Barium in PDB 6tzq: A Dna G-Quadruplex/I-Motif Hybrid

The structure of A Dna G-Quadruplex/I-Motif Hybrid, PDB code: 6tzq was solved by B.Chu, P.J.Paukstelis, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	32.88 / 2.29
Space group	P 32 2 1
Cell size a, b, c (Å), α, β, γ (°)	37.377, 37.377, 98.651, 90.00, 90.00, 120.00
R / Rfree (%)	n/a / 25.5

The binding sites of Barium atom in the A Dna G-Quadruplex/I-Motif Hybrid (pdb code 6tzq). This binding sites where shown within 5.0 Angstroms radius around Barium atom.
In total only one binding site of Barium was determined in the A Dna G-Quadruplex/I-Motif Hybrid, PDB code: 6tzq:

Barium binding site 1 out of 1 in the A Dna G-Quadruplex/I-Motif Hybrid


Mono view


Stereo pair view

A full contact list of Barium with other atoms in the Ba binding site number 1 of A Dna G-Quadruplex/I-Motif Hybrid within 5.0Å range: probe atom residue distance (Å) B Occ A:Ba101 b:65.3 occ:0.50 O6 B:DG4 2.5 56.5 1.0 O6 A:DG4 2.6 62.7 1.0 O6 A:DG5 2.7 52.4 1.0 O6 B:DG5 2.8 68.4 1.0 C6 B:DG4 3.5 61.2 1.0 C6 A:DG4 3.5 58.6 1.0 C6 A:DG5 3.6 58.0 1.0 C6 B:DG5 3.7 63.6 1.0 N1 A:DG5 3.9 59.8 1.0 N1 A:DG4 3.9 57.2 1.0 N1 B:DG5 3.9 64.3 1.0 N1 B:DG4 3.9 60.3 1.0 C6 A:DA3 4.7 59.1 1.0 C5 A:DG4 4.7 56.3 1.0 C5 B:DG4 4.8 60.4 1.0 N6 A:DA3 4.8 60.9 1.0 N1 A:DA3 4.8 61.0 1.0 C5 A:DG5 4.9 55.4 1.0 C5 B:DG5 4.9 62.8 1.0

B.Chu, D.Zhang, P.J.Paukstelis. A Dna G-Quadruplex/I-Motif Hybrid. Nucleic Acids Res. 2019.
ISSN: ESSN 1362-4962
PubMed: 31724696
DOI: 10.1093/NAR/GKZ1008