Potassium in PDB 5e1a: Structure of Kcsa with L24C/R117C Mutations

The structure of Structure of Kcsa with L24C/R117C Mutations, PDB code: 5e1a was solved by V.Upadhyay, D.M.Kim, C.M.Nimigean, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	48.95 / 3.40
Space group	I 4
Cell size a, b, c (Å), α, β, γ (°)	154.794, 154.794, 74.479, 90.00, 90.00, 90.00
R / Rfree (%)	24.7 / 25.7

The binding sites of Potassium atom in the Structure of Kcsa with L24C/R117C Mutations (pdb code 5e1a). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 4 binding sites of Potassium where determined in the Structure of Kcsa with L24C/R117C Mutations, PDB code: 5e1a:
Jump to Potassium binding site number: 1; 2; 3; 4;

Potassium binding site 1 out of 4 in the Structure of Kcsa with L24C/R117C Mutations


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Structure of Kcsa with L24C/R117C Mutations within 5.0Å range: probe atom residue distance (Å) B Occ C:K3001 b:84.7 occ:0.25 O C:TYR78 2.7 85.6 1.0 O C:GLY77 2.8 84.8 1.0 K C:K3002 3.1 85.5 0.2 C C:TYR78 3.3 86.4 1.0 CA C:TYR78 4.0 87.1 1.0 C C:GLY77 4.0 85.2 1.0 N C:GLY79 4.1 88.3 1.0 N C:TYR78 4.5 84.6 1.0 CA C:GLY79 4.5 90.7 1.0

Potassium binding site 2 out of 4 in the Structure of Kcsa with L24C/R117C Mutations


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Structure of Kcsa with L24C/R117C Mutations within 5.0Å range: probe atom residue distance (Å) B Occ C:K3002 b:85.5 occ:0.25 O C:VAL76 2.7 82.8 1.0 O C:GLY77 2.8 84.8 1.0 K C:K3001 3.1 84.7 0.2 K C:K3003 3.1 87.2 0.2 C C:GLY77 3.6 85.2 1.0 C C:VAL76 3.9 83.8 1.0 CA C:GLY77 4.1 84.4 1.0 N C:GLY77 4.5 84.8 1.0 N C:TYR78 4.6 84.6 1.0 CA C:TYR78 4.9 87.1 1.0

Potassium binding site 3 out of 4 in the Structure of Kcsa with L24C/R117C Mutations


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Structure of Kcsa with L24C/R117C Mutations within 5.0Å range: probe atom residue distance (Å) B Occ C:K3003 b:87.2 occ:0.25 O C:THR75 2.8 86.3 1.0 O C:VAL76 2.9 82.8 1.0 K C:K3002 3.1 85.5 0.2 K C:K3004 3.6 87.4 0.2 C C:VAL76 3.6 83.8 1.0 C C:THR75 3.8 86.9 1.0 CA C:VAL76 3.9 84.5 1.0 N C:VAL76 4.3 84.5 1.0 N C:GLY77 4.6 84.8 1.0

Potassium binding site 4 out of 4 in the Structure of Kcsa with L24C/R117C Mutations


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 4 of Structure of Kcsa with L24C/R117C Mutations within 5.0Å range: probe atom residue distance (Å) B Occ C:K3004 b:87.4 occ:0.25 O C:THR75 2.8 86.3 1.0 OG1 C:THR75 2.8 88.8 1.0 CB C:THR75 3.5 87.5 1.0 K C:K3003 3.6 87.2 0.2 C C:THR75 3.8 86.9 1.0 CA C:THR75 4.4 87.5 1.0 CG2 C:THR75 4.7 89.3 1.0 O C:THR74 4.8 86.4 1.0 N C:VAL76 4.9 84.5 1.0

D.M.Kim, I.Dikiy, V.Upadhyay, D.J.Posson, D.Eliezer, C.M.Nimigean. Conformational Heterogeneity in Closed and Open States of the Kcsa Potassium Channel in Lipid Bicelles. J.Gen.Physiol. V. 148 119 2016.
ISSN: ESSN 1540-7748
PubMed: 27432996
DOI: 10.1085/JGP.201611602