Magnesium in PDB 2r20: Structure of the Rna Brominated Tridecamer R(Gcguu- 5BUGAAACGC) at 1.3 A (BR2)

The structure of Structure of the Rna Brominated Tridecamer R(Gcguu- 5BUGAAACGC) at 1.3 A (BR2), PDB code: 2r20 was solved by Y.Timsit, S.Bombard, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	20.00 / 1.30
Space group	P 1
Cell size a, b, c (Å), α, β, γ (°)	25.280, 25.800, 29.990, 98.62, 105.58, 100.92
R / Rfree (%)	18.1 / 19.5

The structure of Structure of the Rna Brominated Tridecamer R(Gcguu- 5BUGAAACGC) at 1.3 A (BR2) also contains other interesting chemical elements:

Bromine	(Br)	2 atoms
Sodium	(Na)	5 atoms

The binding sites of Magnesium atom in the Structure of the Rna Brominated Tridecamer R(Gcguu- 5BUGAAACGC) at 1.3 A (BR2) (pdb code 2r20). 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 Structure of the Rna Brominated Tridecamer R(Gcguu- 5BUGAAACGC) at 1.3 A (BR2), PDB code: 2r20:

Magnesium binding site 1 out of 1 in the Structure of the Rna Brominated Tridecamer R(Gcguu- 5BUGAAACGC) at 1.3 A (BR2)


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Structure of the Rna Brominated Tridecamer R(Gcguu- 5BUGAAACGC) at 1.3 A (BR2) within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg17 b:15.7 occ:1.00 O A:HOH30 2.0 17.5 1.0 O A:HOH90 2.0 34.6 1.0 O A:HOH53 2.2 32.7 1.0 O A:HOH67 2.2 23.7 1.0 O A:HOH64 2.2 26.3 1.0 O A:HOH23 2.3 14.3 1.0 O A:HOH65 3.9 27.1 1.0 O A:HOH22 4.0 15.3 1.0 O B:HOH63 4.2 24.5 1.0 N4 A:C11 4.2 11.5 1.0 O B:HOH94 4.2 28.4 1.0 O6 A:G12 4.3 10.7 1.0 O A:HOH33 4.4 15.3 1.0 C5 A:C11 4.7 9.7 1.0 N7 A:G12 4.7 8.7 1.0 C4 A:C11 4.8 9.2 1.0

Y.Timsit, S.Bombard. The 1.3 A Resolution Structure of the Rna Tridecamer R(Gcguuugaaacgc): Metal Ion Binding Correlates with Base Unstacking and Groove Contraction. Rna V. 13 2098 2007.
ISSN: ISSN 1355-8382
PubMed: 17940138
DOI: 10.1261/RNA.730207