Potassium in PDB 6w0h: Closed-Gate Kcsa Soaked in 5MM Kcl/5MM BACL2

The structure of Closed-Gate Kcsa Soaked in 5MM Kcl/5MM BACL2, PDB code: 6w0h was solved by A.Rohaim, L.Gong, J.Li, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	68.01 / 2.60
Space group	I 4
Cell size a, b, c (Å), α, β, γ (°)	155.849, 155.849, 75.589, 90.00, 90.00, 90.00
R / Rfree (%)	19.4 / 23.9

The binding sites of Potassium atom in the Closed-Gate Kcsa Soaked in 5MM Kcl/5MM BACL2 (pdb code 6w0h). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 3 binding sites of Potassium where determined in the Closed-Gate Kcsa Soaked in 5MM Kcl/5MM BACL2, PDB code: 6w0h:
Jump to Potassium binding site number: 1; 2; 3;

Potassium binding site 1 out of 3 in the Closed-Gate Kcsa Soaked in 5MM Kcl/5MM BACL2


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Closed-Gate Kcsa Soaked in 5MM Kcl/5MM BACL2 within 5.0Å range: probe atom residue distance (Å) B Occ C:K201 b:30.0 occ:0.33 O C:VAL76 2.6 43.5 1.0 O C:THR75 2.7 54.1 1.0 K C:K203 3.2 30.0 0.2 O C:HOH301 3.3 27.0 0.2 C C:VAL76 3.5 29.3 1.0 C C:THR75 3.8 29.1 1.0 CA C:VAL76 3.8 24.2 1.0 N C:VAL76 4.3 17.7 1.0 N C:GLY77 4.6 25.8 1.0 O C:GLY77 5.0 36.5 1.0

Potassium binding site 2 out of 3 in the Closed-Gate Kcsa Soaked in 5MM Kcl/5MM BACL2


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Closed-Gate Kcsa Soaked in 5MM Kcl/5MM BACL2 within 5.0Å range: probe atom residue distance (Å) B Occ C:K202 b:30.0 occ:0.25 O C:TYR78 2.8 36.7 1.0 O C:GLY77 2.9 36.5 1.0 O C:HOH301 3.4 27.0 0.2 C C:TYR78 3.5 24.5 1.0 C C:GLY77 4.0 24.1 1.0 CA C:TYR78 4.1 19.8 1.0 O C:HOH316 4.2 30.0 0.2 N C:GLY79 4.3 23.7 1.0 N C:TYR78 4.5 21.5 1.0 CA C:GLY79 4.5 21.6 1.0

Potassium binding site 3 out of 3 in the Closed-Gate Kcsa Soaked in 5MM Kcl/5MM BACL2


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Closed-Gate Kcsa Soaked in 5MM Kcl/5MM BACL2 within 5.0Å range: probe atom residue distance (Å) B Occ C:K203 b:30.0 occ:0.25 O C:THR75 2.8 54.1 1.0 OG1 C:THR75 3.0 29.3 1.0 K C:K201 3.2 30.0 0.3 CB C:THR75 3.5 30.2 1.0 C C:THR75 3.7 29.1 1.0 CA C:THR75 4.2 33.5 1.0 N C:VAL76 4.7 17.7 1.0 CG2 C:THR75 4.7 30.0 1.0 O C:THR74 4.8 32.4 1.0

A.Rohaim, L.Gong, J.Li, H.Rui, L.Blachowicz, B.Roux. Open and Closed Structures of A Barium-Blocked Potassium Channel. J.Mol.Biol. V. 432 4783 2020.
ISSN: ESSN 1089-8638
PubMed: 32615129
DOI: 10.1016/J.JMB.2020.06.012