Sodium in the structure of Crystal Structure of Dna Sheared Tandem G-A Base Pairs (pdb 1dcr)

The binding sites of Sodium atom in the structure of Crystal Structure of Dna Sheared Tandem G-A Base Pairs (pdb code 1dcr). This binding sites where shown with 5.0 Angstroms radius around Sodium atom. The 1dcr structure was solved by Y.-G.GAO, H.ROBINSON, R.SANISHVILI, A.JOACHIMIAK, A.H.-J.WANG, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 20.0-1.6 Space group C2221 a (A) 20.950 b (A) 61.860 c (A) 68.490 alpha (°) 90.00 beta (°) 90.00 gamma (°) 90.00 Rfactor (%) 19.1 Rfree (%) 26.6 Sodium Binding Sites: Sodium binding site 1 out of 1 in 1dcr Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Sodium in the PDB 1dcr. 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: Da15, B: Bru16, B: Dg17, B: Hoh1010, B: Hoh1014, B: Hoh1070, conact list: Atom Atom Distance (A) Na C3' B:Da15 4.10 Na C1' B:Da15 4.74 Na O3' B:Da15 3.93 Na C2' B:Da15 3.54 Na OP1 B:Bru16 4.10 Na C3' B:Bru16 4.13 Na C6 B:Bru16 3.99 Na N1 B:Bru16 4.84 Na C5 B:Bru16 4.75 Na C1' B:Bru16 4.64 Na P B:Bru16 2.92 Na O4' B:Bru16 4.39 Na OP2 B:Bru16 2.10 Na C5' B:Bru16 3.86 Na C2' B:Bru16 3.92 Na C4' B:Bru16 4.28 Na BR B:Bru16 4.57 Na O5' B:Bru16 2.54 Na N7 B:Dg17 4.77 Na O6 B:Dg17 4.85 Na O B:Hoh1010 4.95 Na O B:Hoh1014 2.91 Na O B:Hoh1070 3.82 interactive model: