Potassium in PDB 3zd8: Potassium Bound Structure of E. Coli Exoix in P1

The structure of Potassium Bound Structure of E. Coli Exoix in P1, PDB code: 3zd8 was solved by C.S.Anstey-Gilbert, G.R.Hemsworth, C.S.Flemming, M.R.G.Hodskinson, J.Zhang, S.E.Sedelnikova, T.J.Stillman, J.R.Sayers, P.J.Artymiuk, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	18.22 / 2.00
Space group	P 1
Cell size a, b, c (Å), α, β, γ (°)	43.370, 56.554, 60.489, 110.35, 95.26, 94.88
R / Rfree (%)	15.993 / 22.719

The binding sites of Potassium atom in the Potassium Bound Structure of E. Coli Exoix in P1 (pdb code 3zd8). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Potassium Bound Structure of E. Coli Exoix in P1, PDB code: 3zd8:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Potassium Bound Structure of E. Coli Exoix in P1


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Potassium Bound Structure of E. Coli Exoix in P1 within 5.0Å range: probe atom residue distance (Å) B Occ A:K1252 b:26.2 occ:1.00 O A:HOH2095 2.7 47.4 1.0 O A:ILE185 2.8 20.0 1.0 O A:VAL182 2.8 18.3 1.0 O A:PRO180 3.0 25.4 1.0 O A:ALA172 3.1 18.0 1.0 O A:LEU171 3.2 16.8 1.0 C A:ALA172 3.6 24.1 1.0 C A:VAL182 3.6 23.4 1.0 N A:VAL182 3.8 24.3 1.0 O A:HOH2092 3.9 34.9 1.0 C A:ILE185 3.9 31.6 1.0 CA A:ALA172 3.9 22.9 1.0 N A:ILE185 4.2 21.2 1.0 C A:PRO180 4.2 21.8 1.0 C A:LEU171 4.2 18.8 1.0 C A:GLY181 4.3 24.8 1.0 CA A:VAL182 4.3 18.1 1.0 N A:GLY173 4.4 15.8 1.0 N A:ALA183 4.4 24.5 1.0 CA A:ILE185 4.5 15.9 1.0 CA A:GLY181 4.5 20.6 1.0 N A:ALA172 4.6 17.7 1.0 CA A:ALA183 4.6 20.9 1.0 CB A:ILE185 4.6 18.9 1.0 N A:GLY184 4.7 20.4 1.0 CA A:GLY173 4.9 16.5 1.0 N A:GLY181 4.9 15.6 1.0 N A:GLY186 4.9 18.1 1.0 C A:ALA183 5.0 21.0 1.0

Potassium binding site 2 out of 2 in the Potassium Bound Structure of E. Coli Exoix in P1


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Potassium Bound Structure of E. Coli Exoix in P1 within 5.0Å range: probe atom residue distance (Å) B Occ B:K1251 b:26.5 occ:1.00 O B:ILE185 2.7 21.9 1.0 O B:VAL182 2.7 26.4 1.0 O B:ALA172 2.9 24.5 1.0 O B:PRO180 3.1 31.5 1.0 O B:HOH2097 3.1 27.1 1.0 O B:LEU171 3.1 25.0 1.0 C B:ALA172 3.5 23.2 1.0 C B:VAL182 3.6 33.7 1.0 C B:ILE185 3.8 28.1 1.0 N B:VAL182 3.9 26.2 1.0 O B:HOH2093 3.9 30.1 1.0 CA B:ALA172 4.0 28.1 1.0 N B:ILE185 4.2 23.0 1.0 C B:LEU171 4.2 24.5 1.0 C B:PRO180 4.3 22.4 1.0 CA B:VAL182 4.3 18.3 1.0 C B:GLY181 4.3 51.0 1.0 N B:GLY173 4.3 22.8 1.0 N B:ALA183 4.4 27.5 1.0 CA B:ILE185 4.4 16.5 1.0 CA B:GLY181 4.5 35.1 1.0 CA B:ALA183 4.6 34.8 1.0 N B:ALA172 4.6 21.2 1.0 CB B:ILE185 4.6 23.5 1.0 N B:GLY184 4.6 23.4 1.0 CA B:GLY173 4.8 19.7 1.0 N B:GLY181 4.9 24.3 1.0 N B:GLY186 4.9 20.2 1.0 C B:ALA183 4.9 16.5 1.0 O B:HOH2092 5.0 46.9 1.0

C.S.Anstey-Gilbert, G.R.Hemsworth, C.S.Flemming, M.R.G.Hodskinson, J.Zhang, S.E.Sedelnikova, T.J.Stillman, J.R.Sayers, P.J.Artymiuk. The Structure of E. Coli Exoix - Implications For Dna Binding and Catalysis in Flap Endonucleases Nucleic Acids Res. V. 41 8357 2013.
ISSN: ISSN 0305-1048
PubMed: 23821668
DOI: 10.1093/NAR/GKT591