Cobalt in the structure of Aminoacyl-Trna Synthetase Ribozyme (pdb 3cun)

The binding sites of Cobalt atom in the structure of Aminoacyl-Trna Synthetase Ribozyme (pdb code 3cun). This binding sites where shown with 5.0 Angstroms radius around Cobalt atom. The 3cun structure was solved by H.XIAO, H.MURAKAMI, H.SUGA, A.R.FERRE-D'AMARE, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 28.8-3.0 Space group C121 a (A) 191.368 b (A) 48.076 c (A) 90.645 alpha (°) 90.00 beta (°) 93.50 gamma (°) 90.00 Rfactor (%) 25.2 Rfree (%) 30.3 Cobalt Binding Sites: Cobalt binding site 1 out of 1 in 3cun Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Cobalt in the PDB 3cun. 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: B: His426, B: Ser430, B: Gly433, B: Gln434, B: Ile435, conact list: Atom Atom Distance (A) Co NE2 B:His426 3.35 Co CD2 B:His426 4.23 Co CE1 B:His426 4.01 Co CB B:Ser430 3.81 Co CA B:Ser430 4.19 Co O B:Gly433 4.07 Co C B:Gly433 4.96 Co C B:Gln434 3.91 Co CA B:Gln434 4.06 Co O B:Ile435 3.92 Co N B:Ile435 2.91 Co CB B:Ile435 3.23 Co CD1 B:Ile435 4.21 Co CG2 B:Ile435 4.51 Co C B:Ile435 4.23 Co CG1 B:Ile435 3.67 Co CA B:Ile435 3.57 interactive model: