Magnesium in PDB 1ntb: 2.9 A Crystal Structure of Streptomycin Rna-Aptamer Complex

The structure of 2.9 A Crystal Structure of Streptomycin Rna-Aptamer Complex, PDB code: 1ntb was solved by V.Tereshko, E.Skripkin, D.J.Patel, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	20.00 / 2.90
Space group	I 4
Cell size a, b, c (Å), α, β, γ (°)	82.634, 82.634, 49.153, 90.00, 90.00, 90.00
R / Rfree (%)	20.4 / 25.5

The structure of 2.9 A Crystal Structure of Streptomycin Rna-Aptamer Complex also contains other interesting chemical elements:

Sodium

(Na)

2 atoms

The binding sites of Magnesium atom in the 2.9 A Crystal Structure of Streptomycin Rna-Aptamer Complex (pdb code 1ntb). 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 2.9 A Crystal Structure of Streptomycin Rna-Aptamer Complex, PDB code: 1ntb:

Magnesium binding site 1 out of 1 in the 2.9 A Crystal Structure of Streptomycin Rna-Aptamer Complex


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of 2.9 A Crystal Structure of Streptomycin Rna-Aptamer Complex within 5.0Å range: probe atom residue distance (Å) B Occ B:Mg1 b:44.1 occ:1.00 O A:HOH26 2.1 35.8 1.0 O4' B:C109 2.2 43.1 1.0 O5' B:C109 2.2 43.3 1.0 O2 A:U10 2.2 44.4 1.0 O4 A:U11 2.2 37.3 1.0 O B:HOH7 2.5 48.4 1.0 C5' B:C109 3.0 42.5 1.0 C4' B:C109 3.0 42.1 1.0 C2 A:U10 3.3 46.0 1.0 C4 A:U11 3.3 40.3 1.0 C1' B:C109 3.4 43.0 1.0 P B:C109 3.5 43.5 1.0 OP2 B:C109 3.6 42.8 1.0 N3 A:U10 3.7 46.7 1.0 N1 B:C109 3.8 44.0 1.0 C5 A:U11 3.9 41.2 1.0 C6 B:C109 4.1 45.3 1.0 C3' B:C109 4.3 41.3 1.0 N3 A:U11 4.4 41.4 1.0 OP1 B:C109 4.4 43.0 1.0 N1 A:U10 4.5 46.2 1.0 C2' B:C109 4.5 41.9 1.0 C2 B:C109 4.6 44.4 1.0 O3' B:A108 4.6 47.7 1.0 C3' B:A108 4.9 50.7 1.0 O2 B:C109 4.9 43.7 1.0 C5 B:C109 5.0 45.9 1.0 C1' A:U10 5.0 46.4 1.0

V.Tereshko, E.Skripkin, D.J.Patel. Encapsulating Streptomycin Within A Small 40-Mer Rna Chem.Biol. V. 10 175 2003.
ISSN: ISSN 1074-5521
PubMed: 12618190
DOI: 10.1016/S1074-5521(03)00024-3