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Caesium in PDB 3e8g: Crystal Structure of the the Open Nak Channel-Na+/CA2+ Complex

Protein crystallography data

The structure of Crystal Structure of the the Open Nak Channel-Na+/CA2+ Complex, PDB code: 3e8g was solved by Y.Jiang, A.Alam, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 33.99 / 2.00
Space group I 4
Cell size a, b, c (Å), α, β, γ (°) 67.990, 67.990, 89.168, 90.00, 90.00, 90.00
R / Rfree (%) 20.2 / 23.5

Other elements in 3e8g:

The structure of Crystal Structure of the the Open Nak Channel-Na+/CA2+ Complex also contains other interesting chemical elements:

Calcium (Ca) 2 atoms
Sodium (Na) 4 atoms

Caesium Binding Sites:

The binding sites of Caesium atom in the Crystal Structure of the the Open Nak Channel-Na+/CA2+ Complex (pdb code 3e8g). This binding sites where shown within 5.0 Angstroms radius around Caesium atom.
In total 2 binding sites of Caesium where determined in the Crystal Structure of the the Open Nak Channel-Na+/CA2+ Complex, PDB code: 3e8g:
Jump to Caesium binding site number: 1; 2;

Caesium binding site 1 out of 2 in 3e8g

Go back to Caesium Binding Sites List in 3e8g
Caesium binding site 1 out of 2 in the Crystal Structure of the the Open Nak Channel-Na+/CA2+ Complex


Mono view


Stereo pair view

A full contact list of Caesium with other atoms in the Cs binding site number 1 of Crystal Structure of the the Open Nak Channel-Na+/CA2+ Complex within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Cs1

b:26.9
occ:0.56
O A:THR63 2.8 31.0 1.0
NA A:NA8 2.9 56.4 0.2
O A:VAL64 3.1 26.6 1.0
C A:VAL64 3.6 29.0 1.0
C A:THR63 3.9 35.2 1.0
CA A:VAL64 4.1 30.2 1.0
N A:GLY65 4.4 24.1 1.0
N A:VAL64 4.5 28.3 1.0
NA A:NA5 4.7 36.5 0.2
CA A:GLY65 4.8 28.3 1.0

Caesium binding site 2 out of 2 in 3e8g

Go back to Caesium Binding Sites List in 3e8g
Caesium binding site 2 out of 2 in the Crystal Structure of the the Open Nak Channel-Na+/CA2+ Complex


Mono view


Stereo pair view

A full contact list of Caesium with other atoms in the Cs binding site number 2 of Crystal Structure of the the Open Nak Channel-Na+/CA2+ Complex within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Cs2

b:40.9
occ:0.61
O B:THR63 2.8 38.4 1.0
NA B:NA7 3.0 61.1 0.2
O B:VAL64 3.0 39.9 1.0
C B:VAL64 3.6 39.3 1.0
C B:THR63 4.0 41.9 1.0
CA B:VAL64 4.2 40.8 1.0
N B:GLY65 4.4 42.5 1.0
N B:VAL64 4.6 41.1 1.0
CA B:GLY65 4.7 46.3 1.0
NA B:NA6 4.9 45.6 0.2

Reference:

A.Alam, Y.Jiang. Structural Analysis of Ion Selectivity in the Nak Channel Nat.Struct.Mol.Biol. V. 16 35 2009.
ISSN: ISSN 1545-9993
PubMed: 19098915
DOI: 10.1038/NSMB.1537
Page generated: Sun Dec 13 10:56:03 2020

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