Magnesium in the structure of Structure of Nucleotide-Free Scallop Myosin S1 (pdb 1sr6)

The binding sites of Magnesium atom in the structure of Structure of Nucleotide-Free Scallop Myosin S1 (pdb code 1sr6). This binding sites where shown with 5.0 Angstroms radius around Magnesium atom. The 1sr6 structure was solved by D.RISAL, S.GOURINATH, D.M.HIMMEL, A.G.SZENT-GYORGYI, C.COHEN, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 38.8-2.8 Space group P1211 a (A) 83.591 b (A) 51.109 c (A) 162.329 alpha (°) 90.00 beta (°) 98.02 gamma (°) 90.00 Rfactor (%) 24.2 Rfree (%) 28.6 Magnesium Binding Sites: Magnesium binding site 1 out of 1 in 1sr6 Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Magnesium in the PDB 1sr6. Coordination sphere was calculated for all residues within 5.0 Angstroms distance from the central Magnesium atom, shown by VdW sphere Residues shown as a stick model or VDW spheres: B: Asp28, B: Asp30, B: Arg31, B: Asp32, B: Gly33, B: Phe34, B: Val35, B: Ser36, B: Asp39, conact list: Atom Atom Distance (A) Mg OD1 B:Asp28 3.52 Mg CG B:Asp28 4.75 Mg CB B:Asp30 4.84 Mg OD2 B:Asp30 3.58 Mg OD1 B:Asp30 2.73 Mg CG B:Asp30 3.48 Mg N B:Arg31 4.80 Mg C B:Arg31 4.98 Mg N B:Asp32 4.01 Mg CB B:Asp32 4.02 Mg OD2 B:Asp32 2.70 Mg OD1 B:Asp32 1.90 Mg CG B:Asp32 2.58 Mg CA B:Asp32 4.51 Mg N B:Gly33 4.87 Mg O B:Phe34 2.00 Mg N B:Phe34 4.28 Mg CB B:Phe34 4.54 Mg C B:Phe34 2.86 Mg CA B:Phe34 4.16 Mg O B:Val35 3.10 Mg N B:Val35 3.24 Mg CB B:Val35 4.22 Mg CG2 B:Val35 4.77 Mg C B:Val35 3.23 Mg CG1 B:Val35 4.57 Mg CA B:Val35 2.87 Mg N B:Ser36 4.30 Mg CB B:Ser36 4.82 Mg CB B:Asp39 4.76 Mg OD2 B:Asp39 4.88 Mg OD1 B:Asp39 2.87 Mg CG B:Asp39 4.02 interactive model: