Potassium in PDB 6w7b: K2P2.1 (Trek-1), 0 Mm K+

The structure of K2P2.1 (Trek-1), 0 Mm K+, PDB code: 6w7b was solved by M.Lolicato, D.L.Minor, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	14.96 / 3.88
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	66.906, 122.597, 125.576, 90, 90, 90
R / Rfree (%)	27.5 / 30.9

The structure of K2P2.1 (Trek-1), 0 Mm K+ also contains other interesting chemical elements:

Cadmium

(Cd)

2 atoms

The binding sites of Potassium atom in the K2P2.1 (Trek-1), 0 Mm K+ (pdb code 6w7b). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the K2P2.1 (Trek-1), 0 Mm K+, PDB code: 6w7b:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the K2P2.1 (Trek-1), 0 Mm K+


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of K2P2.1 (Trek-1), 0 Mm K+ within 5.0Å range: probe atom residue distance (Å) B Occ A:K406 b:258.8 occ:1.00 O A:THR251 2.7 224.5 1.0 O B:ILE143 2.8 217.9 1.0 O B:THR142 2.8 226.3 1.0 O B:THR251 2.9 217.2 1.0 O A:ILE143 3.0 229.3 1.0 O A:THR142 3.0 220.4 1.0 O A:ILE252 3.3 221.8 1.0 O B:ILE252 3.3 233.2 1.0 K B:K405 3.5 205.9 1.0 C B:ILE143 3.5 215.4 1.0 C A:ILE252 3.7 231.2 1.0 C A:ILE143 3.7 228.7 1.0 C B:ILE252 3.8 227.0 1.0 C A:THR251 3.8 229.6 1.0 C B:THR142 3.9 221.1 1.0 C B:THR251 3.9 227.0 1.0 CA A:ILE252 4.0 227.0 1.0 CA B:ILE143 4.1 214.7 1.0 CA B:ILE252 4.2 226.5 1.0 C A:THR142 4.2 217.0 1.0 N B:GLY144 4.4 214.2 1.0 CA A:ILE143 4.4 221.4 1.0 N A:GLY253 4.4 234.7 1.0 N A:ILE252 4.4 225.9 1.0 N B:ILE143 4.5 208.7 1.0 N A:GLY144 4.5 231.4 1.0 N B:ILE252 4.5 225.8 1.0 O A:GLY144 4.6 256.1 1.0 N B:GLY253 4.6 220.2 1.0 CA B:GLY144 4.6 215.8 1.0 CA A:GLY253 4.7 239.6 1.0 CA A:GLY144 4.7 236.8 1.0 N A:ILE143 4.8 216.4 1.0 CA A:THR251 5.0 223.2 1.0

Potassium binding site 2 out of 2 in the K2P2.1 (Trek-1), 0 Mm K+


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of K2P2.1 (Trek-1), 0 Mm K+ within 5.0Å range: probe atom residue distance (Å) B Occ B:K405 b:205.9 occ:1.00 O B:THR251 2.5 217.2 1.0 O B:THR142 2.8 226.3 1.0 O A:THR251 2.9 224.5 1.0 OG1 B:THR251 2.9 210.2 1.0 O A:THR142 3.0 220.4 1.0 CB B:THR251 3.2 208.6 1.0 OG1 B:THR142 3.2 216.2 1.0 OG1 A:THR251 3.3 224.7 1.0 OG1 A:THR142 3.4 214.7 1.0 C B:THR251 3.4 227.0 1.0 K A:K406 3.5 258.8 1.0 CB A:THR251 3.6 225.8 1.0 CB A:THR142 3.7 212.7 1.0 CB B:THR142 3.7 220.7 1.0 C B:THR142 3.8 221.1 1.0 C A:THR251 3.8 229.6 1.0 CA B:THR251 3.9 213.8 1.0 C A:THR142 4.0 217.0 1.0 CA A:THR251 4.4 223.2 1.0 CA B:THR142 4.4 205.4 1.0 CG2 B:THR251 4.4 204.8 1.0 CA A:THR142 4.5 209.3 1.0 N B:ILE252 4.5 225.8 1.0 O B:THR250 4.7 222.2 1.0 N B:ILE143 4.7 208.7 1.0 O B:THR141 4.8 215.0 1.0 N A:ILE252 4.8 225.9 1.0 CG2 A:THR142 4.9 210.3 1.0 CG2 A:THR251 4.9 224.1 1.0 CA B:ILE252 4.9 226.5 1.0 CA B:ILE143 5.0 214.7 1.0

M.Lolicato, A.M.Natale, F.Abderemane-Ali, D.Crottes, S.Capponi, R.Duman, A.Wagner, J.M.Rosenberg, M.Grabe, D.L.Minor Jr.. K 2P Channel C-Type Gating Involves Asymmetric Selectivity Filter Order-Disorder Transitions. Sci Adv V. 6 2020.
ISSN: ESSN 2375-2548
PubMed: 33127683
DOI: 10.1126/SCIADV.ABC9174