Sodium in the structure of X-Ray Crystal Structure Of the Catalytic Domain of Thermobifida Fusca Endoglucanase CEL5A (E5) E355Q in Complex With Cellotetraose (pdb 2ckr)

The binding sites of Sodium atom in the structure of X-Ray Crystal Structure Of the Catalytic Domain of Thermobifida Fusca Endoglucanase CEL5A (E5) E355Q in Complex With Cellotetraose (pdb code 2ckr). This binding sites where shown with 5.0 Angstroms radius around Sodium atom. The 2ckr structure was solved by G.I.BERGLUND, P.J.GUALFETTI, C.REQUADT, L.S.GROSS, T.BERGFORS, A.SHAW, M.SALDAJENO, C.MITCHINSON, M.SANDGREN, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 32.1-1.8 Space group P1211 a (A) 49.365 b (A) 70.850 c (A) 76.278 alpha (°) 90.00 beta (°) 93.86 gamma (°) 90.00 Rfactor (%) 15.841 Rfree (%) 19.303 Sodium Binding Sites: Sodium binding site 1 out of 1 in 2ckr Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Sodium in the PDB 2ckr. 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: Gln191, B: Glu196, B: Tyr234, B: Arg238, B: Hoh2060, conact list: Atom Atom Distance (A) Na NE2 B:Gln191 3.65 Na CD B:Gln191 4.16 Na CG B:Gln191 3.82 Na OE1 B:Glu196 2.49 Na OE2 B:Glu196 3.51 Na CD B:Glu196 3.38 Na CG B:Glu196 4.82 Na CE2 B:Tyr234 3.67 Na CD2 B:Tyr234 4.95 Na CZ B:Tyr234 3.81 Na OH B:Tyr234 3.02 Na NH2 B:Arg238 4.61 Na O B:Hoh2060 3.72 interactive model: