The binding sites of Zinc atom in the structure of Crystal Structure of Trna-Guanine Transglycosylase (Tgt) Complexed With 2,6-Diamino-8-Propylsulfanylmethyl-3H-Quinazoline-4-One (pdb code 1k4h). This binding sites where shown with 5.0 Angstroms radius around Zinc atom. The 1k4h structure was solved by R.BRENK, E.A.MEYER, R.K.CASTELLANO, M.FURLER, M.T.STUBBS, G.KLEBE, F.DIEDERICH, with X-Ray Crystallography technique, brief refinement statistics is given in the table below:
Resolution (A) | 40.8-1.8 | Space group | C121 | a (A) | 90.710 | b (A) | 64.990 | c (A) | 71.070 | alpha (°) | 90.00 | beta (°) | 96.44 | gamma (°) | 90.00 | Rfactor (%) | 19.6 | Rfree (%) | 22.9 |
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Zinc binding site 1 out of 1 in 1k4h
|  Click to enlarge |  Click to enlarge | Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Zinc in the PDB 1k4h. Coordination sphere was calculated for all residues within 5.0 Angstroms distance from the central Zinc atom, shown by VdW sphere Residues shown as a stick model or VDW spheres: A: Cys318, A: Cys320, A: Val322, A: Cys323, A: His349, | conact list:
Atom | Atom | Distance (A) | Zn | O A:Cys318 | 4.78 | Zn | CB A:Cys318 | 3.33 | Zn | SG A:Cys318 | 2.32 | Zn | C A:Cys318 | 4.65 | Zn | CA A:Cys318 | 4.61 | Zn | O A:Cys320 | 4.60 | Zn | N A:Cys320 | 4.11 | Zn | CB A:Cys320 | 3.40 | Zn | SG A:Cys320 | 2.31 | Zn | C A:Cys320 | 4.67 | Zn | CA A:Cys320 | 4.22 | Zn | CB A:Val322 | 4.77 | Zn | C A:Val322 | 4.94 | Zn | N A:Cys323 | 3.92 | Zn | CB A:Cys323 | 3.30 | Zn | SG A:Cys323 | 2.31 | Zn | CA A:Cys323 | 4.20 | Zn | O A:His349 | 4.51 | Zn | NE2 A:His349 | 4.25 | Zn | CB A:His349 | 3.80 | Zn | ND1 A:His349 | 2.25 | Zn | CD2 A:His349 | 4.41 | Zn | C A:His349 | 4.75 | Zn | CE1 A:His349 | 3.06 | Zn | CG A:His349 | 3.36 | Zn | CA A:His349 | 4.13 |
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