Copper in the structure of Auracyanin A: A "Blue" Copper Protein From the Green Thermophilic Photosynthetic Bacterium,Chloroflexus Aurantiacus (pdb 2aan)

The binding sites of Copper atom in the structure of Auracyanin A: A "Blue" Copper Protein From the Green Thermophilic Photosynthetic Bacterium,Chloroflexus Aurantiacus (pdb code 2aan). This binding sites where shown with 5.0 Angstroms radius around Copper atom. The 2aan structure was solved by M.LEE, J.M.GUSS, H.C.FREEMAN, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 18.0-1.9 Space group P41212 a (A) 70.578 b (A) 70.578 c (A) 45.665 alpha (°) 90.00 beta (°) 90.00 gamma (°) 90.00 Rfactor (%) 16.2 Rfree (%) 20.7 Copper Binding Sites: Copper binding site 1 out of 1 in 2aan Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Copper in the PDB 2aan. Coordination sphere was calculated for all residues within 5.0 Angstroms distance from the central Copper atom, shown by VdW sphere Residues shown as a stick model or VDW spheres: A: Gln57, A: His58, A: Asn59, A: Cys123, A: Val125, A: His128, A: Met132, conact list: Atom Atom Distance (A) Cu O A:Gln57 3.65 Cu C A:Gln57 4.46 Cu NE2 A:His58 4.13 Cu N A:His58 4.47 Cu CB A:His58 3.49 Cu ND1 A:His58 2.06 Cu CD2 A:His58 4.20 Cu C A:His58 4.58 Cu CE1 A:His58 2.98 Cu CG A:His58 3.10 Cu CA A:His58 3.53 Cu N A:Asn59 4.43 Cu CB A:Cys123 3.26 Cu SG A:Cys123 2.22 Cu CA A:Cys123 4.67 Cu N A:Val125 4.92 Cu CB A:Val125 4.06 Cu CG2 A:Val125 4.43 Cu CG1 A:Val125 4.72 Cu NE2 A:His128 4.17 Cu CB A:His128 3.44 Cu ND1 A:His128 2.09 Cu CD2 A:His128 4.22 Cu CE1 A:His128 3.04 Cu CG A:His128 3.10 Cu CA A:His128 4.94 Cu CB A:Met132 4.82 Cu CE A:Met132 3.54 Cu CG A:Met132 4.34 Cu SD A:Met132 2.90 interactive model: