Sodium in the structure of Crystal Structure of Rty Phosphopeptide Bound to Human Class I Mhc Hla-A2 (pdb 3bh9)

The binding sites of Sodium atom in the structure of Crystal Structure of Rty Phosphopeptide Bound to Human Class I Mhc Hla-A2 (pdb code 3bh9). This binding sites where shown with 5.0 Angstroms radius around Sodium atom. The 3bh9 structure was solved by F.MOHAMMED, M.COBBOLD, A.L.ZARLING, M.SALIM, G.A.BARRETT-WILT, J.SHABANOWITZ, D.F.HUNT, V.H.ENGELHARD, B.E.WILLCOX, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 19.6-1.7 Space group C121 a (A) 117.600 b (A) 53.100 c (A) 75.700 alpha (°) 90.00 beta (°) 104.80 gamma (°) 90.00 Rfactor (%) 19.8 Rfree (%) 22.9 Sodium Binding Sites: Sodium binding site 1 out of 1 in 3bh9 Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Sodium in the PDB 3bh9. 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: Asp122, A: Tyr123, A: Ile124, A: Ala125, A: Thr134, A: Ala135, A: Ala136, A: Hoh335, conact list: Atom Atom Distance (A) Na CB A:Asp122 3.73 Na OD2 A:Asp122 4.48 Na C A:Asp122 4.67 Na OD1 A:Asp122 4.97 Na CG A:Asp122 4.30 Na CA A:Asp122 4.72 Na O A:Tyr123 3.95 Na N A:Tyr123 4.39 Na C A:Tyr123 3.96 Na CA A:Tyr123 4.83 Na O A:Ile124 4.36 Na N A:Ile124 3.84 Na C A:Ile124 3.70 Na CA A:Ile124 3.68 Na N A:Ala125 3.63 Na CB A:Ala125 3.88 Na CA A:Ala125 4.39 Na O A:Thr134 3.28 Na CB A:Thr134 4.55 Na CG2 A:Thr134 4.78 Na C A:Thr134 4.15 Na CA A:Thr134 5.00 Na N A:Ala135 4.87 Na C A:Ala135 4.54 Na CA A:Ala135 4.83 Na N A:Ala136 4.06 Na CB A:Ala136 3.94 Na CA A:Ala136 4.29 Na O A:Hoh335 3.35 interactive model: