Potassium in the structure of Crystal Structure of Thermotoga Maritima Sodium Pumping Membrane Integral Pyrophosphatase At 4 A in Complex With Phosphate and Magnesium (pdb 4av6)

The binding sites of Potassium atom in the structure of Crystal Structure of Thermotoga Maritima Sodium Pumping Membrane Integral Pyrophosphatase At 4 A in Complex With Phosphate and Magnesium (pdb code 4av6). This binding sites where shown with 5.0 Angstroms radius around Potassium atom. The 4av6 structure was solved by T.KAJANDER, J.KELLOSALO, K.KOGAN, K.POKHAREL, A.GOLDMAN, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 29.8-4.0 Space group P1211 a (A) 85.800 b (A) 112.266 c (A) 109.714 alpha (°) 90.00 beta (°) 103.00 gamma (°) 90.00 Rfactor (%) 29.52 Rfree (%) 36.5 Potassium Binding Sites: Potassium binding site 1 out of 2 in 4av6 Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Potassium in the PDB 4av6. Coordination sphere was calculated for all residues within 5.0 Angstroms distance from the central Potassium atom, shown by VdW sphere Residues shown as a stick model or VDW spheres: A: Asp236, A: Gly491, A: Asn492, A: Ala495, A: Ala496, A: Lys499, A: Gly656, A: Gly657, A: Lys695, A: Asp696, A: Po41728, conact list: Atom Atom Distance (A) K OD2 A:Asp236 4.08 K CG A:Asp236 4.99 K O A:Gly491 4.73 K O A:Asn492 3.27 K CB A:Asn492 4.47 K ND2 A:Asn492 4.28 K C A:Asn492 4.03 K CG A:Asn492 4.89 K CA A:Asn492 3.99 K C A:Ala495 4.53 K CB A:Ala495 3.70 K CA A:Ala495 4.65 K N A:Ala496 4.28 K CB A:Ala496 4.77 K CA A:Ala496 4.82 K CE A:Lys499 4.77 K NZ A:Lys499 3.84 K O A:Gly656 4.85 K C A:Gly656 4.97 K N A:Gly657 5.00 K CB A:Lys695 4.97 K CE A:Lys695 3.71 K CD A:Lys695 4.06 K CG A:Lys695 4.73 K NZ A:Lys695 4.85 K OD2 A:Asp696 4.57 K OD1 A:Asp696 3.59 K CG A:Asp696 4.49 K P A:Po41728 4.33 K O4 A:Po41728 2.87 K O3 A:Po41728 4.82 interactive model: Potassium binding site 2 out of 2 in 4av6 Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 2 of Potassium in the PDB 4av6. Coordination sphere was calculated for all residues within 5.0 Angstroms distance from the central Potassium atom, shown by VdW sphere Residues shown as a stick model or VDW spheres: B: Asp236, B: Gly491, B: Asn492, B: Ala495, B: Ala496, B: Lys499, B: Lys695, B: Asp696, B: Po41728, conact list: Atom Atom Distance (A) K OD2 B:Asp236 3.86 K OD1 B:Asp236 4.98 K CG B:Asp236 4.75 K O B:Gly491 4.58 K O B:Asn492 3.32 K CB B:Asn492 4.53 K ND2 B:Asn492 4.26 K C B:Asn492 4.04 K CG B:Asn492 4.92 K CA B:Asn492 3.95 K C B:Ala495 4.43 K CB B:Ala495 3.64 K CA B:Ala495 4.57 K N B:Ala496 4.28 K CB B:Ala496 4.84 K CA B:Ala496 4.85 K CE B:Lys499 4.62 K CD B:Lys499 4.92 K NZ B:Lys499 3.94 K CB B:Lys695 4.97 K CE B:Lys695 3.69 K CD B:Lys695 3.96 K CG B:Lys695 4.71 K OD2 B:Asp696 4.48 K OD1 B:Asp696 3.47 K CG B:Asp696 4.38 K P B:Po41728 4.45 K O4 B:Po41728 3.01 K O3 B:Po41728 4.85 interactive model: