Sodium in the structure of Bacillus Caldolyticus Cold-Shock Protein Mutants to Study Determinants of Protein Stability (pdb 1hzb)

The binding sites of Sodium atom in the structure of Bacillus Caldolyticus Cold-Shock Protein Mutants to Study Determinants of Protein Stability (pdb code 1hzb). This binding sites where shown with 5.0 Angstroms radius around Sodium atom. The 1hzb structure was solved by H.DELBRUECK, U.MUELLER, D.PERL, F.X.SCHMID, U.HEINEMANN, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 8.0-1.3 Space group P3121 a (A) 51.579 b (A) 51.579 c (A) 101.149 alpha (°) 90.00 beta (°) 90.00 gamma (°) 120.00 Rfactor (%) 15.8 Rfree (%) 18.9 Sodium Binding Sites: Sodium binding site 1 out of 1 in 1hzb Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Sodium in the PDB 1hzb. Coordination sphere was calculated for all residues within 5.0 Angstroms distance from the central Sodium atom, shown by VdW sphere Residues shown as a stick model or VDW spheres: B: Glu19, B: Val20, B: Glu21, B: Gly22, B: Gly23, B: Ser24, B: Asp25, B: Hoh110, conact list: Atom Atom Distance (A) Na OE2 B:Glu19 4.66 Na CD B:Glu19 4.99 Na CG B:Glu19 4.18 Na O B:Val20 2.41 Na N B:Val20 4.03 Na CG2 B:Val20 4.70 Na C B:Val20 3.56 Na CA B:Val20 4.40 Na N B:Glu21 4.48 Na C B:Glu21 4.68 Na CA B:Glu21 4.53 Na N B:Gly22 4.17 Na O B:Gly23 2.67 Na N B:Gly23 4.12 Na C B:Gly23 3.87 Na CA B:Gly23 4.64 Na N B:Ser24 4.86 Na OD1 B:Asp25 4.66 Na O B:Hoh110 2.55 interactive model: