Cobalt in the structure of Two Distinctly Different Metal Binding Modes Are Seen in X- Ray Crystal Structures of Staphylococcal Nuclease- Cobalt(II)-Nucleotide Complexes (pdb 1sth)

The binding sites of Cobalt atom in the structure of Two Distinctly Different Metal Binding Modes Are Seen in X- Ray Crystal Structures of Staphylococcal Nuclease- Cobalt(II)-Nucleotide Complexes (pdb code 1sth). This binding sites where shown with 5.0 Angstroms radius around Cobalt atom. The 1sth structure was solved by P.J.LOLL, S.QUIRK, E.E.LATTMAN, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 6.0-1.9 Space group P41 a (A) 47.480 b (A) 47.480 c (A) 63.210 alpha (°) 90.00 beta (°) 90.00 gamma (°) 90.00 Rfactor (%) 17.4 Rfree (%) n/a Cobalt Binding Sites: Cobalt binding site 1 out of 1 in 1sth Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Cobalt in the PDB 1sth. 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: Asp21, A: Arg35, A: Asp40, A: Thr41, A: Glu43, A: Thp151, A: Hoh167, A: Hoh180, A: Hoh182, A: Hoh206, conact list: Atom Atom Distance (A) Co CB A:Asp21 4.95 Co OD2 A:Asp21 2.66 Co OD1 A:Asp21 3.58 Co CG A:Asp21 3.50 Co CZ A:Arg35 4.66 Co NE A:Arg35 4.86 Co NH2 A:Arg35 3.95 Co CB A:Asp40 4.76 Co OD2 A:Asp40 4.51 Co C A:Asp40 4.47 Co OD1 A:Asp40 2.58 Co CG A:Asp40 3.78 Co CA A:Asp40 4.51 Co O A:Thr41 2.96 Co N A:Thr41 3.74 Co CB A:Thr41 4.89 Co OG1 A:Thr41 4.07 Co C A:Thr41 4.05 Co CA A:Thr41 4.43 Co OE1 A:Glu43 4.39 Co O5P A:Thp151 3.17 Co P2 A:Thp151 4.16 Co O4P A:Thp151 4.69 Co O6P A:Thp151 4.38 Co O A:Hoh167 2.83 Co O A:Hoh180 2.82 Co O A:Hoh182 3.91 Co O A:Hoh206 4.95 interactive model: