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Sodium in PDB 1k4d: Potassium Channel Kcsa-Fab Complex in Low Concentration of K+

Protein crystallography data

The structure of Potassium Channel Kcsa-Fab Complex in Low Concentration of K+, PDB code: 1k4d was solved by Y.Zhou, J.H.Morais-Cabral, A.Kaufman, R.Mackinnon, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 30.00 / 2.30
Space group I 4
Cell size a, b, c (Å), α, β, γ (°) 155.290, 155.290, 75.740, 90.00, 90.00, 90.00
R / Rfree (%) 21.8 / 23.5

Other elements in 1k4d:

The structure of Potassium Channel Kcsa-Fab Complex in Low Concentration of K+ also contains other interesting chemical elements:

Potassium (K) 2 atoms

Sodium Binding Sites:

The binding sites of Sodium atom in the Potassium Channel Kcsa-Fab Complex in Low Concentration of K+ (pdb code 1k4d). This binding sites where shown within 5.0 Angstroms radius around Sodium atom.
In total only one binding site of Sodium was determined in the Potassium Channel Kcsa-Fab Complex in Low Concentration of K+, PDB code: 1k4d:

Sodium binding site 1 out of 1 in 1k4d

Go back to Sodium Binding Sites List in 1k4d
Sodium binding site 1 out of 1 in the Potassium Channel Kcsa-Fab Complex in Low Concentration of K+


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 1 of Potassium Channel Kcsa-Fab Complex in Low Concentration of K+ within 5.0Å range:
probe atom residue distance (Å) B Occ
C:Na2003

b:39.7
occ:0.25
O C:HOH2008 3.5 57.8 1.0
O C:HOH2043 3.6 92.6 0.2
O C:HOH2024 4.3 77.4 1.0

Reference:

Y.Zhou, J.H.Morais-Cabral, A.Kaufman, R.Mackinnon. Chemistry of Ion Coordination and Hydration Revealed By A K+ Channel-Fab Complex at 2.0 A Resolution. Nature V. 414 43 2001.
ISSN: ISSN 0028-0836
PubMed: 11689936
DOI: 10.1038/35102009
Page generated: Tue Dec 15 05:27:02 2020

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