Sodium in the structure of Crystal Structure of Wild-Type Tryptophan Synthase Complexed With 5- Fluoroindole Propanol Phosphate (pdb 1a50)

The binding sites of Sodium atom in the structure of Crystal Structure of Wild-Type Tryptophan Synthase Complexed With 5- Fluoroindole Propanol Phosphate (pdb code 1a50). This binding sites where shown with 5.0 Angstroms radius around Sodium atom. The 1a50 structure was solved by T.R.SCHNEIDER, E.GERHARDT, M.LEE, P.-H.LIANG, K.S.ANDERSON, I.SCHLICHTING, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: Resolution (A) 10.0-2.3 Space group C121 a (A) 182.700 b (A) 60.700 c (A) 67.500 alpha (°) 90.00 beta (°) 94.50 gamma (°) 90.00 Rfactor (%) 17.7 Rfree (%) 24.7 Sodium Binding Sites: Sodium binding site 1 out of 1 in 1a50 Click to enlarge Click to enlarge Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Sodium in the PDB 1a50. 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: Val231, B: Gly232, B: Gly233, B: Glu256, B: Gly268, B: Pro270, B: Ser297, B: Leu304, B: Phe306, B: Pro307, B: Ser308, B: Val309, B: Hoh1016, B: Hoh1162, conact list: Atom Atom Distance (A) Na O B:Val231 4.42 Na C B:Val231 4.99 Na O B:Gly232 2.21 Na N B:Gly232 4.92 Na C B:Gly232 3.36 Na CA B:Gly232 4.04 Na N B:Gly233 4.46 Na CA B:Gly233 4.76 Na OE2 B:Glu256 4.88 Na O B:Gly268 4.09 Na CD B:Pro270 3.96 Na CG B:Pro270 3.75 Na OG B:Ser297 4.36 Na O B:Leu304 4.85 Na O B:Phe306 2.43 Na N B:Phe306 4.55 Na CB B:Phe306 4.07 Na CD2 B:Phe306 4.51 Na C B:Phe306 3.57 Na CG B:Phe306 4.74 Na CA B:Phe306 4.29 Na N B:Pro307 4.60 Na C B:Pro307 4.60 Na CA B:Pro307 4.84 Na O B:Ser308 2.45 Na N B:Ser308 4.02 Na C B:Ser308 3.65 Na CA B:Ser308 4.43 Na N B:Val309 4.62 Na CB B:Val309 4.78 Na CA B:Val309 4.69 Na O B:Hoh1016 2.51 Na O B:Hoh1162 2.49 interactive model: