 3.6 84.3 1.0
C D:PHE279 3.6 84.3 1.0
K C:K1103 3.7 58.9 1.0
C A:PHE279 3.9 84.3 1.0
CA C:PHE279 4.1 79.1 1.0
N C:GLY280 4.1 89.6 1.0
CA D:PHE279 4.2 79.1 1.0
N B:GLY280 4.3 89.6 1.0
CA B:PHE279 4.3 79.1 1.0
C C:GLY278 4.4 73.5 1.0
N D:GLY280 4.4 89.6 1.0
CA C:GLY280 4.5 93.3 1.0
CA A:PHE279 4.5 79.1 1.0
C B:GLY278 4.5 73.5 1.0
CA B:GLY280 4.5 93.3 1.0
C D:GLY278 4.5 73.5 1.0
N A:GLY280 4.6 89.6 1.0
C A:GLY278 4.7 73.5 1.0
N C:PHE279 4.7 78.3 1.0
CA D:GLY280 4.7 93.3 1.0
K C:K1101 4.7 90.6 1.0
CA A:GLY280 4.8 93.3 1.0
N D:PHE279 4.9 78.3 1.0
N B:PHE279 4.9 78.3 1.0

Potassium binding site 4 out of 5 in 9dic

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Potassium binding site 4 out of 5 in the Apo Aplysia SLO1 - R196Q


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 4 of Apo Aplysia SLO1 - R196Q within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K1103

b:58.9
occ:1.00
 O C:GLY278 2.6 84.7 1.0
O B:GLY278 2.7 84.7 1.0
O D:GLY278 2.8 84.7 1.0
O C:VAL277 2.9 91.9 1.0
O D:VAL277 3.0 91.9 1.0
O A:GLY278 3.0 84.7 1.0
O B:VAL277 3.2 91.9 1.0
O A:VAL277 3.3 91.9 1.0
K B:K1101 3.4 50.4 1.0
C C:GLY278 3.4 73.5 1.0
C B:GLY278 3.6 73.5 1.0
C D:GLY278 3.6 73.5 1.0
K C:K1102 3.7 56.0 1.0
CA C:GLY278 3.9 66.6 1.0
C A:GLY278 3.9 73.5 1.0
C C:VAL277 3.9 76.5 1.0
CA B:GLY278 4.1 66.6 1.0
C D:VAL277 4.1 76.5 1.0
CA D:GLY278 4.2 66.6 1.0
C B:VAL277 4.2 76.5 1.0
N C:GLY278 4.4 63.5 1.0
N C:PHE279 4.4 78.3 1.0
C A:VAL277 4.4 76.5 1.0
CA A:GLY278 4.4 66.6 1.0
N D:PHE279 4.6 78.3 1.0
N D:GLY278 4.6 63.5 1.0
N B:GLY278 4.6 63.5 1.0
N B:PHE279 4.6 78.3 1.0
CA C:PHE279 4.7 79.1 1.0
N A:GLY278 4.8 63.5 1.0
N A:PHE279 4.9 78.3 1.0
CA D:PHE279 4.9 79.1 1.0

Potassium binding site 5 out of 5 in 9dic

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Potassium binding site 5 out of 5 in the Apo Aplysia SLO1 - R196Q


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 5 of Apo Aplysia SLO1 - R196Q within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K1104

b:49.4
occ:1.00
 OG1 C:THR276 2.9 84.8 1.0
OG1 D:THR276 2.9 84.8 1.0
O C:THR276 3.0 89.8 1.0
O D:THR276 3.1 89.8 1.0
OG1 B:THR276 3.1 84.8 1.0
OG1 A:THR276 3.2 84.8 1.0
O B:THR276 3.2 89.8 1.0
O A:THR276 3.3 89.8 1.0
CB C:THR276 3.5 74.6 1.0
K B:K1101 3.5 50.4 1.0
CB D:THR276 3.6 74.6 1.0
CB B:THR276 3.7 74.6 1.0
CB A:THR276 3.8 74.6 1.0
C C:THR276 3.9 78.9 1.0
C D:THR276 4.0 78.9 1.0
C B:THR276 4.1 78.9 1.0
C A:THR276 4.2 78.9 1.0
CA C:THR276 4.3 74.2 1.0
CA D:THR276 4.4 74.2 1.0
CA B:THR276 4.5 74.2 1.0
CG2 C:THR276 4.6 77.5 1.0
CA A:THR276 4.7 74.2 1.0
CG2 D:THR276 4.8 77.5 1.0
CG2 B:THR276 4.8 77.5 1.0
N C:VAL277 5.0 66.7 1.0
N D:VAL277 5.0 66.7 1.0
CG2 A:THR276 5.0 77.5 1.0

Reference:

G.F.Contreras, R.Shen, R.Latorre, E.Perozo. Structural Basis of Voltage-Dependent Gating in Bk Channels Nat Commun 2025.
ISSN: ESSN 2041-1723
DOI: 10.1038/S41467-025-60639-Y
Page generated: Sat Aug 9 18:40:56 2025

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