Potassium in PDB 7qsn: Bovine Complex I in Lipid Nanodisc, Deactive-Apo

All present enzymatic activity of Bovine Complex I in Lipid Nanodisc, Deactive-Apo:
1.6.5.3; 1.6.99.3; 7.1.1.2;

The structure of Bovine Complex I in Lipid Nanodisc, Deactive-Apo also contains other interesting chemical elements:

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

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

Potassium binding site 1 out of 1 in the Bovine Complex I in Lipid Nanodisc, Deactive-Apo


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-Apo within 5.0Å range: probe atom residue distance (Å) B Occ G:K804 b:30.5 occ:1.00 O G:VAL205 2.6 27.4 1.0 O G:LEU208 2.6 30.1 1.0 O G:ILE200 2.7 31.8 1.0 O G:CYS203 2.8 28.2 1.0 OE1 G:GLN110 3.1 28.7 1.0 O G:HOH968 3.4 30.7 1.0 CB G:CYS203 3.6 28.2 1.0 C G:VAL205 3.8 27.4 1.0 C G:CYS203 3.8 28.2 1.0 CD G:GLN110 3.8 28.7 1.0 C G:ILE200 3.8 31.8 1.0 C G:LEU208 3.8 30.1 1.0 NE2 G:GLN110 4.0 28.7 1.0 O G:HOH927 4.0 33.1 1.0 SG G:CYS203 4.0 28.2 1.0 CA G:CYS203 4.2 28.2 1.0 N G:VAL205 4.3 27.4 1.0 CA G:ILE200 4.4 31.8 1.0 CG2 G:ILE200 4.5 31.8 1.0 N G:LEU208 4.5 30.1 1.0 CA G:LEU208 4.6 30.1 1.0 CA G:GLY206 4.6 28.5 1.0 N G:GLY206 4.6 28.5 1.0 CG2 G:THR209 4.6 30.9 1.0 N G:CYS203 4.7 28.2 1.0 CA G:VAL205 4.7 27.4 1.0 CE Q:MET45 4.7 32.7 1.0 CB G:LEU208 4.7 30.1 1.0 N G:THR209 4.8 30.9 1.0 N G:PRO204 4.8 27.7 1.0 N G:ASP201 4.9 33.5 1.0 CA G:THR209 4.9 30.9 1.0 CG G:GLN110 5.0 28.7 1.0 C G:PRO204 5.0 27.7 1.0 C G:GLY206 5.0 28.5 1.0 O G:ILE199 5.0 31.9 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