Potassium in the structure of Sr Ca(2+)-Atpase in The HNE2 State Complexed With the Thapsigargin Derivative Dtb (pdb 3nal)

The binding sites of Potassium atom in the structure of Sr Ca(2+)-Atpase in The HNE2 State Complexed With the Thapsigargin Derivative Dtb (pdb code 3nal). This binding sites where shown with 5.0 Angstroms radius around Potassium atom. The 3nal structure was solved by A.M.L.WINTHER, Y.SONNTAG, C.OLESEN, J.V.MOLLER, P.NISSEN, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 50.0-2.6 Space group P41212 a (A) 71.330 b (A) 71.330 c (A) 591.020 alpha (°) 90.00 beta (°) 90.00 gamma (°) 90.00 Rfactor (%) 25.5 Rfree (%) 28.3 Potassium Binding Sites: Potassium binding site 1 out of 1 in 3nal Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Potassium in the PDB 3nal. 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: Gln244, A: Leu711, A: Lys712, A: Lys713, A: Ala714, A: Glu715, A: Ile716, A: Gly717, A: Ala730, A: Glu732, A: Hoh1057, A: Hoh1058, conact list: Atom Atom Distance (A) K NE2 A:Gln244 3.05 K CD A:Gln244 4.20 K CG A:Gln244 4.83 K O A:Leu711 3.21 K C A:Leu711 4.21 K O A:Lys712 3.29 K N A:Lys712 4.51 K C A:Lys712 3.58 K CA A:Lys712 3.82 K N A:Lys713 4.32 K C A:Lys713 4.55 K CA A:Lys713 4.88 K O A:Ala714 2.78 K N A:Ala714 4.21 K C A:Ala714 3.75 K CB A:Ala714 4.89 K CA A:Ala714 4.53 K O A:Glu715 4.01 K N A:Glu715 4.59 K C A:Glu715 4.07 K CA A:Glu715 4.63 K N A:Ile716 4.33 K C A:Ile716 4.50 K CA A:Ile716 4.52 K N A:Gly717 3.93 K CA A:Gly717 4.58 K O A:Ala730 4.63 K OE1 A:Glu732 2.92 K OE2 A:Glu732 3.32 K CD A:Glu732 3.40 K CG A:Glu732 4.72 K O A:Hoh1057 3.23 K O A:Hoh1058 3.61 interactive model: