The binding sites of Zinc atom in the structure of Enzyme-Substrate Interactions: Structure of Human Carbonic Anhydrase I Complexed With Bicarbonate (pdb code 1hcb). This binding sites where shown with 5.0 Angstroms radius around Zinc atom. The 1hcb structure was solved by V.KUMAR, K.K.KANNAN, with X-Ray Crystallography technique, brief refinement statistics is given in the table below:
Resolution (A) | 10.0-1.6 | Space group | P212121 | a (A) | 81.850 | b (A) | 75.310 | c (A) | 37.760 | alpha (°) | 90.00 | beta (°) | 90.00 | gamma (°) | 90.00 | Rfactor (%) | n/a | Rfree (%) | n/a |
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Zinc binding site 1 out of 1 in 1hcb
|  Click to enlarge |  Click to enlarge | Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Zinc in the PDB 1hcb. 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: His94, A: His96, A: Glu106, A: His119, A: Thr199, A: Bct522, A: Hoh268, A: Hoh272, A: Hoh361, A: Hoh520, A: Hoh521, | conact list:
Atom | Atom | Distance (A) | Zn | NE2 A:His94 | 2.02 | Zn | ND1 A:His94 | 4.19 | Zn | CD2 A:His94 | 2.99 | Zn | CE1 A:His94 | 3.10 | Zn | CG A:His94 | 4.17 | Zn | NE2 A:His96 | 2.13 | Zn | ND1 A:His96 | 4.21 | Zn | CD2 A:His96 | 3.08 | Zn | CE1 A:His96 | 3.09 | Zn | CG A:His96 | 4.23 | Zn | OE1 A:Glu106 | 4.29 | Zn | NE2 A:His119 | 4.02 | Zn | CB A:His119 | 3.61 | Zn | ND1 A:His119 | 1.94 | Zn | CD2 A:His119 | 4.22 | Zn | CE1 A:His119 | 2.88 | Zn | CG A:His119 | 3.11 | Zn | OG1 A:Thr199 | 3.95 | Zn | O1 A:Bct522 | 1.78 | Zn | O2 A:Bct522 | 3.77 | Zn | C A:Bct522 | 2.74 | Zn | O3 A:Bct522 | 3.14 | Zn | O A:Hoh268 | 4.71 | Zn | O A:Hoh272 | 4.71 | Zn | O A:Hoh361 | 4.51 | Zn | O A:Hoh520 | 2.76 | Zn | O A:Hoh521 | 1.80 |
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