Potassium in PDB 6zkf: Complex I During Turnover, OPEN3

All present enzymatic activity of Complex I During Turnover, OPEN3:
7.1.1.2;

The structure of Complex I During Turnover, OPEN3 also contains other interesting chemical elements:

Zinc	(Zn)	1 atom
Iron	(Fe)	28 atoms

The binding sites of Potassium atom in the Complex I During Turnover, OPEN3 (pdb code 6zkf). 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 Complex I During Turnover, OPEN3, PDB code: 6zkf:

Potassium binding site 1 out of 1 in the Complex I During Turnover, OPEN3


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Complex I During Turnover, OPEN3 within 5.0Å range: probe atom residue distance (Å) B Occ 3:K804 b:41.3 occ:1.00 O 3:ILE200 2.8 40.3 1.0 OE1 3:GLN110 2.9 39.0 1.0 O 3:VAL205 2.9 18.4 1.0 O 3:CYS203 2.9 30.0 1.0 O 3:LEU208 2.9 27.7 1.0 CD 3:GLN110 3.7 27.4 1.0 CB 3:CYS203 3.7 20.5 1.0 C 3:CYS203 3.9 24.6 1.0 C 3:ILE200 3.9 29.5 1.0 C 3:VAL205 4.0 15.9 1.0 C 3:LEU208 4.1 22.4 1.0 NE2 3:GLN110 4.2 24.3 1.0 SG 3:CYS203 4.3 31.1 1.0 CA 3:CYS203 4.3 22.1 1.0 CA 3:ILE200 4.5 27.5 1.0 O 3:ASP201 4.6 32.1 1.0 N 3:VAL205 4.6 19.7 1.0 N 3:CYS203 4.6 28.2 1.0 CG 3:GLN110 4.7 21.4 1.0 CG2 3:ILE200 4.7 24.3 1.0 CA 3:GLY206 4.7 13.3 1.0 SD c:MET45 4.8 58.0 1.0 N 3:GLY206 4.8 12.7 1.0 N 3:LEU208 4.9 22.3 1.0 C 3:PRO204 4.9 21.9 1.0 CA 3:THR209 4.9 27.9 1.0 N 3:PRO204 4.9 22.0 1.0 CG2 3:THR209 4.9 35.4 1.0 N 3:THR209 5.0 22.5 1.0 CA 3:VAL205 5.0 14.8 1.0 CA 3:LEU208 5.0 26.8 1.0

D.Kampjut, L.A.Sazanov. The Coupling Mechanism of Mammalian Respiratory Complex I. Science V. 370 2020.
ISSN: ESSN 1095-9203
PubMed: 32972993
DOI: 10.1126/SCIENCE.ABC4209