Sodium in PDB 3ogc: Kcsa E71A Variant in Presence of Na+

The structure of Kcsa E71A Variant in Presence of Na+, PDB code: 3ogc was solved by J.G.Mccoy, C.M.Nimigean, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	38.70 / 3.80
Space group	I 4
Cell size a, b, c (Å), α, β, γ (°)	154.735, 154.735, 75.401, 90.00, 90.00, 90.00
R / Rfree (%)	24.7 / 28.3

The binding sites of Sodium atom in the Kcsa E71A Variant in Presence of Na+ (pdb code 3ogc). This binding sites where shown within 5.0 Angstroms radius around Sodium atom.
In total 2 binding sites of Sodium where determined in the Kcsa E71A Variant in Presence of Na+, PDB code: 3ogc:
Jump to Sodium binding site number: 1; 2;

Sodium binding site 1 out of 2 in the Kcsa E71A Variant in Presence of Na+


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 1 of Kcsa E71A Variant in Presence of Na+ within 5.0Å range: probe atom residue distance (Å) B Occ C:Na1000 b:19.7 occ:0.25 O C:GLY77 2.5 57.5 1.0 C C:GLY77 3.7 53.6 1.0 CA C:GLY77 4.4 51.6 1.0 N C:GLY77 4.5 53.1 1.0 N C:TYR78 4.7 52.7 1.0 CA C:TYR78 4.8 56.6 1.0 N C:GLY79 4.9 65.9 1.0

Sodium binding site 2 out of 2 in the Kcsa E71A Variant in Presence of Na+


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 2 of Kcsa E71A Variant in Presence of Na+ within 5.0Å range: probe atom residue distance (Å) B Occ C:Na1001 b:19.8 occ:0.25 O C:THR75 2.6 65.4 1.0 OG1 C:THR75 3.5 77.5 1.0 C C:THR75 3.8 62.5 1.0 CB C:THR75 4.2 74.5 1.0 CA C:THR75 4.6 66.7 1.0 N C:VAL76 4.7 57.9 1.0 CA C:VAL76 4.8 55.5 1.0 O C:THR74 4.9 70.7 1.0

W.W.Cheng, J.G.Mccoy, A.N.Thompson, C.G.Nichols, C.M.Nimigean. Mechanism For Selectivity-Inactivation Coupling in Kcsa Potassium Channels. Proc.Natl.Acad.Sci.Usa V. 108 5272 2011.
ISSN: ISSN 0027-8424
PubMed: 21402935
DOI: 10.1073/PNAS.1014186108