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Potassium in PDB 7n9k: KIRBAC3.1 L124M Mutant

Protein crystallography data

The structure of KIRBAC3.1 L124M Mutant, PDB code: 7n9k was solved by T.A.Black, J.M.Gulbis, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 42.08 / 2.72
Space group P 4 21 2
Cell size a, b, c (Å), α, β, γ (°) 106.577, 106.577, 89.597, 90, 90, 90
R / Rfree (%) 21.8 / 25

Potassium Binding Sites:

The binding sites of Potassium atom in the KIRBAC3.1 L124M Mutant (pdb code 7n9k). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 7 binding sites of Potassium where determined in the KIRBAC3.1 L124M Mutant, PDB code: 7n9k:
Jump to Potassium binding site number: 1; 2; 3; 4; 5; 6; 7;

Potassium binding site 1 out of 7 in 7n9k

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Potassium binding site 1 out of 7 in the KIRBAC3.1 L124M Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of KIRBAC3.1 L124M Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K506

b:59.1
occ:0.18
O A:GLY98 2.7 53.4 1.0
O A:TYR99 2.8 59.1 1.0
C A:TYR99 3.6 57.6 1.0
C A:GLY98 3.9 49.9 1.0
HA A:TYR99 4.0 76.7 1.0
CA A:TYR99 4.3 63.7 1.0
HA2 A:GLY100 4.3 95.5 1.0
HA3 A:GLY100 4.3 95.5 1.0
N A:GLY100 4.4 66.9 1.0
N A:TYR99 4.6 55.7 1.0
CA A:GLY100 4.6 79.4 1.0
HA3 A:GLY98 4.8 60.6 1.0

Potassium binding site 2 out of 7 in 7n9k

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Potassium binding site 2 out of 7 in the KIRBAC3.1 L124M Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of KIRBAC3.1 L124M Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K507

b:57.6
occ:0.14
O A:THR96 2.7 55.1 1.0
O A:ILE97 2.8 57.4 1.0
K A:K508 3.4 57.2 0.2
HA A:ILE97 3.5 65.9 1.0
C A:ILE97 3.5 54.6 1.0
C A:THR96 3.8 52.3 1.0
CA A:ILE97 4.0 54.7 1.0
HA3 A:GLY98 4.4 60.6 1.0
N A:ILE97 4.4 53.5 1.0
N A:GLY98 4.5 48.1 1.0
HB A:THR96 4.6 70.0 1.0
HG1 A:THR96 4.6 74.0 1.0
CA A:GLY98 4.9 50.3 1.0

Potassium binding site 3 out of 7 in 7n9k

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Potassium binding site 3 out of 7 in the KIRBAC3.1 L124M Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of KIRBAC3.1 L124M Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K508

b:57.2
occ:0.18
HG1 A:THR96 2.4 74.0 1.0
O A:THR96 2.9 55.1 1.0
OG1 A:THR96 2.9 61.5 1.0
HB A:THR96 3.2 70.0 1.0
K A:K507 3.4 57.6 0.1
CB A:THR96 3.6 58.1 1.0
C A:THR96 3.8 52.3 1.0
CA A:THR96 4.4 51.2 1.0
K A:K509 4.4 107.5 0.2
HA A:ILE97 4.5 65.9 1.0
O A:ALA95 4.6 54.8 1.0
HG21 A:THR96 4.8 57.0 1.0
CG2 A:THR96 4.8 47.3 1.0
N A:ILE97 4.8 53.5 1.0
HA A:THR96 5.0 61.7 1.0

Potassium binding site 4 out of 7 in 7n9k

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Potassium binding site 4 out of 7 in the KIRBAC3.1 L124M Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 4 of KIRBAC3.1 L124M Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K509

b:107.5
occ:0.25
K A:K511 3.2 85.1 0.7
OG1 A:THR96 4.3 61.5 1.0
K A:K508 4.4 57.2 0.2
HG1 A:THR96 4.5 74.0 1.0
H41 A:OCT505 4.5 78.0 1.0
H42 A:OCT505 4.6 78.0 1.0

Potassium binding site 5 out of 7 in 7n9k

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Potassium binding site 5 out of 7 in the KIRBAC3.1 L124M Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 5 of KIRBAC3.1 L124M Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K510

b:68.4
occ:0.25
K A:K512 4.2 81.2 0.8
CG A:TYR132 4.7 39.6 1.0
CD1 A:TYR132 4.7 41.3 1.0
CD2 A:TYR132 4.8 38.2 1.0
CE1 A:TYR132 4.9 32.8 1.0
HB2 A:TYR132 4.9 39.6 1.0
CE2 A:TYR132 4.9 32.2 1.0
CZ A:TYR132 5.0 35.7 1.0
HD1 A:TYR132 5.0 49.8 1.0

Potassium binding site 6 out of 7 in 7n9k

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Potassium binding site 6 out of 7 in the KIRBAC3.1 L124M Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 6 of KIRBAC3.1 L124M Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K511

b:85.1
occ:0.68
K A:K509 3.2 107.5 0.2
HG21 A:THR96 3.6 57.0 1.0
SD A:MET124 3.7 76.9 1.0
HG23 A:THR96 3.8 57.0 1.0
HE1 A:MET124 3.9 92.3 1.0
OG1 A:THR96 4.0 61.5 1.0
CG2 A:THR96 4.1 47.3 1.0
CE A:MET124 4.4 76.7 1.0
H42 A:OCT505 4.4 78.0 1.0
H31 A:OCT505 4.5 70.9 1.0
O A:ALA95 4.5 54.8 1.0
H32 A:OCT505 4.5 70.9 1.0
HG2 A:MET121 4.6 78.1 0.5
HG1 A:THR96 4.6 74.0 1.0
CB A:THR96 4.7 58.1 1.0
HG3 A:MET121 4.7 78.1 0.5
H41 A:OCT505 4.8 78.0 1.0
HE2 A:MET121 4.8 69.7 0.5
C3 A:OCT505 4.9 58.9 1.0
C4 A:OCT505 4.9 64.8 1.0
HE2 A:MET124 5.0 92.3 1.0
HG22 A:THR96 5.0 57.0 1.0

Potassium binding site 7 out of 7 in 7n9k

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Potassium binding site 7 out of 7 in the KIRBAC3.1 L124M Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 7 of KIRBAC3.1 L124M Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K512

b:81.2
occ:0.85
H82 A:OCT505 2.8 61.0 1.0
HB1 A:ALA128 3.2 47.3 1.0
H81 A:OCT505 3.3 61.0 1.0
C8 A:OCT505 3.3 50.6 1.0
HB2 A:TYR132 3.9 39.6 1.0
CB A:ALA128 4.2 39.2 1.0
K A:K510 4.2 68.4 0.2
HB3 A:ALA128 4.4 47.3 1.0
O A:ALA128 4.6 47.5 1.0
HB2 A:ALA128 4.7 47.3 1.0
C7 A:OCT505 4.7 46.7 1.0
HD1 A:TYR132 4.7 49.8 1.0
C A:ALA128 4.8 44.3 1.0
CB A:TYR132 4.8 32.8 1.0
H71 A:OCT505 4.9 56.2 1.0
HB3 A:TYR132 5.0 39.6 1.0
CA A:ALA128 5.0 40.4 1.0

Reference:

J.M.Gulbis, K.A.Black. Ion Currents Through Kir Potassium Channels Are Gated By Anionic Lipids. Nat Commun 2021.
ISSN: ESSN 2041-1723
Page generated: Mon Aug 12 19:28:58 2024

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