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Magnesium in PDB 6op4: Selenium-Incorporated, Carbon Monoxide-Inhibited, Reactivated Femo- Cofactor of Nitrogenase From Azotobacter Vinelandii

Enzymatic activity of Selenium-Incorporated, Carbon Monoxide-Inhibited, Reactivated Femo- Cofactor of Nitrogenase From Azotobacter Vinelandii

All present enzymatic activity of Selenium-Incorporated, Carbon Monoxide-Inhibited, Reactivated Femo- Cofactor of Nitrogenase From Azotobacter Vinelandii:
1.18.6.1;

Protein crystallography data

The structure of Selenium-Incorporated, Carbon Monoxide-Inhibited, Reactivated Femo- Cofactor of Nitrogenase From Azotobacter Vinelandii, PDB code: 6op4 was solved by R.J.Arias, D.C.Rees, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 39.41 / 2.30
Space group P 1 21 1
Cell size a, b, c (Å), α, β, γ (°) 76.981, 129.326, 106.755, 90.00, 108.84, 90.00
R / Rfree (%) 17.6 / 22.3

Other elements in 6op4:

The structure of Selenium-Incorporated, Carbon Monoxide-Inhibited, Reactivated Femo- Cofactor of Nitrogenase From Azotobacter Vinelandii also contains other interesting chemical elements:

Molybdenum (Mo) 2 atoms
Iron (Fe) 30 atoms
Calcium (Ca) 2 atoms

Magnesium Binding Sites:

The binding sites of Magnesium atom in the Selenium-Incorporated, Carbon Monoxide-Inhibited, Reactivated Femo- Cofactor of Nitrogenase From Azotobacter Vinelandii (pdb code 6op4). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 2 binding sites of Magnesium where determined in the Selenium-Incorporated, Carbon Monoxide-Inhibited, Reactivated Femo- Cofactor of Nitrogenase From Azotobacter Vinelandii, PDB code: 6op4:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in 6op4

Go back to Magnesium Binding Sites List in 6op4
Magnesium binding site 1 out of 2 in the Selenium-Incorporated, Carbon Monoxide-Inhibited, Reactivated Femo- Cofactor of Nitrogenase From Azotobacter Vinelandii


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Selenium-Incorporated, Carbon Monoxide-Inhibited, Reactivated Femo- Cofactor of Nitrogenase From Azotobacter Vinelandii within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Mg604

b:49.7
occ:1.00
CE2 D:TYR12 4.3 22.5 1.0
OE1 B:GLU508 4.3 31.6 1.0
CD2 D:TYR12 4.4 21.4 1.0
CD1 B:LEU505 4.6 21.3 1.0
CD B:GLU508 4.9 29.9 1.0

Magnesium binding site 2 out of 2 in 6op4

Go back to Magnesium Binding Sites List in 6op4
Magnesium binding site 2 out of 2 in the Selenium-Incorporated, Carbon Monoxide-Inhibited, Reactivated Femo- Cofactor of Nitrogenase From Azotobacter Vinelandii


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Selenium-Incorporated, Carbon Monoxide-Inhibited, Reactivated Femo- Cofactor of Nitrogenase From Azotobacter Vinelandii within 5.0Å range:
probe atom residue distance (Å) B Occ
D:Mg604

b:58.4
occ:1.00
O D:HOH705 2.2 24.2 1.0
CB D:PRO13 3.7 20.4 1.0
CG D:PRO13 3.7 20.1 1.0
CE D:LYS9 3.7 37.0 1.0
CD D:LYS9 4.0 32.4 1.0
OD1 D:ASP17 4.2 32.5 1.0
O D:PRO13 4.2 19.9 1.0
C D:PRO13 4.7 20.2 1.0
CA D:PRO13 4.8 18.9 1.0
CG D:LYS9 4.9 28.7 1.0

Reference:

J.T.Henthorn, R.J.Arias, S.Koroidov, T.Kroll, D.Sokaras, U.Bergmann, D.C.Rees, S.Debeer. Localized Electronic Structure of Nitrogenase Femoco Revealed By Selenium K-Edge High Resolution X-Ray Absorption Spectroscopy. J.Am.Chem.Soc. V. 141 13676 2019.
ISSN: ESSN 1520-5126
PubMed: 31356071
DOI: 10.1021/JACS.9B06988
Page generated: Tue Oct 1 13:30:22 2024

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