Potassium in the structure of Cytochrome C Peroxidase in Complex With 3-Fluorocatechol (pdb 2as4)

The binding sites of Potassium atom in the structure of Cytochrome C Peroxidase in Complex With 3-Fluorocatechol (pdb code 2as4). This binding sites where shown with 5.0 Angstroms radius around Potassium atom. The 2as4 structure was solved by R.BRENK, S.W.VETTER, S.E.BOYCE, D.B.GOODIN, B.K.SHOICHET, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 10.0-1.3 Space group P212121 a (A) 51.240 b (A) 75.490 c (A) 107.040 alpha (°) 90.00 beta (°) 90.00 gamma (°) 90.00 Rfactor (%) n/a Rfree (%) 17.5 Potassium Binding Sites: Potassium binding site 1 out of 1 in 2as4 Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Potassium in the PDB 2as4. 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: His175, A: Ala176, A: Leu177, A: Gly178, A: Lys179, A: Thr180, A: Gly191, A: Hem400, A: 3fa500, A: Hoh1000, A: Hoh1001, A: Hoh1002, A: Hoh1003, A: Hoh1004, A: Hoh1561, conact list: Atom Atom Distance (A) K O A:His175 2.99 K CB A:His175 4.49 K CD2 A:His175 4.75 K C A:His175 3.82 K CG A:His175 4.74 K CA A:His175 4.06 K N A:Ala176 4.91 K C A:Ala176 4.78 K O A:Leu177 2.87 K N A:Leu177 4.50 K C A:Leu177 3.90 K CA A:Leu177 4.84 K O A:Gly178 3.81 K N A:Gly178 4.64 K C A:Gly178 3.81 K CA A:Gly178 4.61 K O A:Lys179 4.78 K N A:Lys179 3.83 K C A:Lys179 4.29 K CA A:Lys179 3.90 K N A:Thr180 4.63 K N A:Gly191 4.48 K C3D A:Hem400 4.78 K CHA A:Hem400 5.00 K CAD A:Hem400 4.48 K C6 A:3fa500 2.48 K C5 A:3fa500 1.37 K O2 A:3fa500 4.61 K C4 A:3fa500 3.29 K C1 A:3fa500 2.62 K O1 A:3fa500 3.59 K C3 A:3fa500 1.50 K F1 A:3fa500 1.93 K C2 A:3fa500 3.34 K O A:Hoh1000 3.04 K O A:Hoh1000 4.71 K O A:Hoh1001 4.24 K O A:Hoh1002 3.90 K O A:Hoh1003 3.09 K O A:Hoh1004 2.64 K O A:Hoh1561 4.55 interactive model: