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Potassium in PDB 3t1c: Crystal Structure of Nak Channel D66Y Mutant

Protein crystallography data

The structure of Crystal Structure of Nak Channel D66Y Mutant, PDB code: 3t1c was solved by D.B.Sauer, W.Zeng, S.Raghunathan, Y.Jiang, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 34.10 / 1.80
Space group I 4
Cell size a, b, c (Å), α, β, γ (°) 68.192, 68.192, 89.165, 90.00, 90.00, 90.00
R / Rfree (%) 21.2 / 23.3

Potassium Binding Sites:

The binding sites of Potassium atom in the Crystal Structure of Nak Channel D66Y Mutant (pdb code 3t1c). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 10 binding sites of Potassium where determined in the Crystal Structure of Nak Channel D66Y Mutant, PDB code: 3t1c:
Jump to Potassium binding site number: 1; 2; 3; 4; 5; 6; 7; 8; 9; 10;

Potassium binding site 1 out of 10 in 3t1c

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Potassium binding site 1 out of 10 in the Crystal Structure of Nak Channel D66Y Mutant


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Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Crystal Structure of Nak Channel D66Y Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K1

b:55.4
occ:0.25
 O A:GLY67 3.9 94.7 1.0

Potassium binding site 2 out of 10 in 3t1c

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Potassium binding site 2 out of 10 in the Crystal Structure of Nak Channel D66Y Mutant


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Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Crystal Structure of Nak Channel D66Y Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K2

b:54.7
occ:0.25
 K A:K3 2.6 65.6 0.2
CA A:GLY67 4.6 96.3 1.0
O A:TYR66 4.7 97.7 1.0
N A:GLY67 4.8 98.3 1.0
C A:TYR66 4.8 89.8 1.0
C A:GLY65 4.9 54.8 1.0

Potassium binding site 3 out of 10 in 3t1c

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Potassium binding site 3 out of 10 in the Crystal Structure of Nak Channel D66Y Mutant


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Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Crystal Structure of Nak Channel D66Y Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K3

b:65.6
occ:0.25
 K A:K2 2.6 54.7 0.2
K A:K9 3.0 11.3 0.2
O A:VAL64 3.1 21.3 1.0
CA A:GLY65 4.0 43.3 1.0
C A:VAL64 4.1 23.7 1.0
C A:GLY65 4.5 54.8 1.0
N A:GLY65 4.5 30.2 1.0
O A:GLY65 4.7 59.6 1.0

Potassium binding site 4 out of 10 in 3t1c

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Potassium binding site 4 out of 10 in the Crystal Structure of Nak Channel D66Y Mutant


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Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 4 of Crystal Structure of Nak Channel D66Y Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K4

b:20.8
occ:0.25
 OG1 A:THR63 2.8 21.1 1.0
O A:THR63 3.0 21.4 1.0
CB A:THR63 3.4 22.5 1.0
K A:K9 3.7 11.3 0.2
C A:THR63 3.8 26.4 1.0
CA A:THR63 4.3 25.5 1.0
CG2 A:THR63 4.6 24.1 1.0
N A:VAL64 4.8 26.4 1.0
O A:THR62 4.9 24.7 1.0

Potassium binding site 5 out of 10 in 3t1c

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Potassium binding site 5 out of 10 in the Crystal Structure of Nak Channel D66Y Mutant


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Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 5 of Crystal Structure of Nak Channel D66Y Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
A:K9

b:11.3
occ:0.25
 O A:THR63 2.8 21.4 1.0
O A:VAL64 2.9 21.3 1.0
K A:K3 3.0 65.6 0.2
C A:VAL64 3.5 23.7 1.0
K A:K4 3.7 20.8 0.2
C A:THR63 3.9 26.4 1.0
CA A:VAL64 4.1 23.1 1.0
N A:GLY65 4.4 30.2 1.0
N A:VAL64 4.5 26.4 1.0
CA A:GLY65 4.6 43.3 1.0

Potassium binding site 6 out of 10 in 3t1c

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Potassium binding site 6 out of 10 in the Crystal Structure of Nak Channel D66Y Mutant


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Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 6 of Crystal Structure of Nak Channel D66Y Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
B:K5

b:56.7
occ:0.25
 O B:GLY67 3.6 0.1 1.0
OD1 B:ASN68 3.8 0.6 1.0
C B:GLY67 4.4 0.3 1.0
CG B:ASN68 4.7 1.0 1.0
CA B:ASN68 5.0 0.7 1.0

Potassium binding site 7 out of 10 in 3t1c

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Potassium binding site 7 out of 10 in the Crystal Structure of Nak Channel D66Y Mutant


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Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 7 of Crystal Structure of Nak Channel D66Y Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
B:K6

b:54.0
occ:0.25
 O B:VAL64 4.0 37.1 1.0
CA B:GLY65 4.3 77.8 1.0
K B:K10 4.5 23.9 0.2
C B:GLY65 4.5 90.6 1.0
O B:GLY65 4.7 89.2 1.0
O B:TYR66 4.7 0.9 1.0
C B:VAL64 5.0 42.0 1.0

Potassium binding site 8 out of 10 in 3t1c

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Potassium binding site 8 out of 10 in the Crystal Structure of Nak Channel D66Y Mutant


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Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 8 of Crystal Structure of Nak Channel D66Y Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
B:K7

b:32.1
occ:0.25
 OG1 B:THR63 2.7 28.4 1.0
O B:THR63 2.9 32.1 1.0
K B:K10 3.4 23.9 0.2
CB B:THR63 3.4 35.8 1.0
C B:THR63 3.7 39.6 1.0
CA B:THR63 4.2 40.1 1.0
N B:VAL64 4.6 39.4 1.0
CG2 B:THR63 4.7 38.8 1.0
O B:THR62 4.9 39.9 1.0
CA B:VAL64 5.0 35.9 1.0

Potassium binding site 9 out of 10 in 3t1c

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Potassium binding site 9 out of 10 in the Crystal Structure of Nak Channel D66Y Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 9 of Crystal Structure of Nak Channel D66Y Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
B:K8

b:58.6
occ:0.25
 CE1 B:PHE92 5.0 57.2 1.0

Potassium binding site 10 out of 10 in 3t1c

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Potassium binding site 10 out of 10 in the Crystal Structure of Nak Channel D66Y Mutant


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 10 of Crystal Structure of Nak Channel D66Y Mutant within 5.0Å range:
probe atom residue distance (Å) B Occ
B:K10

b:23.9
occ:0.25
 O B:THR63 2.7 32.1 1.0
O B:VAL64 2.9 37.1 1.0
K B:K7 3.4 32.1 0.2
C B:VAL64 3.5 42.0 1.0
C B:THR63 3.8 39.6 1.0
CA B:VAL64 4.0 35.9 1.0
N B:GLY65 4.3 59.9 1.0
N B:VAL64 4.4 39.4 1.0
K B:K6 4.5 54.0 0.2
CA B:GLY65 4.7 77.8 1.0
CA B:THR63 5.0 40.1 1.0

Reference:

D.B.Sauer, W.Zeng, S.Raghunathan, Y.Jiang. Protein Interactions Central to Stabilizing the K+ Channel Selectivity Filter in A Four-Sited Configuration For Selective K+ Permeation. Proc.Natl.Acad.Sci.Usa V. 108 16634 2011.
ISSN: ISSN 0027-8424
PubMed: 21933962
DOI: 10.1073/PNAS.1111688108
Page generated: Sun Dec 13 23:23:31 2020

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