Magnesium in the structure of Actin-Dnase I Complex (pdb 2a42)

The binding sites of Magnesium atom in the structure of Actin-Dnase I Complex (pdb code 2a42). This binding sites where shown with 5.0 Angstroms radius around Magnesium atom. The 2a42 structure was solved by D.CHEREAU, F.KERFF, R.DOMINGUEZ, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 38.7-1.9 Space group C121 a (A) 152.729 b (A) 41.484 c (A) 117.905 alpha (°) 90.00 beta (°) 109.28 gamma (°) 90.00 Rfactor (%) 16.1 Rfree (%) 19.9 Magnesium Binding Sites: Magnesium binding site 1 out of 1 in 2a42 Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Magnesium in the PDB 2a42. 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: Asp172, B: Asp198, B: Ser199, B: Ala200, B: Asn208, B: Cys209, B: Ala210, B: Hoh1303, B: Hoh1309, B: Hoh1366, B: Hoh1381, conact list: Atom Atom Distance (A) Mg CB B:Asp172 4.75 Mg OD2 B:Asp172 2.39 Mg OD1 B:Asp172 3.55 Mg CG B:Asp172 3.35 Mg O B:Asp198 2.31 Mg CB B:Asp198 4.81 Mg C B:Asp198 3.50 Mg CA B:Asp198 4.58 Mg O B:Ser199 4.67 Mg N B:Ser199 4.26 Mg C B:Ser199 4.41 Mg CA B:Ser199 4.17 Mg O B:Ala200 4.53 Mg N B:Ala200 4.92 Mg O B:Asn208 4.11 Mg ND2 B:Asn208 4.84 Mg C B:Asn208 4.91 Mg C B:Cys209 4.88 Mg CA B:Cys209 4.68 Mg N B:Ala210 4.24 Mg CB B:Ala210 4.51 Mg O B:Hoh1303 2.34 Mg O B:Hoh1309 2.52 Mg O B:Hoh1366 2.43 Mg O B:Hoh1381 2.35 interactive model: