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Potassium in PDB 5vk6: Open Conformation of Kcsa Non-Inactivating E71A Mutant

Protein crystallography data

The structure of Open Conformation of Kcsa Non-Inactivating E71A Mutant, PDB code: 5vk6 was solved by L.G.Cuello, E.Perozo, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 26.09 / 2.25
Space group I 4
Cell size a, b, c (Å), α, β, γ (°) 156.544, 156.544, 74.618, 90.00, 90.00, 90.00
R / Rfree (%) 18.6 / 21.3

Potassium Binding Sites:

The binding sites of Potassium atom in the Open Conformation of Kcsa Non-Inactivating E71A Mutant (pdb code 5vk6). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 7 binding sites of Potassium where determined in the Open Conformation of Kcsa Non-Inactivating E71A Mutant, PDB code: 5vk6:
Jump to Potassium binding site number: 1; 2; 3; 4; 5; 6; 7;

Potassium binding site 1 out of 7 in 5vk6

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Potassium binding site 1 out of 7 in the Open Conformation of Kcsa Non-Inactivating E71A Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Open Conformation of Kcsa Non-Inactivating E71A Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K2003

b:0.2
occ:0.25
O C:HOH2119 4.0 80.7 1.0

Potassium binding site 2 out of 7 in 5vk6

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Potassium binding site 2 out of 7 in the Open Conformation of Kcsa Non-Inactivating E71A Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Open Conformation of Kcsa Non-Inactivating E71A Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K2004

b:47.7
occ:0.25
OG1 C:THR75 2.9 40.8 1.0
O C:THR75 3.1 40.5 1.0
K C:K2005 3.4 42.7 0.2
CB C:THR75 3.4 43.1 1.0
C C:THR75 3.9 40.5 1.0
CA C:THR75 4.3 36.4 1.0
CG2 C:THR75 4.6 53.8 1.0
N C:VAL76 4.8 42.7 1.0

Potassium binding site 3 out of 7 in 5vk6

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Potassium binding site 3 out of 7 in the Open Conformation of Kcsa Non-Inactivating E71A Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Open Conformation of Kcsa Non-Inactivating E71A Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K2005

b:42.7
occ:0.25
O C:THR75 2.7 40.5 1.0
O C:VAL76 2.9 35.8 1.0
K C:K2006 3.2 41.3 0.2
K C:K2004 3.4 47.7 0.2
C C:VAL76 3.7 35.5 1.0
C C:THR75 3.9 40.5 1.0
CA C:VAL76 4.1 32.8 1.0
N C:VAL76 4.5 42.7 1.0
N C:GLY77 4.6 39.1 1.0
CA C:GLY77 4.9 37.6 1.0

Potassium binding site 4 out of 7 in 5vk6

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Potassium binding site 4 out of 7 in the Open Conformation of Kcsa Non-Inactivating E71A Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 4 of Open Conformation of Kcsa Non-Inactivating E71A Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K2006

b:41.3
occ:0.25
O C:GLY77 2.8 34.7 1.0
O C:VAL76 2.9 35.8 1.0
K C:K2005 3.2 42.7 0.2
K C:K2007 3.3 39.6 0.2
C C:GLY77 3.6 37.0 1.0
C C:VAL76 4.1 35.5 1.0
CA C:GLY77 4.1 37.6 1.0
N C:TYR78 4.5 34.7 1.0
N C:GLY77 4.6 39.1 1.0
CA C:TYR78 4.8 33.0 1.0

Potassium binding site 5 out of 7 in 5vk6

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Potassium binding site 5 out of 7 in the Open Conformation of Kcsa Non-Inactivating E71A Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 5 of Open Conformation of Kcsa Non-Inactivating E71A Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K2007

b:39.6
occ:0.25
O C:TYR78 2.9 32.0 1.0
O C:GLY77 3.1 34.7 1.0
K C:K2006 3.3 41.3 0.2
C C:TYR78 3.5 35.1 1.0
CA C:TYR78 4.1 33.0 1.0
C C:GLY77 4.2 37.0 1.0
N C:GLY79 4.3 30.5 1.0
K C:K2008 4.5 87.9 0.2
CA C:GLY79 4.6 28.1 1.0
N C:TYR78 4.7 34.7 1.0

Potassium binding site 6 out of 7 in 5vk6

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Potassium binding site 6 out of 7 in the Open Conformation of Kcsa Non-Inactivating E71A Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 6 of Open Conformation of Kcsa Non-Inactivating E71A Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K2008

b:87.9
occ:0.25
K C:K2009 2.9 63.6 0.2
O C:HOH2118 4.0 64.0 1.0
O C:TYR78 4.2 32.0 1.0
K C:K2007 4.5 39.6 0.2
O C:GLY79 4.7 32.4 1.0

Potassium binding site 7 out of 7 in 5vk6

Go back to Potassium Binding Sites List in 5vk6
Potassium binding site 7 out of 7 in the Open Conformation of Kcsa Non-Inactivating E71A Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 7 of Open Conformation of Kcsa Non-Inactivating E71A Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
C:K2009

b:63.6
occ:0.25
K C:K2008 2.9 87.9 0.2
O C:HOH2118 3.3 64.0 1.0

Reference:

L.G.Cuello, D.M.Cortes, E.Perozo. The Gating Cycle of A K+ Channel at Atomic Resolution. Elife V. 6 2017.
ISSN: ESSN 2050-084X
PubMed: 29165243
DOI: 10.7554/ELIFE.28032
Page generated: Mon Dec 14 00:10:23 2020

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