Magnesium in PDB 6dqx: Actinobacillus Ureae Class Id Ribonucleotide Reductase Alpha Subunit

All present enzymatic activity of Actinobacillus Ureae Class Id Ribonucleotide Reductase Alpha Subunit:
1.17.4.1;

The structure of Actinobacillus Ureae Class Id Ribonucleotide Reductase Alpha Subunit, PDB code: 6dqx was solved by M.J.Mcbride, G.M.Palowitch, A.K.Boal, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	50.00 / 1.76
Space group	P 42 21 2
Cell size a, b, c (Å), α, β, γ (°)	97.984, 97.984, 132.005, 90.00, 90.00, 90.00
R / Rfree (%)	19.2 / 22.4

The structure of Actinobacillus Ureae Class Id Ribonucleotide Reductase Alpha Subunit also contains other interesting chemical elements:

Chlorine

(Cl)

2 atoms

The binding sites of Magnesium atom in the Actinobacillus Ureae Class Id Ribonucleotide Reductase Alpha Subunit (pdb code 6dqx). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 2 binding sites of Magnesium where determined in the Actinobacillus Ureae Class Id Ribonucleotide Reductase Alpha Subunit, PDB code: 6dqx:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in the Actinobacillus Ureae Class Id Ribonucleotide Reductase Alpha Subunit


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Actinobacillus Ureae Class Id Ribonucleotide Reductase Alpha Subunit within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg603 b:21.8 occ:1.00 O A:HOH880 1.9 24.9 1.0 O A:HOH931 2.0 28.1 1.0 O A:HOH938 2.0 19.0 1.0 O A:HOH805 2.1 19.4 1.0 OH A:TYR117 4.1 13.8 1.0 O A:HOH937 4.2 23.6 1.0 ND1 A:HIS250 4.3 14.2 1.0 O A:HOH903 4.3 27.5 1.0 O A:HOH759 4.6 22.5 1.0 CE1 A:HIS250 4.6 14.8 1.0 OD1 A:ASP120 4.7 19.8 1.0 O A:HOH867 4.9 17.0 1.0 CZ A:TYR117 5.0 14.1 1.0

Magnesium binding site 2 out of 2 in the Actinobacillus Ureae Class Id Ribonucleotide Reductase Alpha Subunit


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Actinobacillus Ureae Class Id Ribonucleotide Reductase Alpha Subunit within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg604 b:38.1 occ:1.00 O A:HOH923 2.0 26.9 1.0 ND1 A:HIS45 2.5 32.2 1.0 CE1 A:HIS45 3.3 32.6 1.0 CG A:HIS45 3.5 30.8 1.0 CB A:HIS45 3.9 26.7 1.0 O A:HOH743 4.0 26.5 1.0 O A:HOH733 4.4 29.1 1.0 NE2 A:HIS45 4.4 33.2 1.0 CA A:HIS45 4.5 24.8 1.0 CD2 A:HIS45 4.5 32.8 1.0

H.R.Rose, A.O.Maggiolo, M.J.Mcbride, G.M.Palowitch, M.E.Pandelia, K.M.Davis, N.H.Yennawar, A.K.Boal. Structures of Class Id Ribonucleotide Reductase Catalytic Subunits Reveal A Minimal Architecture For Deoxynucleotide Biosynthesis. Biochemistry V. 58 1845 2019.
ISSN: ISSN 1520-4995
PubMed: 30855138
DOI: 10.1021/ACS.BIOCHEM.8B01252