Sodium in PDB 1xcu: Oligonucleotid/Drug Complex

The structure of Oligonucleotid/Drug Complex, PDB code: 1xcu was solved by N.Valls, R.A.Steiner, G.Wright, G.N.Murshudov, J.A.Subirana, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	25.00 / 2.00
Space group	C 2 2 2
Cell size a, b, c (Å), α, β, γ (°)	29.056, 52.856, 40.084, 90.00, 90.00, 90.00
R / Rfree (%)	21.3 / 25.2

The structure of Oligonucleotid/Drug Complex also contains other interesting chemical elements:

Cobalt	(Co)	3 atoms
Barium	(Ba)	1 atom

The binding sites of Sodium atom in the Oligonucleotid/Drug Complex (pdb code 1xcu). This binding sites where shown within 5.0 Angstroms radius around Sodium atom.
In total only one binding site of Sodium was determined in the Oligonucleotid/Drug Complex, PDB code: 1xcu:

Sodium binding site 1 out of 1 in the Oligonucleotid/Drug Complex


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 1 of Oligonucleotid/Drug Complex within 5.0Å range: probe atom residue distance (Å) B Occ B:Na36 b:72.5 occ:0.25 C20 B:AN942 2.7 33.8 0.2 OP2 B:DG8 3.1 57.8 1.0 O19 B:AN942 3.2 35.1 0.2 C18 B:AN942 3.4 33.9 0.2 P B:DG8 4.5 56.4 1.0 N17 B:AN942 4.6 32.1 0.2 O4' B:DG8 4.9 47.5 1.0

N.Valls, R.A.Steiner, G.Wright, G.N.Murshudov, J.A.Subirana. Variable Role of Ions in Two Drug Intercalation Complexes of Dna J.Biol.Inorg.Chem. V. 10 476 2005.
ISSN: ISSN 0949-8257
PubMed: 15926069
DOI: 10.1007/S00775-005-0655-3