Potassium in PDB 6myu: Avian Mitochondrial Complex II Crystallized in the Presence of Hqno

All present enzymatic activity of Avian Mitochondrial Complex II Crystallized in the Presence of Hqno:
1.3.5.1;

The structure of Avian Mitochondrial Complex II Crystallized in the Presence of Hqno, PDB code: 6myu was solved by E.A.Berry, L.-S.Huang, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	47.78 / 1.97
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	70.029, 83.958, 290.540, 90.00, 90.00, 90.00
R / Rfree (%)	19.9 / 22.3

The structure of Avian Mitochondrial Complex II Crystallized in the Presence of Hqno also contains other interesting chemical elements:

Manganese	(Mn)	1 atom
Iron	(Fe)	10 atoms

The binding sites of Potassium atom in the Avian Mitochondrial Complex II Crystallized in the Presence of Hqno (pdb code 6myu). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Avian Mitochondrial Complex II Crystallized in the Presence of Hqno, PDB code: 6myu:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Avian Mitochondrial Complex II Crystallized in the Presence of Hqno


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Avian Mitochondrial Complex II Crystallized in the Presence of Hqno within 5.0Å range: probe atom residue distance (Å) B Occ A:K1003 b:41.7 occ:1.00 O A:ASN366 2.6 40.4 1.0 O A:ALA399 2.7 37.1 1.0 O A:GLU397 2.7 46.5 1.0 O A:MET367 2.9 40.3 1.0 O A:GLY368 3.0 41.2 1.0 C A:MET367 3.4 41.8 1.0 OH A:TYR365 3.4 42.4 1.0 C A:GLU397 3.6 35.6 1.0 C A:GLY368 3.7 41.0 1.0 C A:ASN366 3.8 41.2 1.0 O A:HOH1104 3.8 46.0 1.0 C A:ALA399 3.9 45.2 1.0 CA A:MET367 4.0 42.0 1.0 CA A:GLU397 4.0 39.0 1.0 CZ A:TYR365 4.0 39.0 1.0 N A:GLY368 4.1 42.0 1.0 O A:HOH1209 4.2 41.3 1.0 CE2 A:TYR365 4.3 39.6 1.0 O A:GLY396 4.3 38.0 1.0 N A:MET367 4.3 42.2 1.0 N2 A:UNL1013 4.4 41.6 0.7 CA A:GLY368 4.4 39.9 1.0 N3 A:UNL1013 4.4 39.5 0.7 CG A:GLU397 4.4 43.0 1.0 N A:ALA399 4.5 36.6 1.0 N A:GLY369 4.6 41.3 1.0 N1 A:UNL1013 4.7 38.3 0.7 N A:ALA398 4.7 35.6 1.0 C A:ALA398 4.7 40.7 1.0 N A:SER400 4.8 38.1 1.0 CB A:GLU397 4.8 34.6 1.0 CA A:GLY369 4.8 39.5 1.0 CA A:ALA399 4.8 37.1 1.0 CD2 A:HIS404 4.8 39.9 1.0 CA A:SER400 4.8 44.2 1.0 CA A:ASN366 4.9 40.8 1.0 CB A:ASN366 4.9 42.8 1.0 CE1 A:TYR365 5.0 38.2 1.0

Potassium binding site 2 out of 2 in the Avian Mitochondrial Complex II Crystallized in the Presence of Hqno


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Avian Mitochondrial Complex II Crystallized in the Presence of Hqno within 5.0Å range: probe atom residue distance (Å) B Occ B:K1004 b:62.1 occ:1.00 O B:HOH1183 2.6 48.1 1.0 OG1 B:THR199 2.8 47.8 1.0 O B:ASP196 2.9 38.1 1.0 O B:ASP193 2.9 31.7 1.0 O B:MET191 3.0 36.4 1.0 O B:HOH1121 3.1 36.4 1.0 N3 B:UNL1006 3.3 60.9 1.0 C B:ASP193 3.8 33.2 1.0 C B:ASP196 3.9 39.9 1.0 N2 B:UNL1006 4.0 61.9 1.0 C B:MET191 4.1 35.3 1.0 CB B:THR199 4.2 45.3 1.0 CA B:SER194 4.3 36.9 1.0 CB B:ASP196 4.3 38.4 1.0 N B:ASP196 4.4 34.6 1.0 CA B:ASP196 4.4 36.6 1.0 N B:ASP193 4.4 34.5 1.0 C B:ILE192 4.5 37.7 1.0 N B:SER194 4.5 35.9 1.0 O B:TRP190 4.5 34.5 1.0 CA B:ILE192 4.6 40.4 1.0 C B:SER194 4.6 37.3 1.0 N B:ILE192 4.8 35.9 1.0 O B:SER194 4.8 35.1 1.0 CA B:ASP193 4.8 32.6 1.0 OD1 B:ASP196 4.8 36.9 1.0 N1 B:UNL1006 4.9 62.1 1.0 CG2 B:THR199 4.9 40.0 1.0 O B:ILE192 4.9 37.0 1.0 N B:ASP197 5.0 41.2 1.0 CA B:MET191 5.0 34.9 1.0

L.-S.Huang, E.A.Berry. Crystallographic Studies of the Binding of Ligands to the Ubiquinone Site of Mitochondrial Respiratory Complex II To Be Published.