Potassium in PDB 1kf1: Structure and Packing of Human Telomeric Dna

The structure of Structure and Packing of Human Telomeric Dna, PDB code: 1kf1 was solved by G.N.Parkinson, M.P.H.Lee, S.Neidle, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	10.00 / 2.10
Space group	P 6
Cell size a, b, c (Å), α, β, γ (°)	56.682, 56.682, 42.106, 90.00, 90.00, 120.00
R / Rfree (%)	23.1 / 26.3

The binding sites of Potassium atom in the Structure and Packing of Human Telomeric Dna (pdb code 1kf1). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 3 binding sites of Potassium where determined in the Structure and Packing of Human Telomeric Dna, PDB code: 1kf1:
Jump to Potassium binding site number: 1; 2; 3;

Potassium binding site 1 out of 3 in the Structure and Packing of Human Telomeric Dna


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Structure and Packing of Human Telomeric Dna within 5.0Å range: probe atom residue distance (Å) B Occ A:K24 b:28.6 occ:1.00 O6 A:DG10 2.4 34.2 1.0 O6 A:DG4 2.6 30.9 1.0 O6 A:DG16 2.6 32.3 1.0 O6 A:DG22 2.6 29.2 1.0 O6 A:DG9 2.9 32.2 1.0 O6 A:DG21 2.9 27.4 1.0 O6 A:DG15 3.0 26.7 1.0 O6 A:DG3 3.2 22.9 1.0 C6 A:DG10 3.5 32.8 1.0 K A:K25 3.5 27.2 1.0 C6 A:DG4 3.6 25.6 1.0 C6 A:DG16 3.6 34.2 1.0 C6 A:DG22 3.6 29.5 1.0 C6 A:DG9 3.7 33.0 1.0 C6 A:DG15 3.7 26.2 1.0 C6 A:DG21 3.8 23.1 1.0 N1 A:DG10 3.8 33.1 1.0 N1 A:DG4 3.9 27.6 1.0 C6 A:DG3 3.9 26.2 1.0 N1 A:DG22 3.9 29.9 1.0 N1 A:DG16 4.0 31.4 1.0 N1 A:DG15 4.0 23.6 1.0 N1 A:DG9 4.0 27.9 1.0 N1 A:DG3 4.1 21.3 1.0 N1 A:DG21 4.1 24.7 1.0 C5 A:DG10 4.7 34.0 1.0 C5 A:DG9 4.8 36.7 1.0 C5 A:DG15 4.8 22.8 1.0 C5 A:DG4 4.9 27.9 1.0 C5 A:DG16 4.9 29.8 1.0 C5 A:DG22 5.0 32.5 1.0 C5 A:DG21 5.0 26.6 1.0

Potassium binding site 2 out of 3 in the Structure and Packing of Human Telomeric Dna


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Structure and Packing of Human Telomeric Dna within 5.0Å range: probe atom residue distance (Å) B Occ A:K25 b:27.2 occ:1.00 O6 A:DG3 2.7 22.9 1.0 O6 A:DG9 2.7 32.2 1.0 O6 A:DG15 2.7 26.7 1.0 O6 A:DG2 2.7 24.3 1.0 O6 A:DG14 2.8 37.5 1.0 O6 A:DG8 2.8 26.7 1.0 O6 A:DG21 2.8 27.4 1.0 O6 A:DG20 2.9 20.3 1.0 K A:K26 3.3 25.1 0.5 K A:K24 3.5 28.6 1.0 C6 A:DG8 3.6 24.5 1.0 C6 A:DG3 3.6 26.2 1.0 C6 A:DG2 3.6 31.0 1.0 C6 A:DG15 3.6 26.2 1.0 C6 A:DG21 3.7 23.1 1.0 C6 A:DG14 3.7 34.0 1.0 C6 A:DG9 3.7 33.0 1.0 C6 A:DG20 3.7 21.1 1.0 N1 A:DG8 3.9 26.6 1.0 N1 A:DG15 3.9 23.6 1.0 N1 A:DG2 3.9 32.9 1.0 N1 A:DG3 3.9 21.3 1.0 N1 A:DG21 3.9 24.7 1.0 N1 A:DG14 4.0 29.5 1.0 N1 A:DG20 4.1 19.7 1.0 N1 A:DG9 4.1 27.9 1.0 C5 A:DG8 4.8 27.9 1.0 C5 A:DG14 4.9 21.1 1.0 C5 A:DG21 4.9 26.6 1.0 C5 A:DG3 4.9 22.7 1.0 C5 A:DG20 4.9 28.6 1.0 C5 A:DG2 4.9 29.2 1.0 C5 A:DG9 4.9 36.7 1.0 C5 A:DG15 4.9 22.8 1.0

Potassium binding site 3 out of 3 in the Structure and Packing of Human Telomeric Dna


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Structure and Packing of Human Telomeric Dna within 5.0Å range: probe atom residue distance (Å) B Occ A:K26 b:25.1 occ:0.50 O6 A:DG20 2.6 20.3 1.0 O6 A:DG14 2.8 37.5 1.0 O6 A:DG8 2.8 26.7 1.0 O6 A:DG2 2.8 24.3 1.0 K A:K25 3.3 27.2 1.0 C6 A:DG20 3.5 21.1 1.0 C6 A:DG14 3.7 34.0 1.0 C6 A:DG2 3.7 31.0 1.0 C6 A:DG8 3.7 24.5 1.0 N1 A:DG20 3.9 19.7 1.0 N1 A:DG14 3.9 29.5 1.0 N1 A:DG2 4.0 32.9 1.0 N1 A:DG8 4.1 26.6 1.0 C5 A:DG20 4.7 28.6 1.0 C5 A:DG2 4.9 29.2 1.0 C5 A:DG14 4.9 21.1 1.0 C5 A:DG8 5.0 27.9 1.0

G.N.Parkinson, M.P.Lee, S.Neidle. Crystal Structure of Parallel Quadruplexes From Human Telomeric Dna. Nature V. 417 876 2002.
ISSN: ISSN 0028-0836
PubMed: 12050675
DOI: 10.1038/NATURE755