Sodium in the structure of B-Dna (pdb 1zew)

The binding sites of Sodium atom in the structure of B-Dna (pdb code 1zew). This binding sites where shown with 5.0 Angstroms radius around Sodium atom. The 1zew structure was solved by F.A.HAYS, A.T.TEEGARDEN, Z.J.R.JONES, M.HARMS, D.RAUP, J.WATSON, E.CAVALIERE, P.S.HO, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 17.1-2.2 Space group C121 a (A) 63.710 b (A) 24.556 c (A) 40.631 alpha (°) 90.00 beta (°) 122.59 gamma (°) 90.00 Rfactor (%) 24.4 Rfree (%) 27.3 Sodium Binding Sites: Sodium binding site 1 out of 1 in 1zew Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Sodium in the PDB 1zew. Coordination sphere was calculated for all residues within 5.0 Angstroms distance from the central Sodium atom, shown by VdW sphere Residues shown as a stick model or VDW spheres: B: Da16, B: Hoh82, conact list: Atom Atom Distance (A) Na C8 B:Da16 4.96 Na N7 B:Da16 4.65 Na OP2 B:Da16 4.57 Na O B:Hoh82 4.55 interactive model: