Cobalt in the structure of Structure of Diphtheria Toxin Repressor (pdb 2dtr)

The binding sites of Cobalt atom in the structure of Structure of Diphtheria Toxin Repressor (pdb code 2dtr). This binding sites where shown with 5.0 Angstroms radius around Cobalt atom. The 2dtr structure was solved by X.QIU, E.POHL, W.G.HOL, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 7.0-1.9 Space group P3121 a (A) 63.900 b (A) 63.900 c (A) 109.300 alpha (°) 90.00 beta (°) 90.00 gamma (°) 120.00 Rfactor (%) 17.1 Rfree (%) n/a Cobalt Binding Sites: Cobalt binding site 1 out of 1 in 2dtr Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Cobalt in the PDB 2dtr. Coordination sphere was calculated for all residues within 5.0 Angstroms distance from the central Cobalt atom, shown by VdW sphere Residues shown as a stick model or VDW spheres: A: His79, A: Glu83, A: His98, A: Phe128, A: So4290, A: Hoh303, A: Hoh407, A: Hoh440, conact list: Atom Atom Distance (A) Co NE2 A:His79 2.15 Co ND1 A:His79 4.20 Co CD2 A:His79 3.26 Co CE1 A:His79 3.01 Co CG A:His79 4.31 Co OE1 A:Glu83 3.27 Co OE2 A:Glu83 2.03 Co CD A:Glu83 2.92 Co CG A:Glu83 4.18 Co O A:His98 4.51 Co NE2 A:His98 3.93 Co CB A:His98 3.82 Co ND1 A:His98 1.99 Co CD2 A:His98 4.20 Co C A:His98 4.73 Co CE1 A:His98 2.70 Co CG A:His98 3.22 Co CA A:His98 4.02 Co CE2 A:Phe128 4.41 Co CD2 A:Phe128 4.15 Co S A:So4290 3.10 Co O1 A:So4290 4.35 Co O2 A:So4290 3.72 Co O4 A:So4290 2.07 Co O3 A:So4290 3.20 Co O A:Hoh303 3.82 Co O A:Hoh407 4.32 Co O A:Hoh440 4.49 interactive model: