Magnesium in PDB 1s45: Crystal Structure Analysis of the Dna Quadruplex D(Tggggt) S1

The structure of Crystal Structure Analysis of the Dna Quadruplex D(Tggggt) S1, PDB code: 1s45 was solved by C.Caceres, G.Wright, C.Gouyette, G.Parkinson, J.A.Subirana, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	18.50 / 2.20
Space group	P 1
Cell size a, b, c (Å), α, β, γ (°)	28.259, 35.410, 32.057, 83.73, 61.78, 76.68
R / Rfree (%)	17.3 / 23.9

The structure of Crystal Structure Analysis of the Dna Quadruplex D(Tggggt) S1 also contains other interesting chemical elements:

Thallium	(Tl)	6 atoms
Sodium	(Na)	1 atom

The binding sites of Magnesium atom in the Crystal Structure Analysis of the Dna Quadruplex D(Tggggt) S1 (pdb code 1s45). 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 Crystal Structure Analysis of the Dna Quadruplex D(Tggggt) S1, PDB code: 1s45:

Magnesium binding site 1 out of 1 in the Crystal Structure Analysis of the Dna Quadruplex D(Tggggt) S1


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Crystal Structure Analysis of the Dna Quadruplex D(Tggggt) S1 within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg2100 b:11.2 occ:1.00 O H:HOH1118 1.8 1.6 1.0 O E:HOH1137 2.0 8.8 1.0 O H:HOH1100 2.0 1.6 1.0 O H:HOH1117 2.2 10.6 1.0 O E:HOH1190 2.4 11.7 1.0 O H:HOH1123 2.5 1.6 1.0 O E:HOH1193 3.9 17.7 1.0 O4 A:DT181 3.9 15.2 1.0 O E:HOH1217 4.1 13.8 1.0 O H:HOH1136 4.2 21.2 1.0 OP1 H:DG952 4.4 2.9 1.0 C5' E:DG624 4.5 7.5 1.0 C7 A:DT181 4.6 13.2 1.0 OP2 H:DG952 4.7 2.4 1.0 OP1 E:DG624 4.9 7.8 1.0 C4 A:DT181 5.0 14.6 1.0

C.Caceres, G.Wright, C.Gouyette, G.Parkinson, J.A.Subirana. A Thymine Tetrad in D(Tggggt) Quadruplexes Stabilized with Tl+1/Na+1 Ions Nucleic Acids Res. V. 32 1097 2004.
ISSN: ISSN 0305-1048
PubMed: 14960719
DOI: 10.1093/NAR/GKH269