Potassium in PDB 7qsm: Bovine Complex I in Lipid Nanodisc, Deactive-Ligand (Composite)

All present enzymatic activity of Bovine Complex I in Lipid Nanodisc, Deactive-Ligand (Composite):
1.6.5.3; 1.6.99.3; 7.1.1.2;

The structure of Bovine Complex I in Lipid Nanodisc, Deactive-Ligand (Composite) also contains other interesting chemical elements:

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

The binding sites of Potassium atom in the Bovine Complex I in Lipid Nanodisc, Deactive-Ligand (Composite) (pdb code 7qsm). 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 Bovine Complex I in Lipid Nanodisc, Deactive-Ligand (Composite), PDB code: 7qsm:

Potassium binding site 1 out of 1 in the Bovine Complex I in Lipid Nanodisc, Deactive-Ligand (Composite)


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Bovine Complex I in Lipid Nanodisc, Deactive-Ligand (Composite) within 5.0Å range: probe atom residue distance (Å) B Occ G:K804 b:20.4 occ:1.00 O G:VAL205 2.5 21.0 1.0 O G:LEU208 2.7 24.6 1.0 O G:CYS203 2.8 23.0 1.0 O G:ILE200 2.8 27.3 1.0 OE1 G:GLN110 3.0 22.2 1.0 O G:HOH1084 3.1 25.8 1.0 CB G:CYS203 3.6 23.0 1.0 C G:CYS203 3.7 23.0 1.0 CD G:GLN110 3.7 22.2 1.0 C G:VAL205 3.7 21.0 1.0 C G:LEU208 3.9 24.6 1.0 SG G:CYS203 3.9 23.0 1.0 C G:ILE200 3.9 27.3 1.0 NE2 G:GLN110 4.0 22.2 1.0 O G:HOH928 4.1 26.7 1.0 CA G:CYS203 4.1 23.0 1.0 N G:VAL205 4.3 21.0 1.0 CA G:ILE200 4.4 27.3 1.0 CG2 G:ILE200 4.5 27.3 1.0 N G:LEU208 4.5 24.6 1.0 N G:CYS203 4.6 23.0 1.0 N G:GLY206 4.6 22.1 1.0 CA G:GLY206 4.6 22.1 1.0 CA G:VAL205 4.6 21.0 1.0 CA G:LEU208 4.6 24.6 1.0 CE Q:MET45 4.7 28.0 1.0 C G:PRO204 4.7 21.7 1.0 N G:PRO204 4.8 21.7 1.0 CB G:LEU208 4.8 24.6 1.0 CG2 G:THR209 4.8 25.5 1.0 CG G:GLN110 4.9 22.2 1.0 N G:THR209 4.9 25.5 1.0

I.Chung, J.J.Wright, H.R.Bridges, B.S.Ivanov, O.Biner, C.S.Pereira, G.M.Arantes, J.Hirst. Cryo-Em Structures Define Ubiquinone-10 Binding to Mitochondrial Complex I and Conformational Transitions Accompanying Q-Site Occupancy. Nat Commun V. 13 2758 2022.
ISSN: ESSN 2041-1723
PubMed: 35589726
DOI: 10.1038/S41467-022-30506-1