Magnesium in PDB 1u48: Extension of A Cytosine-8-Oxoguanine Base Pair

All present enzymatic activity of Extension of A Cytosine-8-Oxoguanine Base Pair:
2.7.7.7;

The structure of Extension of A Cytosine-8-Oxoguanine Base Pair, PDB code: 1u48 was solved by G.W.Hsu, M.Ober, T.Carell, L.S.Beese, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	40.78 / 2.10
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	87.342, 93.265, 106.084, 90.00, 90.00, 90.00
R / Rfree (%)	20.5 / 23.9

The binding sites of Magnesium atom in the Extension of A Cytosine-8-Oxoguanine Base Pair (pdb code 1u48). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total only one binding site of Magnesium was determined in the Extension of A Cytosine-8-Oxoguanine Base Pair, PDB code: 1u48:

Magnesium binding site 1 out of 1 in the Extension of A Cytosine-8-Oxoguanine Base Pair


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Extension of A Cytosine-8-Oxoguanine Base Pair within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg920 b:38.4 occ:1.00 OD1 A:ASP653 2.7 23.1 1.0 O A:TYR654 2.8 17.6 1.0 OD2 A:ASP830 3.1 24.8 1.0 O A:HOH2525 3.1 26.9 1.0 O A:HOH3456 3.1 39.8 1.0 O A:HOH3202 3.2 44.4 1.0 CG A:ASP653 3.6 21.9 1.0 O A:HOH2512 3.8 19.9 1.0 CB A:ASP653 3.9 20.1 1.0 C A:TYR654 3.9 17.9 1.0 CG A:ASP830 4.0 23.4 1.0 O A:HOH2818 4.2 38.4 1.0 OD1 A:ASP830 4.4 22.8 1.0 O A:HOH2915 4.5 37.9 1.0 CA A:SER655 4.6 19.1 1.0 N A:TYR654 4.6 18.2 1.0 C A:ASP653 4.6 18.3 1.0 N A:SER655 4.7 18.2 1.0 OD2 A:ASP653 4.8 23.5 1.0 CA A:ASP653 4.9 19.1 1.0 O A:ASP653 4.9 18.0 1.0 CA A:TYR654 4.9 17.6 1.0 N A:GLN656 5.0 17.7 1.0

G.W.Hsu, M.Ober, T.Carell, L.S.Beese. Error-Prone Replication of Oxidatively Damaged Dna By A High-Fidelity Dna Polymerase. Nature V. 431 217 2004.
ISSN: ISSN 0028-0836
PubMed: 15322558
DOI: 10.1038/NATURE02908