Potassium in PDB 7klb: X-Ray Counterpart to Neutron Structure of Reduced Human Mnsod

All present enzymatic activity of X-Ray Counterpart to Neutron Structure of Reduced Human Mnsod:
1.15.1.1;

The structure of X-Ray Counterpart to Neutron Structure of Reduced Human Mnsod, PDB code: 7klb was solved by J.Azadmanesh, W.E.Lutz, L.Coates, K.L.Weiss, G.E.O.Borgstahl, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	38.46 / 2.16
Space group	P 61 2 2
Cell size a, b, c (Å), α, β, γ (°)	81.127, 81.127, 242.156, 90, 90, 120
R / Rfree (%)	21.2 / 21.9

The structure of X-Ray Counterpart to Neutron Structure of Reduced Human Mnsod also contains other interesting chemical elements:

Manganese

(Mn)

2 atoms

The binding sites of Potassium atom in the X-Ray Counterpart to Neutron Structure of Reduced Human Mnsod (pdb code 7klb). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total only one binding site of Potassium was determined in the X-Ray Counterpart to Neutron Structure of Reduced Human Mnsod, PDB code: 7klb:

Potassium binding site 1 out of 1 in the X-Ray Counterpart to Neutron Structure of Reduced Human Mnsod


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of X-Ray Counterpart to Neutron Structure of Reduced Human Mnsod within 5.0Å range: probe atom residue distance (Å) B Occ A:K202 b:60.4 occ:1.00 N A:LEU14 2.5 32.9 1.0 O A:TYR11 2.8 29.1 1.0 C A:GLY12 3.0 35.3 1.0 O A:ILE18 3.0 33.2 1.0 N A:GLU15 3.0 33.7 1.0 CA A:LEU14 3.1 31.6 1.0 N A:ALA13 3.2 33.3 1.0 CA A:GLY12 3.3 33.0 1.0 CB A:LEU14 3.3 32.8 1.0 C A:LEU14 3.3 34.8 1.0 O A:GLY12 3.4 32.9 1.0 C A:ALA13 3.6 36.2 1.0 C A:TYR11 3.6 30.6 1.0 CG A:GLU15 3.7 42.3 1.0 N A:GLY12 3.8 31.9 1.0 CG A:MET23 3.9 25.2 1.0 CA A:ALA13 3.9 34.7 1.0 CG A:LEU14 4.0 30.3 1.0 CA A:GLU15 4.1 35.4 1.0 C A:ILE18 4.2 33.6 1.0 O A:LEU14 4.3 32.7 1.0 CB A:GLU15 4.3 36.4 1.0 C A:ASN19 4.3 31.0 1.0 N A:ALA20 4.3 33.1 1.0 CA A:ALA20 4.5 32.7 1.0 O A:ASN19 4.5 31.3 1.0 O A:ALA13 4.6 30.7 1.0 O A:ASP10 4.7 33.2 1.0 CA A:ASN19 4.7 35.2 1.0 CB A:MET23 4.8 31.6 1.0 CD A:GLU15 4.8 41.8 1.0 CA A:TYR11 5.0 30.2 1.0 CB A:ALA13 5.0 33.2 1.0 CD1 A:LEU14 5.0 27.8 1.0 N A:ASN19 5.0 33.9 1.0

J.Azadmanesh, W.E.Lutz, L.Coates, K.L.Weiss, G.E.O.Borgstahl. Direct Detection of Coupled Proton and Electron Transfers in Human Manganese Superoxide Dismutase. Nat Commun V. 12 2079 2021.
ISSN: ESSN 2041-1723
PubMed: 33824320
DOI: 10.1038/S41467-021-22290-1