Sodium in the structure of Calcium Pump Crystal Structure With Bound Amppcp and CA2+ (pdb 3ar2)

The binding sites of Sodium atom in the structure of Calcium Pump Crystal Structure With Bound Amppcp and CA2+ (pdb code 3ar2). This binding sites where shown with 5.0 Angstroms radius around Sodium atom. The 3ar2 structure was solved by C.TOYOSHIMA, S.YONEKURA, J.TSUEDA, S.IWASAWA, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 15.0-2.5 Space group C121 a (A) 161.995 b (A) 75.306 c (A) 151.541 alpha (°) 90.00 beta (°) 108.97 gamma (°) 90.00 Rfactor (%) 24.7 Rfree (%) 27.2 Sodium Binding Sites: Sodium binding site 1 out of 1 in 3ar2 Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Sodium in the PDB 3ar2. 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: A: Leu711, A: Lys712, A: Lys713, A: Ala714, A: Glu715, A: Ile716, A: Glu732, A: Hoh3101, conact list: Atom Atom Distance (A) Na O A:Leu711 4.19 Na O A:Lys712 2.86 Na C A:Lys712 3.92 Na CA A:Lys712 4.46 Na O A:Lys713 4.61 Na C A:Lys713 4.71 Na O A:Ala714 2.68 Na N A:Ala714 4.86 Na C A:Ala714 3.87 Na CA A:Ala714 4.96 Na O A:Glu715 3.43 Na N A:Glu715 4.59 Na C A:Glu715 3.96 Na CA A:Glu715 4.42 Na N A:Ile716 4.73 Na OE1 A:Glu732 3.50 Na OE2 A:Glu732 3.21 Na CD A:Glu732 3.51 Na CG A:Glu732 4.61 Na O A:Hoh3101 2.31 interactive model: