Potassium in the structure of Thymidylate Synthase R23I, R179T Double Mutant (pdb 1bp6)

The binding sites of Potassium atom in the structure of Thymidylate Synthase R23I, R179T Double Mutant (pdb code 1bp6). This binding sites where shown with 5.0 Angstroms radius around Potassium atom. The 1bp6 structure was solved by R.J.MORSE, J.S.FINER-MOORE, R.M.STROUD, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 7.0-2.4 Space group P6122 a (A) 78.500 b (A) 78.500 c (A) 243.400 alpha (°) 90.00 beta (°) 90.00 gamma (°) 120.00 Rfactor (%) 19.7 Rfree (%) 27.1 Potassium Binding Sites: Potassium binding site 1 out of 1 in 1bp6 Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Potassium in the PDB 1bp6. 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: Trp153, A: Ser183, A: Trp185, A: Asn186, A: Pro187, conact list: Atom Atom Distance (A) K CZ2 A:Trp153 4.99 K CH2 A:Trp153 4.36 K CB A:Ser183 3.84 K OG A:Ser183 2.86 K N A:Trp185 4.46 K CB A:Trp185 4.19 K CD1 A:Trp185 4.80 K C A:Trp185 3.66 K CG A:Trp185 4.96 K CA A:Trp185 4.29 K O A:Trp185 2.52 K N A:Asn186 4.75 K CD A:Pro187 4.76 interactive model: