Potassium in PDB 6y72: Pseudomonas Stutzeri Nitrous Oxide Reductase Mutant, H178A

All present enzymatic activity of Pseudomonas Stutzeri Nitrous Oxide Reductase Mutant, H178A:
1.7.2.4;

The structure of Pseudomonas Stutzeri Nitrous Oxide Reductase Mutant, H178A, PDB code: 6y72 was solved by L.Zhang, P.M.H.Kroneck, O.Einsle, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	76.45 / 1.55
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	68.741, 76.453, 108.761, 90, 93.32, 90
R / Rfree (%)	16.1 / 20.5

The structure of Pseudomonas Stutzeri Nitrous Oxide Reductase Mutant, H178A also contains other interesting chemical elements:

Sodium	(Na)	2 atoms
Chlorine	(Cl)	1 atom
Copper	(Cu)	4 atoms
Calcium	(Ca)	2 atoms

The binding sites of Potassium atom in the Pseudomonas Stutzeri Nitrous Oxide Reductase Mutant, H178A (pdb code 6y72). 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 Pseudomonas Stutzeri Nitrous Oxide Reductase Mutant, H178A, PDB code: 6y72:

Potassium binding site 1 out of 1 in the Pseudomonas Stutzeri Nitrous Oxide Reductase Mutant, H178A


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Pseudomonas Stutzeri Nitrous Oxide Reductase Mutant, H178A within 5.0Å range: probe atom residue distance (Å) B Occ B:K703 b:18.5 occ:0.47 O A:HOH920 2.4 38.6 1.0 OE1 B:GLU469 2.5 31.0 1.0 O B:LYS454 2.5 32.2 1.0 O B:HOH817 2.6 34.5 1.0 O A:HOH829 2.6 23.2 1.0 O B:HOH992 2.6 27.9 1.0 OE2 B:GLU469 2.9 40.2 1.0 CD B:GLU469 3.0 45.5 1.0 C B:LYS454 3.7 30.9 1.0 CD1 A:TRP620 4.2 26.6 1.0 OD1 A:ASP580 4.2 37.3 1.0 O A:HOH1027 4.3 33.6 1.0 CA B:LYS454 4.3 23.6 1.0 NE1 A:TRP620 4.4 32.7 1.0 CG B:GLU469 4.5 43.1 1.0 O B:HIS467 4.6 25.0 1.0 O A:PHE621 4.6 25.3 1.0 OE1 B:GLU492 4.6 24.4 1.0 N B:PHE455 4.7 25.6 1.0 O B:PRO468 4.7 32.6 1.0 CB B:LYS454 4.7 27.1 1.0 CD1 B:PHE455 4.8 28.8 1.0 CA B:PHE455 4.9 28.7 1.0 O A:HOH948 4.9 26.8 1.0 CA B:GLU469 5.0 28.9 1.0

L.Zhang, E.Bill, P.M.H.Kroneck, O.Einsle. A [3CU:2S] Cluster Provides Insight Into the Assembly and Function of the Cuz Site of Nitrous Oxide Reductase Chem Sci 2021.
ISSN: ESSN 2041-6539
DOI: 10.1039/D0SC05204C