Magnesium in the structure of O6-Methyl-Guanine:T Pair in the Polymerase-10 Basepair Position (pdb 2hhq)

The binding sites of Magnesium atom in the structure of O6-Methyl-Guanine:T Pair in the Polymerase-10 Basepair Position (pdb code 2hhq). This binding sites where shown with 5.0 Angstroms radius around Magnesium atom. The 2hhq structure was solved by J.J.WARREN, L.J.FORSBERG, L.S.BEESE, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 50.0-1.8 Space group P212121 a (A) 86.792 b (A) 93.274 c (A) 106.018 alpha (°) 90.00 beta (°) 90.00 gamma (°) 90.00 Rfactor (%) 21.2 Rfree (%) 24.4 Magnesium Binding Sites: Magnesium binding site 1 out of 1 in 2hhq Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Magnesium in the PDB 2hhq. 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: A: Asp653, A: Tyr654, A: Ser655, A: Gln656, A: Asp830, B: Hoh3511, A: Hoh2518, A: Hoh2814, A: Hoh3085, A: Hoh3098, A: Hoh3510, conact list: Atom Atom Distance (A) Mg CB A:Asp653 3.74 Mg OD2 A:Asp653 2.60 Mg C A:Asp653 4.61 Mg OD1 A:Asp653 4.69 Mg CG A:Asp653 3.53 Mg CA A:Asp653 4.81 Mg O A:Tyr654 2.81 Mg N A:Tyr654 4.53 Mg C A:Tyr654 3.97 Mg CA A:Tyr654 4.93 Mg N A:Ser655 4.77 Mg CA A:Ser655 4.65 Mg N A:Gln656 4.99 Mg OD2 A:Asp830 2.97 Mg OD1 A:Asp830 4.21 Mg CG A:Asp830 3.86 Mg O B:Hoh3511 4.38 Mg O A:Hoh2518 4.04 Mg O A:Hoh2814 3.09 Mg O A:Hoh3085 3.77 Mg O A:Hoh3098 4.42 Mg O A:Hoh3510 3.35 interactive model: