Silicon in PDB 7a9f: Co-Substituted Keggin Silicotungstate with Covalent Bond to Proteinase K

All present enzymatic activity of Co-Substituted Keggin Silicotungstate with Covalent Bond to Proteinase K:
3.4.21.64;

The structure of Co-Substituted Keggin Silicotungstate with Covalent Bond to Proteinase K, PDB code: 7a9f was solved by J.Breibeck, A.Rompel, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	43.61 / 1.62
Space group	P 43 21 2
Cell size a, b, c (Å), α, β, γ (°)	68.11, 68.11, 102.75, 90, 90, 90
R / Rfree (%)	14.3 / 17.4

The structure of Co-Substituted Keggin Silicotungstate with Covalent Bond to Proteinase K also contains other interesting chemical elements:

Tungsten	(W)	22 atoms
Cobalt	(Co)	2 atoms

The binding sites of Silicon atom in the Co-Substituted Keggin Silicotungstate with Covalent Bond to Proteinase K (pdb code 7a9f). This binding sites where shown within 5.0 Angstroms radius around Silicon atom.
In total 2 binding sites of Silicon where determined in the Co-Substituted Keggin Silicotungstate with Covalent Bond to Proteinase K, PDB code: 7a9f:
Jump to Silicon binding site number: 1; 2;

Silicon binding site 1 out of 2 in the Co-Substituted Keggin Silicotungstate with Covalent Bond to Proteinase K


Mono view


Stereo pair view

A full contact list of Silicon with other atoms in the Si binding site number 1 of Co-Substituted Keggin Silicotungstate with Covalent Bond to Proteinase K within 5.0Å range: probe atom residue distance (Å) B Occ A:Si301 b:9.0 occ:0.70 SI2 A:R5Q301 0.0 9.0 0.7 O60 A:R5Q301 1.6 6.0 0.7 O61 A:R5Q301 1.6 8.2 0.7 O59 A:R5Q301 1.6 5.5 0.7 O62 A:R5Q301 1.6 7.5 0.7 O66 A:R5Q301 3.3 8.7 0.7 O53 A:R5Q301 3.3 7.4 0.7 O67 A:R5Q301 3.3 9.8 0.7 O64 A:R5Q301 3.3 8.4 0.7 O57 A:R5Q301 3.3 9.3 0.7 O76 A:R5Q301 3.4 7.3 0.7 O68 A:R5Q301 3.4 7.5 0.7 O75 A:R5Q301 3.4 7.8 0.7 O41 A:R5Q301 3.4 8.5 0.7 O65 A:R5Q301 3.4 6.4 0.7 CO1 A:R5Q301 3.4 11.2 0.7 O49 A:R5Q301 3.4 7.0 0.7 O63 A:R5Q301 3.4 6.9 0.7 W18 A:R5Q301 3.5 9.7 0.7 W17 A:R5Q301 3.5 10.7 0.7 W22 A:R5Q301 3.5 10.6 0.7 W19 A:R5Q301 3.5 10.2 0.7 W12 A:R5Q301 3.5 10.3 0.7 W16 A:R5Q301 3.5 11.6 0.7 W21 A:R5Q301 3.5 10.8 0.7 W13 A:R5Q301 3.5 11.0 0.7 W20 A:R5Q301 3.6 10.8 0.7 W15 A:R5Q301 3.6 11.3 0.7 W14 A:R5Q301 3.6 10.7 0.7 O55 A:R5Q301 3.9 10.6 0.7 O71 A:R5Q301 3.9 8.0 0.7 O73 A:R5Q301 3.9 9.1 0.7 O51 A:R5Q301 4.0 7.0 0.7 O46 A:R5Q301 4.0 9.0 0.7 O45 A:R5Q301 4.0 8.9 0.7 O78 A:R5Q301 4.0 8.4 0.7 O43 A:R5Q301 4.0 8.4 0.7 O77 A:R5Q301 4.0 9.2 0.7 O44 A:R5Q301 4.0 7.5 0.7 O69 A:R5Q301 4.0 9.4 0.7 O47 A:R5Q301 4.0 8.2 0.7 O A:HOH402 4.4 29.8 1.0

Silicon binding site 2 out of 2 in the Co-Substituted Keggin Silicotungstate with Covalent Bond to Proteinase K


Mono view


Stereo pair view

A full contact list of Silicon with other atoms in the Si binding site number 2 of Co-Substituted Keggin Silicotungstate with Covalent Bond to Proteinase K within 5.0Å range: probe atom residue distance (Å) B Occ A:Si302 b:19.4 occ:0.30 SI2 A:R5Q302 0.0 19.4 0.3 O61 A:R5Q302 1.5 22.6 0.3 O59 A:R5Q302 1.6 22.9 0.3 O62 A:R5Q302 1.6 23.3 0.3 O60 A:R5Q302 1.6 23.1 0.3 CO1 A:R5Q302 3.5 18.8 0.3 W17 A:R5Q302 3.5 18.9 0.3 W18 A:R5Q302 3.5 20.1 0.3 W21 A:R5Q302 3.5 20.2 0.3 O65 A:R5Q302 3.5 21.6 0.3 W14 A:R5Q302 3.5 16.3 0.3 W22 A:R5Q302 3.5 20.1 0.3 O66 A:R5Q302 3.5 19.7 0.3 O53 A:R5Q302 3.5 17.0 0.3 W19 A:R5Q302 3.5 18.1 0.3 O68 A:R5Q302 3.5 19.4 0.3 O64 A:R5Q302 3.5 17.6 0.3 W20 A:R5Q302 3.6 17.3 0.3 W15 A:R5Q302 3.6 16.7 0.3 O76 A:R5Q302 3.6 15.0 0.3 O75 A:R5Q302 3.6 12.1 0.3 O63 A:R5Q302 3.6 19.1 0.3 O49 A:R5Q302 3.6 18.1 0.3 O67 A:R5Q302 3.6 21.3 0.3 W12 A:R5Q302 3.6 15.0 0.3 W16 A:R5Q302 3.6 14.6 0.3 O57 A:R5Q302 3.6 18.7 0.3 W13 A:R5Q302 3.7 13.9 0.3 O78 A:R5Q302 3.7 17.9 0.3 O55 A:R5Q302 3.7 18.8 0.3 O41 A:R5Q302 3.7 17.6 0.3 O69 A:R5Q302 3.7 16.1 0.3 O71 A:R5Q302 3.7 16.6 0.3 O73 A:R5Q302 3.7 17.3 0.3 O46 A:R5Q302 3.8 18.5 0.3 O51 A:R5Q302 3.8 17.3 0.3 O47 A:R5Q302 3.8 15.8 0.3 O44 A:R5Q302 3.8 11.1 0.3 O43 A:R5Q302 3.8 14.2 0.3 O45 A:R5Q302 3.8 14.0 0.3 O77 A:R5Q302 3.8 15.8 0.3

J.Breibeck, A.Rompel. Co-Substituted Keggin Silicotungstate with Covalent Bond to Proteinase K To Be Published.