Potassium in PDB 5ksd: Crystal Structure of A Plasma Membrane Proton Pump

All present enzymatic activity of Crystal Structure of A Plasma Membrane Proton Pump:
3.6.3.6;

The structure of Crystal Structure of A Plasma Membrane Proton Pump, PDB code: 5ksd was solved by T.Croll, B.P.Pedersen, P.Nissen, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	52.02 / 3.50
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	85.290, 144.420, 312.110, 90.00, 90.00, 90.00
R / Rfree (%)	28.7 / 32.4

The structure of Crystal Structure of A Plasma Membrane Proton Pump also contains other interesting chemical elements:

Magnesium

(Mg)

4 atoms

The binding sites of Potassium atom in the Crystal Structure of A Plasma Membrane Proton Pump (pdb code 5ksd). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Crystal Structure of A Plasma Membrane Proton Pump, PDB code: 5ksd:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Crystal Structure of A Plasma Membrane Proton Pump


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Crystal Structure of A Plasma Membrane Proton Pump within 5.0Å range: probe atom residue distance (Å) B Occ A:K903 b:0.5 occ:1.00 O A:LYS597 2.4 0.3 1.0 O A:ALA599 2.7 90.1 1.0 OD1 A:ASP617 2.7 0.1 1.0 OD2 A:ASP617 2.8 0.2 1.0 O A:LEU596 3.1 0.1 1.0 CG A:ASP617 3.1 0.0 1.0 C A:LYS597 3.3 0.7 1.0 CA A:LYS597 3.8 0.6 1.0 C A:ALA599 3.9 94.9 1.0 C A:LEU596 4.2 94.9 1.0 N A:LYS598 4.3 0.2 1.0 N A:ALA599 4.3 95.0 1.0 C A:LYS598 4.5 97.2 1.0 N A:LYS597 4.5 0.2 1.0 N A:GLY602 4.5 98.8 1.0 O A:ASP600 4.6 83.5 1.0 CA A:ALA599 4.6 0.5 1.0 CB A:ASP617 4.7 0.5 1.0 CA A:LYS598 4.7 0.5 1.0 C A:ASP600 4.8 84.1 1.0 O A:LYS598 4.9 0.3 1.0 N A:ASP600 4.9 1.0 1.0 O A:ALA615 5.0 94.9 1.0

Potassium binding site 2 out of 2 in the Crystal Structure of A Plasma Membrane Proton Pump


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Crystal Structure of A Plasma Membrane Proton Pump within 5.0Å range: probe atom residue distance (Å) B Occ B:K903 b:0.9 occ:1.00 O B:ALA599 2.7 72.1 1.0 O B:LYS597 2.7 94.1 1.0 OD1 B:ASP617 2.8 0.2 1.0 OD2 B:ASP617 2.8 0.8 1.0 O B:LEU596 3.2 0.3 1.0 CG B:ASP617 3.2 0.7 1.0 C B:LYS597 3.5 83.6 1.0 C B:ALA599 3.9 0.7 1.0 CA B:LYS597 3.9 87.3 1.0 O B:ASP600 4.1 84.1 1.0 C B:LEU596 4.2 0.6 1.0 N B:GLY602 4.3 99.2 1.0 C B:ASP600 4.4 77.3 1.0 N B:LYS598 4.6 93.9 1.0 N B:LYS597 4.6 0.1 1.0 N B:ALA599 4.6 81.6 1.0 CB B:ASP617 4.7 84.4 1.0 C B:LYS598 4.7 1.0 1.0 CA B:ALA599 4.8 0.8 1.0 N B:ASP600 4.8 0.1 1.0 CA B:ASP600 4.8 0.5 1.0 NH1 B:ARG313 4.8 0.6 1.0 N B:ILE601 4.9 70.3 1.0 CA B:GLY602 5.0 0.9 1.0 C B:ILE601 5.0 76.1 1.0 CA B:ILE601 5.0 76.4 1.0

D.Focht, T.I.Croll, B.P.Pedersen, P.Nissen. Improved Model of Proton Pump Crystal Structure Obtained By Interactive Molecular Dynamics Flexible Fitting Expands the Mechanistic Model For Proton Translocation in P-Type Atpases. Front Physiol V. 8 202 2017.
ISSN: ESSN 1664-042X
PubMed: 28443028
DOI: 10.3389/FPHYS.2017.00202