Potassium in PDB 6zk9: Peripheral Domain of Open Complex I During Turnover

All present enzymatic activity of Peripheral Domain of Open Complex I During Turnover:
1.6.99.3; 7.1.1.2;

The structure of Peripheral Domain of Open Complex I During Turnover also contains other interesting chemical elements:

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

The binding sites of Potassium atom in the Peripheral Domain of Open Complex I During Turnover (pdb code 6zk9). 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 Peripheral Domain of Open Complex I During Turnover, PDB code: 6zk9:

Potassium binding site 1 out of 1 in the Peripheral Domain of Open Complex I During Turnover


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Peripheral Domain of Open Complex I During Turnover within 5.0Å range: probe atom residue distance (Å) B Occ 3:K804 b:58.1 occ:1.00 O 3:ILE200 2.8 49.5 1.0 O 3:LEU208 2.8 44.5 1.0 O 3:VAL205 2.8 35.3 1.0 OE1 3:GLN110 2.8 38.4 1.0 O 3:CYS203 2.9 46.8 1.0 O 3:HOH1048 3.0 48.7 1.0 CB 3:CYS203 3.4 29.6 1.0 C 3:CYS203 3.7 41.5 1.0 CD 3:GLN110 3.7 35.7 1.0 C 3:ILE200 3.9 46.1 1.0 CA 3:CYS203 4.0 38.9 1.0 C 3:LEU208 4.0 39.3 1.0 C 3:VAL205 4.0 28.3 1.0 O 3:HOH973 4.0 53.9 1.0 SG 3:CYS203 4.0 35.5 1.0 NE2 3:GLN110 4.2 35.7 1.0 CA 3:ILE200 4.3 44.4 1.0 N 3:CYS203 4.3 35.8 1.0 N 3:VAL205 4.6 36.5 1.0 CG2 3:ILE200 4.6 36.5 1.0 N 3:LEU208 4.6 39.2 1.0 CA 3:GLY206 4.7 30.1 1.0 CA 3:LEU208 4.8 43.7 1.0 CG 3:GLN110 4.8 36.0 1.0 O 3:ILE199 4.8 47.9 1.0 N 3:GLY206 4.8 26.1 1.0 N 3:PRO204 4.8 38.8 1.0 O 3:ASP201 4.8 37.1 1.0 CB 3:LEU208 4.9 44.8 1.0 SD c:MET45 4.9 74.9 1.0 CG2 3:THR209 4.9 37.9 1.0 N 3:THR209 5.0 39.4 1.0 CA 3:VAL205 5.0 31.7 1.0 C 3:PRO204 5.0 36.1 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