Magnesium in the structure of Structure Of the Catalytic Core of Dna Polymerase Iota in Complex With Dna and Dttp (pdb 1t3n)

The binding sites of Magnesium atom in the structure of Structure Of the Catalytic Core of Dna Polymerase Iota in Complex With Dna and Dttp (pdb code 1t3n). This binding sites where shown with 5.0 Angstroms radius around Magnesium atom. The 1t3n structure was solved by D.T.NAIR, R.E.JOHNSON, S.PRAKASH, L.PRAKASH, A.K.AGGARWAL, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 50.0-2.3 Space group P65 a (A) 98.831 b (A) 98.831 c (A) 202.755 alpha (°) 90.00 beta (°) 90.00 gamma (°) 120.00 Rfactor (%) 26.5 Rfree (%) 28.6 Magnesium Binding Sites: Magnesium binding site 1 out of 1 in 1t3n Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Magnesium in the PDB 1t3n. 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: Asp454, B: Leu455, B: Asp456, B: Cys457, B: Asp546, B: Ttp868, B: Hoh230, A: Asp34, A: Leu35, A: Asp36, A: Asp126, A: Glu127, A: Hoh520, conact list: Atom Atom Distance (A) Mg O B:Asp454 4.99 Mg CB B:Asp454 4.62 Mg OD2 B:Asp454 2.24 Mg C B:Asp454 4.46 Mg OD1 B:Asp454 3.81 Mg CG B:Asp454 3.35 Mg CA B:Asp454 4.79 Mg O B:Leu455 2.64 Mg N B:Leu455 4.12 Mg C B:Leu455 3.82 Mg CA B:Leu455 4.49 Mg N B:Asp456 4.89 Mg N B:Cys457 4.97 Mg O B:Asp546 4.74 Mg CB B:Asp546 4.33 Mg OD2 B:Asp546 3.49 Mg OD1 B:Asp546 2.05 Mg CG B:Asp546 3.07 Mg PG B:Ttp868 3.42 Mg O3B B:Ttp868 3.74 Mg O2G B:Ttp868 4.50 Mg PA B:Ttp868 3.37 Mg O3G B:Ttp868 4.29 Mg O2A B:Ttp868 4.19 Mg O1B B:Ttp868 4.80 Mg PB B:Ttp868 3.41 Mg C5' B:Ttp868 4.21 Mg O5' B:Ttp868 4.13 Mg O2B B:Ttp868 2.40 Mg O3A B:Ttp868 3.87 Mg O1G B:Ttp868 2.07 Mg O1A B:Ttp868 2.16 Mg O B:Hoh230 3.77 interactive model: